Florian WaltherandClaude Opus 5.5
7afcecd053
- user@host in bold green (bold red for root), directory in bold blue - colors are disabled with NO_COLOR, TERM=dumb or when stdout is not a terminal - parts are sanitized before adding the color codes - only replace the home directory with ~ on a path boundary Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
1197 lines
34 KiB
Go
1197 lines
34 KiB
Go
package main
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import (
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"bytes"
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"io"
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"os"
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"os/exec"
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"path/filepath"
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"reflect"
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"sort"
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"strings"
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"syscall"
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"testing"
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"time"
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"github.com/google/shlex"
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)
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// =============================================================================
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// Direct tests for shlex parsing (the Phase 1.1 improvement)
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// =============================================================================
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func TestShlexParsing_SingleQuotes(t *testing.T) {
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args, err := shlex.Split("echo 'hello world'")
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if err != nil {
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t.Fatalf("shlex.Split failed: %v", err)
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}
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if len(args) != 2 {
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t.Fatalf("expected 2 args, got %d: %v", len(args), args)
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}
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if args[0] != "echo" {
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t.Errorf("expected 'echo', got '%s'", args[0])
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}
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if args[1] != "hello world" {
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t.Errorf("expected 'hello world', got '%s'", args[1])
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}
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}
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func TestShlexParsing_DoubleQuotes(t *testing.T) {
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args, err := shlex.Split(`echo "hello world"`)
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if err != nil {
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t.Fatalf("shlex.Split failed: %v", err)
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}
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if len(args) != 2 {
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t.Fatalf("expected 2 args, got %d: %v", len(args), args)
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}
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if args[0] != "echo" {
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t.Errorf("expected 'echo', got '%s'", args[0])
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}
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if args[1] != "hello world" {
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t.Errorf("expected 'hello world', got '%s'", args[1])
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}
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}
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func TestShlexParsing_MixedQuotes(t *testing.T) {
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args, err := shlex.Split(`echo 'single' "double" unquoted`)
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if err != nil {
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t.Fatalf("shlex.Split failed: %v", err)
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}
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if len(args) != 4 {
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t.Fatalf("expected 4 args, got %d: %v", len(args), args)
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}
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if args[0] != "echo" {
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t.Errorf("expected 'echo', got '%s'", args[0])
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}
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if args[1] != "single" {
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t.Errorf("expected 'single', got '%s'", args[1])
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}
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if args[2] != "double" {
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t.Errorf("expected 'double', got '%s'", args[2])
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}
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if args[3] != "unquoted" {
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t.Errorf("expected 'unquoted', got '%s'", args[3])
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}
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}
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func TestShlexParsing_EscapedSpaces(t *testing.T) {
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args, err := shlex.Split("echo file\\ with\\ spaces")
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if err != nil {
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t.Fatalf("shlex.Split failed: %v", err)
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}
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if len(args) != 2 {
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t.Fatalf("expected 2 args, got %d: %v", len(args), args)
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}
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if args[0] != "echo" {
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t.Errorf("expected 'echo', got '%s'", args[0])
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}
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if args[1] != "file with spaces" {
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t.Errorf("expected 'file with spaces', got '%s'", args[1])
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}
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}
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func TestShlexParsing_NestedQuotes(t *testing.T) {
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args, err := shlex.Split(`echo "hello \"world\""`)
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if err != nil {
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t.Fatalf("shlex.Split failed: %v", err)
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}
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if len(args) != 2 {
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t.Fatalf("expected 2 args, got %d: %v", len(args), args)
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}
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if args[0] != "echo" {
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t.Errorf("expected 'echo', got '%s'", args[0])
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}
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if args[1] != `hello "world"` {
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t.Errorf("expected 'hello \"world\"', got '%s'", args[1])
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}
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}
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func TestShlexParsing_MultipleSpaces(t *testing.T) {
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args, err := shlex.Split("echo arg1 arg2")
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if err != nil {
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t.Fatalf("shlex.Split failed: %v", err)
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}
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if len(args) != 3 {
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t.Fatalf("expected 3 args, got %d: %v", len(args), args)
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}
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if args[0] != "echo" {
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t.Errorf("expected 'echo', got '%s'", args[0])
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}
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if args[1] != "arg1" {
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t.Errorf("expected 'arg1', got '%s'", args[1])
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}
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if args[2] != "arg2" {
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t.Errorf("expected 'arg2', got '%s'", args[2])
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}
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}
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func TestShlexParsing_Empty(t *testing.T) {
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args, err := shlex.Split("")
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if err != nil {
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t.Fatalf("shlex.Split failed: %v", err)
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}
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if len(args) != 0 {
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t.Fatalf("expected 0 args for empty string, got %d: %v", len(args), args)
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}
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}
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func TestShlexParsing_WhitespaceOnly(t *testing.T) {
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args, err := shlex.Split(" ")
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if err != nil {
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t.Fatalf("shlex.Split failed: %v", err)
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}
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if len(args) != 0 {
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t.Fatalf("expected 0 args for whitespace, got %d: %v", len(args), args)
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}
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}
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func TestShlexParsing_InvalidUnclosedQuote(t *testing.T) {
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_, err := shlex.Split("echo 'unclosed")
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if err == nil {
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t.Error("expected error for unclosed quote, got nil")
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}
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}
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func TestShlexParsing_InvalidUnclosedDoubleQuote(t *testing.T) {
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_, err := shlex.Split(`echo "unclosed`)
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if err == nil {
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t.Error("expected error for unclosed double quote, got nil")
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}
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}
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// =============================================================================
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// Tests for execInput with controlled environment
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// =============================================================================
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func TestExecInput_CdNoArgs(t *testing.T) {
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// cd with no args now goes to home directory
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// Save current directory
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origDir, _ := os.Getwd()
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defer os.Chdir(origDir)
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err := execInput("cd")
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if err != nil {
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t.Errorf("cd with no args should go to home, got error: %v", err)
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}
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// Verify we changed to home directory
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home := getHomeDir()
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newDir, _ := os.Getwd()
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if newDir != home {
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t.Errorf("expected to be in home dir %s, but in %s", home, newDir)
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}
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}
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func TestExecInput_EmptyInput(t *testing.T) {
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err := execInput("")
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if err != nil {
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t.Errorf("expected nil for empty input, got %v", err)
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}
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}
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func TestExecInput_WhitespaceInput(t *testing.T) {
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err := execInput(" ")
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if err != nil {
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t.Errorf("expected nil for whitespace input, got %v", err)
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}
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}
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func TestErrNoPath(t *testing.T) {
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if ErrNoPath.Error() != "path required" {
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t.Errorf("expected 'path required', got '%s'", ErrNoPath.Error())
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}
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}
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// =============================================================================
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// Integration tests using subprocess (minimal, run sequentially)
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// =============================================================================
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func TestShell_EndToEnd(t *testing.T) {
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// Test basic shell interaction
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tests := []struct {
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name string
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input string
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expectOutput string
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expectError bool
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}{
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{"echo simple", "echo hello\nquit\n", "hello", false},
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{"echo quoted", "echo 'hello world'\nquit\n", "hello world", false},
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{"pwd", "pwd\nquit\n", "", false}, // pwd output depends on current dir
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{"cd to home", "cd\npwd\nquit\n", "", false},
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{"cd with tilde", "cd ~\npwd\nquit\n", "", false},
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{"quit", "quit\n", "", false},
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{"exit", "exit\n", "", false},
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}
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for _, tc := range tests {
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t.Run(tc.name, func(t *testing.T) {
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cmd := exec.Command("go", "run", "main.go")
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cmd.Stdin = strings.NewReader(tc.input)
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var stdout, stderr bytes.Buffer
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cmd.Stdout = &stdout
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cmd.Stderr = &stderr
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_ = cmd.Run()
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output := stdout.String()
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if tc.expectOutput != "" && !strings.Contains(output, tc.expectOutput) {
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t.Errorf("%s: expected output to contain '%s', got: %s", tc.name, tc.expectOutput, output)
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}
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if tc.expectError {
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combined := output + stderr.String()
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if !strings.Contains(combined, "path required") &&
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!strings.Contains(combined, "error") {
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t.Errorf("%s: expected error, got stdout: %s, stderr: %s", tc.name, output, stderr.String())
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}
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}
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})
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}
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}
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// =============================================================================
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// Tests for Phase 1.2: Graceful Ctrl+D and Ctrl+C handling
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// =============================================================================
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func TestShell_EOF_ExitsGracefully(t *testing.T) {
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// Simulate EOF by sending empty input
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// Note: When using piped input, readline doesn't print prompts
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// So we just verify the shell exits cleanly
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cmd := exec.Command("go", "run", "main.go")
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cmd.Stdin = strings.NewReader("")
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var stdout, stderr bytes.Buffer
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cmd.Stdout = &stdout
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cmd.Stderr = &stderr
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err := cmd.Run()
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// Shell should exit cleanly on EOF
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if err != nil {
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t.Logf("Shell exited with: %v", err)
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}
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// When using piped input, readline doesn't print prompts
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// So we just check that it exited cleanly
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_ = stdout.String()
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}
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func TestShell_EOF_AfterCommand(t *testing.T) {
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// Test that EOF after a command works
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// Note: When using piped input, readline doesn't print prompts
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cmd := exec.Command("go", "run", "main.go")
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cmd.Stdin = strings.NewReader("echo test\n")
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var stdout, stderr bytes.Buffer
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cmd.Stdout = &stdout
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cmd.Stderr = &stderr
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err := cmd.Run()
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if err != nil {
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t.Logf("Shell exited with: %v", err)
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}
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output := stdout.String()
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// Should contain the echo output
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if !strings.Contains(output, "test") {
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t.Errorf("expected 'test' in output, got: %s", output)
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}
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// Note: With piped input, readline doesn't print prompts
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// In a real TTY, the prompt would be shown
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}
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func TestShell_SIGINT_HandlerSetup(t *testing.T) {
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// This test verifies that the shell doesn't panic when receiving signals
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// We can't easily test SIGINT handling from a test, but we can verify
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// the shell runs without crashing
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cmd := exec.Command("go", "run", "main.go")
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cmd.Stdin = strings.NewReader("echo test\nquit\n")
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var stdout, stderr bytes.Buffer
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cmd.Stdout = &stdout
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cmd.Stderr = &stderr
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err := cmd.Run()
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if err != nil {
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t.Logf("Shell exited with: %v, stderr: %s", err, stderr.String())
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}
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output := stdout.String()
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if !strings.Contains(output, "test") {
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t.Errorf("expected 'test' in output, got: %s", output)
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}
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}
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// =============================================================================
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// Tests for Phase 1.3: cd to home, ~ expansion, cd -
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// =============================================================================
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func TestExecInput_CdToHomeWithTilde(t *testing.T) {
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origDir, _ := os.Getwd()
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defer os.Chdir(origDir)
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// Test cd ~
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err := execInput("cd ~")
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if err != nil {
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t.Errorf("cd ~ failed: %v", err)
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}
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home := getHomeDir()
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newDir, _ := os.Getwd()
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if newDir != home {
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t.Errorf("expected to be in home dir %s, but in %s", home, newDir)
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}
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}
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func TestExecInput_CdWithTildePath(t *testing.T) {
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origDir, _ := os.Getwd()
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defer os.Chdir(origDir)
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// Test cd ~/ (this should go to home)
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// But we can't easily test this without knowing the home structure
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// So let's just test that tilde expansion doesn't cause errors
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err := execInput("cd ~")
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if err != nil {
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t.Errorf("cd ~ failed: %v", err)
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}
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}
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func TestExecInput_CdDash(t *testing.T) {
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origDir, _ := os.Getwd()
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defer os.Chdir(origDir)
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// First, cd to a temp dir
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tmpDir := t.TempDir()
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err := execInput("cd " + tmpDir)
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if err != nil {
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t.Fatalf("cd to tmpDir failed: %v", err)
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}
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// Now cd - should go back
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err = execInput("cd -")
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if err != nil {
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t.Fatalf("cd - failed: %v", err)
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}
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// Verify we're back in origDir
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newDir, _ := os.Getwd()
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if newDir != origDir {
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t.Errorf("cd -: expected to be in %s, but in %s", origDir, newDir)
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}
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}
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func TestExecInput_CdDashNoPrevious(t *testing.T) {
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// Reset previousDir for this test
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origPrevDir := previousDir
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defer func() { previousDir = origPrevDir }()
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previousDir = ""
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// cd - with no previous directory should return an error
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err := execInput("cd -")
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if err == nil {
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t.Error("cd - with no previous directory: expected error, got nil")
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}
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if !strings.Contains(err.Error(), "no previous directory") {
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t.Errorf("expected 'no previous directory' error, got: %v", err)
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}
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}
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// =============================================================================
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// Tests for Phase 2.1: Dynamic Prompt
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// =============================================================================
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func TestGetPrompt_Format(t *testing.T) {
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prompt := getPrompt()
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// Should contain username@hostname:path $ pattern
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if !strings.Contains(prompt, "@") {
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t.Errorf("expected @ in prompt, got: %s", prompt)
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}
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if !strings.Contains(prompt, ":") {
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t.Errorf("expected : in prompt, got: %s", prompt)
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}
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if !strings.Contains(prompt, "$") {
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t.Errorf("expected $ in prompt, got: %s", prompt)
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}
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}
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func TestGetPrompt_IncludesHome(t *testing.T) {
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// Save and restore current directory
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origDir, _ := os.Getwd()
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defer os.Chdir(origDir)
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// Change to home directory
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os.Chdir(getHomeDir())
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prompt := getPrompt()
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// When in home, should show ~
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if !strings.Contains(prompt, "~") {
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t.Errorf("expected ~ in prompt when in home dir, got: %s", prompt)
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}
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}
|
|
|
|
// =============================================================================
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|
// Tests for Phase 2.2: Exit Status Code
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// =============================================================================
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|
|
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func TestExecInput_ExitWithStatusCode(t *testing.T) {
|
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// We can't easily test os.Exit from a unit test
|
|
// So we just verify the function doesn't panic with a status code
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// The actual exit behavior is tested in integration tests
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|
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// This test just documents the expected behavior
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// Actual testing requires subprocess
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_ = true // Placeholder - integration tests handle this
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}
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|
|
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func TestShell_ExitWithStatusCode(t *testing.T) {
|
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// Test exit with custom status code
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// Note: We build the binary first because 'go run' doesn't preserve exit codes properly
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tests := []struct {
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input string
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|
expected int
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}{
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{"exit\n", 0},
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{"exit 0\n", 0},
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{"exit 1\n", 1},
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{"exit 42\n", 42},
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{"quit\n", 0},
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{"quit 0\n", 0},
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{"quit 5\n", 5},
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}
|
|
|
|
// Build the binary once
|
|
build := exec.Command("go", "build", "-o", "gosh_test", "main.go")
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if err := build.Run(); err != nil {
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t.Fatalf("failed to build: %v", err)
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}
|
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defer os.Remove("gosh_test")
|
|
|
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for _, tc := range tests {
|
|
t.Run(tc.input, func(t *testing.T) {
|
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cmd := exec.Command("./gosh_test")
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cmd.Stdin = strings.NewReader(tc.input)
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|
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err := cmd.Run()
|
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if err == nil && tc.expected != 0 {
|
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t.Errorf("expected non-zero exit code %d, got 0", tc.expected)
|
|
}
|
|
if err != nil {
|
|
// Check the exit code
|
|
if exitErr, ok := err.(*exec.ExitError); ok {
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actualCode := exitErr.ExitCode()
|
|
if actualCode != tc.expected {
|
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t.Errorf("expected exit code %d, got %d", tc.expected, actualCode)
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}
|
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} else {
|
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// Not an ExitError, might be another error
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t.Logf("got error: %v", err)
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}
|
|
}
|
|
})
|
|
}
|
|
}
|
|
|
|
// =============================================================================
|
|
// Tests for Phase 2.3: Environment Variable Expansion
|
|
// =============================================================================
|
|
|
|
func TestShell_EnvExpansion_Home(t *testing.T) {
|
|
cmd := exec.Command("go", "run", "main.go")
|
|
cmd.Stdin = strings.NewReader("echo $HOME\nexit\n")
|
|
var stdout, stderr bytes.Buffer
|
|
cmd.Stdout = &stdout
|
|
cmd.Stderr = &stderr
|
|
|
|
err := cmd.Run()
|
|
if err != nil {
|
|
t.Logf("shell exited with: %v, stderr: %s", err, stderr.String())
|
|
}
|
|
|
|
output := stdout.String()
|
|
home := getHomeDir()
|
|
if !strings.Contains(output, home) {
|
|
t.Errorf("expected home dir %s in output, got: %s", home, output)
|
|
}
|
|
}
|
|
|
|
func TestShell_EnvExpansion_Path(t *testing.T) {
|
|
cmd := exec.Command("go", "run", "main.go")
|
|
cmd.Stdin = strings.NewReader("echo $PATH\nexit\n")
|
|
var stdout, stderr bytes.Buffer
|
|
cmd.Stdout = &stdout
|
|
cmd.Stderr = &stderr
|
|
|
|
err := cmd.Run()
|
|
if err != nil {
|
|
t.Logf("shell exited with: %v, stderr: %s", err, stderr.String())
|
|
}
|
|
|
|
output := stdout.String()
|
|
// PATH should contain : (path separator)
|
|
if !strings.Contains(output, ":") {
|
|
t.Errorf("expected PATH with : separator in output, got: %s", output)
|
|
}
|
|
}
|
|
|
|
func TestShell_EnvExpansion_Braces(t *testing.T) {
|
|
cmd := exec.Command("go", "run", "main.go")
|
|
cmd.Stdin = strings.NewReader("echo ${HOME}\nexit\n")
|
|
var stdout, stderr bytes.Buffer
|
|
cmd.Stdout = &stdout
|
|
cmd.Stderr = &stderr
|
|
|
|
err := cmd.Run()
|
|
if err != nil {
|
|
t.Logf("shell exited with: %v, stderr: %s", err, stderr.String())
|
|
}
|
|
|
|
output := stdout.String()
|
|
home := getHomeDir()
|
|
if !strings.Contains(output, home) {
|
|
t.Errorf("expected home dir %s in output with ${HOME}, got: %s", home, output)
|
|
}
|
|
}
|
|
|
|
func TestShell_EnvExpansion_CdWithVar(t *testing.T) {
|
|
cmd := exec.Command("go", "run", "main.go")
|
|
cmd.Stdin = strings.NewReader("cd $HOME\npwd\nexit\n")
|
|
var stdout, stderr bytes.Buffer
|
|
cmd.Stdout = &stdout
|
|
cmd.Stderr = &stderr
|
|
|
|
err := cmd.Run()
|
|
if err != nil {
|
|
t.Logf("shell exited with: %v, stderr: %s", err, stderr.String())
|
|
}
|
|
|
|
output := stdout.String()
|
|
home := getHomeDir()
|
|
if !strings.Contains(output, home) {
|
|
t.Errorf("expected home dir %s in pwd output, got: %s", home, output)
|
|
}
|
|
}
|
|
|
|
func TestShell_TildeExpansion_Ls(t *testing.T) {
|
|
cmd := exec.Command("go", "run", "main.go")
|
|
cmd.Stdin = strings.NewReader("ls ~\nexit\n")
|
|
var stdout, stderr bytes.Buffer
|
|
cmd.Stdout = &stdout
|
|
cmd.Stderr = &stderr
|
|
|
|
err := cmd.Run()
|
|
if err != nil {
|
|
t.Logf("shell exited with: %v, stderr: %s", err, stderr.String())
|
|
}
|
|
|
|
output := stdout.String()
|
|
// Should contain files from home directory
|
|
// We can't predict exact files, but it should have some output
|
|
if strings.TrimSpace(output) == "" {
|
|
t.Errorf("expected output from ls ~, got empty")
|
|
}
|
|
}
|
|
|
|
// =============================================================================
|
|
// Tests for Phase 2.5, 2.6, 2.7: set/export commands, help
|
|
// =============================================================================
|
|
|
|
func TestExecInput_SetEnvVar(t *testing.T) {
|
|
// Save original value
|
|
orig := os.Getenv("GOSH_TEST_VAR")
|
|
defer os.Setenv("GOSH_TEST_VAR", orig)
|
|
|
|
// Set a new variable
|
|
err := execInput("set GOSH_TEST_VAR=test_value")
|
|
if err != nil {
|
|
t.Errorf("set failed: %v", err)
|
|
}
|
|
|
|
// Verify it was set
|
|
val := os.Getenv("GOSH_TEST_VAR")
|
|
if val != "test_value" {
|
|
t.Errorf("expected 'test_value', got '%s'", val)
|
|
}
|
|
}
|
|
|
|
func TestExecInput_ExportEnvVar(t *testing.T) {
|
|
// Save original value
|
|
orig := os.Getenv("GOSH_TEST_VAR2")
|
|
defer os.Setenv("GOSH_TEST_VAR2", orig)
|
|
|
|
// Export a new variable
|
|
err := execInput("export GOSH_TEST_VAR2=exported_value")
|
|
if err != nil {
|
|
t.Errorf("export failed: %v", err)
|
|
}
|
|
|
|
// Verify it was set
|
|
val := os.Getenv("GOSH_TEST_VAR2")
|
|
if val != "exported_value" {
|
|
t.Errorf("expected 'exported_value', got '%s'", val)
|
|
}
|
|
}
|
|
|
|
func TestExecInput_SetNoArgs(t *testing.T) {
|
|
err := execInput("set")
|
|
if err == nil {
|
|
t.Error("expected error for set with no args, got nil")
|
|
}
|
|
if !strings.Contains(err.Error(), "usage: set VAR=value") {
|
|
t.Errorf("expected usage error, got: %v", err)
|
|
}
|
|
}
|
|
|
|
func TestExecInput_ExportNoArgs(t *testing.T) {
|
|
err := execInput("export")
|
|
if err == nil {
|
|
t.Error("expected error for export with no args, got nil")
|
|
}
|
|
if !strings.Contains(err.Error(), "usage: export VAR=value") {
|
|
t.Errorf("expected usage error, got: %v", err)
|
|
}
|
|
}
|
|
|
|
func TestExecInput_Help(t *testing.T) {
|
|
// Just verify help doesn't return an error
|
|
// We can't easily capture stdout in a unit test without a pipe
|
|
// but we can verify it doesn't crash
|
|
err := execInput("help")
|
|
if err != nil {
|
|
t.Errorf("help failed: %v", err)
|
|
}
|
|
// If we get here without panicking, help command works
|
|
}
|
|
|
|
// =============================================================================
|
|
// Tests for Command Completion (Phase 3: Tab Completion)
|
|
// =============================================================================
|
|
|
|
func TestFilePathCompleter_CurrentDirectory(t *testing.T) {
|
|
// Save and restore current directory
|
|
origDir, _ := os.Getwd()
|
|
defer os.Chdir(origDir)
|
|
|
|
// Create a temp directory with known files
|
|
tmpDir := t.TempDir()
|
|
os.Chdir(tmpDir)
|
|
|
|
// Create test files and directories
|
|
os.Create("file_a.txt")
|
|
os.Create("file_b.txt")
|
|
os.Create("file_c.txt")
|
|
os.Mkdir("dir_a", 0755)
|
|
os.Mkdir("dir_b", 0755)
|
|
|
|
// Test completion for "ls file_"
|
|
// Extract the prefix (last word after space)
|
|
line := "ls file_"
|
|
prefix := "file_"
|
|
matches := completeFilePath(line, prefix)
|
|
if len(matches) == 0 {
|
|
t.Error("expected matches for 'ls file_', got none")
|
|
}
|
|
|
|
// All matches should contain "file_"
|
|
for _, m := range matches {
|
|
if !strings.Contains(m, "file_") {
|
|
t.Errorf("match %s doesn't contain 'file_'", m)
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestFilePathCompleter_AbsolutePath(t *testing.T) {
|
|
// Create a temp directory with known structure
|
|
tmpDir := t.TempDir()
|
|
os.Mkdir(filepath.Join(tmpDir, "testdir"), 0755)
|
|
os.Create(filepath.Join(tmpDir, "testdir", "file1.txt"))
|
|
os.Create(filepath.Join(tmpDir, "testdir", "file2.txt"))
|
|
|
|
// Test completion for absolute path
|
|
line := "ls " + tmpDir + "/te"
|
|
prefix := tmpDir + "/te"
|
|
matches := completeFilePath(line, prefix)
|
|
if len(matches) == 0 {
|
|
t.Error("expected matches for absolute path, got none")
|
|
}
|
|
|
|
// All matches should contain "testdir"
|
|
found := false
|
|
for _, m := range matches {
|
|
if strings.Contains(m, "testdir") {
|
|
found = true
|
|
break
|
|
}
|
|
}
|
|
if !found {
|
|
t.Errorf("expected match containing 'testdir', got: %v", matches)
|
|
}
|
|
}
|
|
|
|
func TestFilePathCompleter_TildeExpansion(t *testing.T) {
|
|
// Save and restore current directory
|
|
origDir, _ := os.Getwd()
|
|
defer os.Chdir(origDir)
|
|
|
|
home := getHomeDir()
|
|
if home == "" {
|
|
t.Skip("skipping: HOME directory not available")
|
|
}
|
|
|
|
// Create a test file in home if possible
|
|
// (we can't always write to home, so we'll just test the completer logic)
|
|
matches := completeFilePath("ls ~/", "~/")
|
|
// Just verify it doesn't panic - actual matches depend on home directory contents
|
|
_ = matches
|
|
}
|
|
|
|
func TestFilePathCompleter_DirectoriesWithTrailingSlash(t *testing.T) {
|
|
// Save and restore current directory
|
|
origDir, _ := os.Getwd()
|
|
defer os.Chdir(origDir)
|
|
|
|
tmpDir := t.TempDir()
|
|
os.Chdir(tmpDir)
|
|
|
|
// Create a subdirectory
|
|
os.Mkdir("subdir", 0755)
|
|
os.Create("subdir/file.txt")
|
|
|
|
// Test completion when the prefix already has a trailing slash
|
|
matches := completeFilePath("ls subdir/", "subdir/")
|
|
if len(matches) == 0 {
|
|
t.Error("expected matches for 'ls subdir/', got none")
|
|
}
|
|
|
|
// Matches should include the file in the subdirectory
|
|
found := false
|
|
for _, m := range matches {
|
|
if strings.Contains(m, "file.txt") {
|
|
found = true
|
|
break
|
|
}
|
|
}
|
|
if !found {
|
|
t.Errorf("expected match containing 'file.txt', got: %v", matches)
|
|
}
|
|
}
|
|
|
|
func TestFilePathCompleter_NoMatches(t *testing.T) {
|
|
// Save and restore current directory
|
|
origDir, _ := os.Getwd()
|
|
defer os.Chdir(origDir)
|
|
|
|
tmpDir := t.TempDir()
|
|
os.Chdir(tmpDir)
|
|
|
|
// Test completion for a prefix that won't match anything
|
|
matches := completeFilePath("ls xyz_nonexistent_", "xyz_nonexistent_")
|
|
if len(matches) != 0 {
|
|
t.Errorf("expected no matches for non-existent prefix, got: %v", matches)
|
|
}
|
|
}
|
|
|
|
// completeLine runs the completer on line (cursor at the end) and returns the
|
|
// candidates as strings together with the reported length.
|
|
func completeLine(line string) ([]string, int) {
|
|
cands, length := newShellCompleter().Do([]rune(line), len([]rune(line)))
|
|
var out []string
|
|
for _, c := range cands {
|
|
out = append(out, string(c))
|
|
}
|
|
sort.Strings(out)
|
|
return out, length
|
|
}
|
|
|
|
func TestShellCompleter_Do(t *testing.T) {
|
|
origDir, _ := os.Getwd()
|
|
defer os.Chdir(origDir)
|
|
|
|
tmpDir := t.TempDir()
|
|
os.Chdir(tmpDir)
|
|
os.Create("main.go")
|
|
os.Create("my file.txt")
|
|
os.Create(".hidden")
|
|
os.Mkdir("subdir", 0755)
|
|
os.Create("subdir/inner.txt")
|
|
|
|
// Controlled PATH with one executable, one non-executable and a
|
|
// duplicate of a builtin
|
|
binDir := t.TempDir()
|
|
os.WriteFile(filepath.Join(binDir, "gitty"), nil, 0755)
|
|
os.WriteFile(filepath.Join(binDir, "girl"), nil, 0644)
|
|
os.WriteFile(filepath.Join(binDir, "echo"), nil, 0755)
|
|
os.Mkdir(filepath.Join(binDir, "gidir"), 0755)
|
|
t.Setenv("PATH", binDir)
|
|
|
|
tests := []struct {
|
|
line string
|
|
want []string
|
|
length int
|
|
}{
|
|
{"c", []string{"d "}, 1},
|
|
{"e", []string{"cho ", "xit ", "xport "}, 1},
|
|
{"gi", []string{"tty "}, 2},
|
|
{" gi", []string{"tty "}, 2},
|
|
{"ls gi", nil, 2},
|
|
{"ls ma", []string{"in.go"}, 2},
|
|
{"ls su", []string{"bdir/"}, 2},
|
|
{"ls subdir/", []string{"inner.txt"}, 0},
|
|
{"ls subdir/in", []string{"ner.txt"}, 2},
|
|
{"ls my", []string{`\ file.txt`}, 2},
|
|
{`ls my\ f`, []string{"ile.txt"}, 4},
|
|
{`ls "my f`, []string{"ile.txt"}, 4},
|
|
{"ls ./ma", []string{"in.go"}, 2},
|
|
{"ls .h", []string{"idden"}, 2},
|
|
{"ls ", []string{"main.go", `my\ file.txt`, "subdir/"}, 0},
|
|
{"ls " + tmpDir + "/ma", []string{"in.go"}, 2},
|
|
{"ls xyz", nil, 3},
|
|
{"ls ~", []string{"/"}, 1},
|
|
}
|
|
for _, tt := range tests {
|
|
got, length := completeLine(tt.line)
|
|
if !reflect.DeepEqual(got, tt.want) || length != tt.length {
|
|
t.Errorf("Do(%q) = %q, %d; want %q, %d", tt.line, got, length, tt.want, tt.length)
|
|
}
|
|
}
|
|
}
|
|
|
|
// =============================================================================
|
|
// Security fixes: history file, quoting/expansion, escape sequences, SIGINT
|
|
// =============================================================================
|
|
|
|
// TestMain keeps the integration tests (which run the shell as a subprocess)
|
|
// from writing into the user's real history file.
|
|
func TestMain(m *testing.M) {
|
|
dir, err := os.MkdirTemp("", "gosh-test-")
|
|
if err != nil {
|
|
panic(err)
|
|
}
|
|
os.Setenv("GOSH_HISTFILE", filepath.Join(dir, "history"))
|
|
code := m.Run()
|
|
os.RemoveAll(dir)
|
|
os.Exit(code)
|
|
}
|
|
|
|
// buildShell builds the shell into a temporary directory and returns its path
|
|
func buildShell(t *testing.T) string {
|
|
t.Helper()
|
|
bin := filepath.Join(t.TempDir(), "gosh")
|
|
if out, err := exec.Command("go", "build", "-o", bin, ".").CombinedOutput(); err != nil {
|
|
t.Fatalf("failed to build: %v\n%s", err, out)
|
|
}
|
|
return bin
|
|
}
|
|
|
|
func TestSplitWords(t *testing.T) {
|
|
t.Setenv("GOSH_A", "a b")
|
|
t.Setenv("GOSH_EMPTY", "")
|
|
t.Setenv("GOSH_TILDE", "~/x")
|
|
os.Unsetenv("GOSH_UNSET")
|
|
home := getHomeDir()
|
|
|
|
tests := []struct {
|
|
input string
|
|
want []string
|
|
}{
|
|
{`echo hello world`, []string{"echo", "hello", "world"}},
|
|
{`echo 'hello world'`, []string{"echo", "hello world"}},
|
|
{`echo "hello \"world\""`, []string{"echo", `hello "world"`}},
|
|
{`echo file\ with\ spaces`, []string{"echo", "file with spaces"}},
|
|
{`echo '' ""`, []string{"echo", "", ""}},
|
|
{`echo a # comment`, []string{"echo", "a"}},
|
|
{`echo a#b`, []string{"echo", "a#b"}},
|
|
// No expansion inside single quotes
|
|
{`echo '$GOSH_A'`, []string{"echo", "$GOSH_A"}},
|
|
{`grep 'foo$'`, []string{"grep", "foo$"}},
|
|
{`echo '$GOSH_UNSET/out'`, []string{"echo", "$GOSH_UNSET/out"}},
|
|
// Expansion outside of and inside double quotes, never word splitting
|
|
{`echo $GOSH_A`, []string{"echo", "a b"}},
|
|
{`echo "${GOSH_A}c"`, []string{"echo", "a bc"}},
|
|
{`echo x${GOSH_A}y`, []string{"echo", "xa by"}},
|
|
// Escaped and lone dollar signs stay literal
|
|
{`echo \$GOSH_A "\$GOSH_A"`, []string{"echo", "$GOSH_A", "$GOSH_A"}},
|
|
{`echo $ 5$ $1`, []string{"echo", "$", "5$", "$1"}},
|
|
// Backslash in double quotes only escapes $ " \ and `
|
|
{`echo "a\nb\\c"`, []string{"echo", `a\nb\c`}},
|
|
// Defaults
|
|
{`echo ${GOSH_UNSET:-def} ${GOSH_EMPTY:-def} ${GOSH_A:-def}`, []string{"echo", "def", "def", "a b"}},
|
|
{`echo ${GOSH_UNSET:-}x`, []string{"echo", "x"}},
|
|
// Unquoted empty expansions vanish, quoted ones are kept
|
|
{`echo $GOSH_EMPTY x`, []string{"echo", "x"}},
|
|
{`echo "$GOSH_EMPTY" x`, []string{"echo", "", "x"}},
|
|
// Tilde only at the start of an unquoted word, not from variables
|
|
{`ls ~ ~/x a~ '~' "~/x" \~`, []string{"ls", home, filepath.Join(home) + "/x", "a~", "~", "~/x", "~"}},
|
|
{`ls ~root`, []string{"ls", "~root"}},
|
|
{`ls $GOSH_TILDE`, []string{"ls", "~/x"}},
|
|
}
|
|
for _, tc := range tests {
|
|
t.Run(tc.input, func(t *testing.T) {
|
|
got, err := splitWords(tc.input)
|
|
if err != nil {
|
|
t.Fatalf("unexpected error: %v", err)
|
|
}
|
|
if !reflect.DeepEqual(got, tc.want) {
|
|
t.Errorf("got %q, want %q", got, tc.want)
|
|
}
|
|
})
|
|
}
|
|
}
|
|
|
|
func TestSplitWords_Errors(t *testing.T) {
|
|
os.Unsetenv("GOSH_UNSET")
|
|
tests := []struct {
|
|
input string
|
|
wantErr string
|
|
}{
|
|
{`rm -rf $GOSH_UNSET/out`, "GOSH_UNSET: unbound variable"},
|
|
{`rm -rf "${GOSH_UNSET}/out"`, "GOSH_UNSET: unbound variable"},
|
|
{`echo 'unclosed`, "unterminated ' quote"},
|
|
{`echo "unclosed`, `unterminated " quote`},
|
|
{`echo foo\`, "unexpected end of input"},
|
|
{`echo ${GOSH_UNSET`, "missing }"},
|
|
{`echo ${}`, "bad substitution"},
|
|
{`echo ${1x}`, "bad substitution"},
|
|
}
|
|
for _, tc := range tests {
|
|
t.Run(tc.input, func(t *testing.T) {
|
|
got, err := splitWords(tc.input)
|
|
if err == nil {
|
|
t.Fatalf("expected error, got %q", got)
|
|
}
|
|
if !strings.Contains(err.Error(), tc.wantErr) {
|
|
t.Errorf("expected error containing %q, got %q", tc.wantErr, err)
|
|
}
|
|
})
|
|
}
|
|
}
|
|
|
|
func TestExecInput_UnsetVariableDoesNotRun(t *testing.T) {
|
|
os.Unsetenv("GOSH_UNSET")
|
|
marker := filepath.Join(t.TempDir(), "marker")
|
|
|
|
// Without the fix this would have run "touch /marker"-like commands
|
|
err := execInput("touch $GOSH_UNSET" + marker)
|
|
if err == nil || !strings.Contains(err.Error(), "unbound variable") {
|
|
t.Fatalf("expected unbound variable error, got %v", err)
|
|
}
|
|
if _, err := os.Stat(marker); err == nil {
|
|
t.Errorf("command was executed despite unset variable")
|
|
}
|
|
}
|
|
|
|
func TestExecInput_SingleQuotedDollarIsLiteral(t *testing.T) {
|
|
dir := t.TempDir()
|
|
t.Setenv("GOSH_X", "expanded")
|
|
|
|
if err := execInput("touch '" + dir + "/$GOSH_X'"); err != nil {
|
|
t.Fatalf("touch failed: %v", err)
|
|
}
|
|
if _, err := os.Stat(filepath.Join(dir, "$GOSH_X")); err != nil {
|
|
t.Errorf("expected literal file name $GOSH_X: %v", err)
|
|
}
|
|
}
|
|
|
|
func TestSanitize(t *testing.T) {
|
|
tests := []struct{ in, want string }{
|
|
{"plain/path äöü", "plain/path äöü"},
|
|
{"evil\x1b]0;title\x07", `evil\x1b]0;title\x07`},
|
|
{"a\nb\tc", `a\x0ab\x09c`},
|
|
{"bad\xffutf8", `bad\xffutf8`},
|
|
{"bidi\u202eoverride", `bidi\u202eoverride`},
|
|
}
|
|
for _, tc := range tests {
|
|
if got := sanitize(tc.in); got != tc.want {
|
|
t.Errorf("sanitize(%q) = %q, want %q", tc.in, got, tc.want)
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestGetPrompt_EscapesControlCharacters(t *testing.T) {
|
|
t.Setenv("NO_COLOR", "1")
|
|
origDir, _ := os.Getwd()
|
|
defer os.Chdir(origDir)
|
|
|
|
dir := filepath.Join(t.TempDir(), "evil\x1b[2J\x1b]52;c;cHduZWQ=\x07")
|
|
if err := os.Mkdir(dir, 0755); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
if err := os.Chdir(dir); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
prompt := getPrompt()
|
|
if strings.ContainsAny(prompt, "\x1b\x07") {
|
|
t.Errorf("prompt contains control characters: %q", prompt)
|
|
}
|
|
if !strings.Contains(prompt, `evil\x1b[2J`) {
|
|
t.Errorf("expected escaped directory name in prompt, got %q", prompt)
|
|
}
|
|
}
|
|
|
|
func TestBuildPrompt_Color(t *testing.T) {
|
|
got := buildPrompt("flow", "host", "~/src", false, true)
|
|
want := colorUser + "flow@host" + colorReset + ":" + colorPath + "~/src" + colorReset + " $ "
|
|
if got != want {
|
|
t.Errorf("buildPrompt() = %q, want %q", got, want)
|
|
}
|
|
|
|
got = buildPrompt("root", "host", "/", true, true)
|
|
if !strings.HasPrefix(got, colorRoot+"root@host") {
|
|
t.Errorf("expected red user for root, got %q", got)
|
|
}
|
|
|
|
got = buildPrompt("flow", "host", "~/src", false, false)
|
|
if got != "flow@host:~/src $ " {
|
|
t.Errorf("buildPrompt() without color = %q", got)
|
|
}
|
|
}
|
|
|
|
func TestBuildPrompt_ColorEscapesControlCharacters(t *testing.T) {
|
|
got := buildPrompt("flow", "host", "evil\x1b[2J\x07", false, true)
|
|
if strings.Contains(got, "\x1b[2J") || strings.Contains(got, "\x07") {
|
|
t.Errorf("prompt contains control characters from path: %q", got)
|
|
}
|
|
if !strings.Contains(got, `evil\x1b[2J\x07`) {
|
|
t.Errorf("expected escaped path in prompt, got %q", got)
|
|
}
|
|
}
|
|
|
|
func TestUseColor_NoColor(t *testing.T) {
|
|
t.Setenv("NO_COLOR", "1")
|
|
if useColor() {
|
|
t.Error("expected no color when NO_COLOR is set")
|
|
}
|
|
}
|
|
|
|
func TestFilePathCompleter_SkipsControlCharacters(t *testing.T) {
|
|
dir := t.TempDir()
|
|
for _, name := range []string{"good", "go\x1b[31mred"} {
|
|
if err := os.WriteFile(filepath.Join(dir, name), nil, 0644); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
}
|
|
|
|
matches := completeFilePath("", dir+"/go")
|
|
if !reflect.DeepEqual(matches, []string{"good"}) {
|
|
t.Errorf("expected only [good], got %q", matches)
|
|
}
|
|
}
|
|
|
|
func TestHistoryFile(t *testing.T) {
|
|
t.Setenv("GOSH_HISTFILE", "/custom/history")
|
|
if got := historyFile(); got != "/custom/history" {
|
|
t.Errorf("expected $GOSH_HISTFILE, got %q", got)
|
|
}
|
|
|
|
os.Unsetenv("GOSH_HISTFILE")
|
|
t.Setenv("XDG_STATE_HOME", "/state")
|
|
if got := historyFile(); got != "/state/gosh/history" {
|
|
t.Errorf("expected /state/gosh/history, got %q", got)
|
|
}
|
|
|
|
t.Setenv("XDG_STATE_HOME", "")
|
|
want := filepath.Join(getHomeDir(), ".local", "state", "gosh", "history")
|
|
if got := historyFile(); got != want {
|
|
t.Errorf("expected %q, got %q", want, got)
|
|
}
|
|
|
|
// Never relative to the current directory
|
|
if !filepath.IsAbs(historyFile()) {
|
|
t.Errorf("history file must be an absolute path, got %q", historyFile())
|
|
}
|
|
}
|
|
|
|
func TestPrepareHistoryFile_Permissions(t *testing.T) {
|
|
dir := filepath.Join(t.TempDir(), "state", "gosh")
|
|
path := filepath.Join(dir, "history")
|
|
|
|
if err := prepareHistoryFile(path); err != nil {
|
|
t.Fatalf("prepareHistoryFile failed: %v", err)
|
|
}
|
|
if info, _ := os.Stat(dir); info.Mode().Perm() != 0700 {
|
|
t.Errorf("expected directory mode 0700, got %o", info.Mode().Perm())
|
|
}
|
|
if info, _ := os.Stat(path); info.Mode().Perm() != 0600 {
|
|
t.Errorf("expected file mode 0600, got %o", info.Mode().Perm())
|
|
}
|
|
|
|
// Existing files and directories with too open permissions are fixed
|
|
os.Chmod(dir, 0755)
|
|
os.Chmod(path, 0644)
|
|
if err := prepareHistoryFile(path); err != nil {
|
|
t.Fatalf("prepareHistoryFile failed: %v", err)
|
|
}
|
|
if info, _ := os.Stat(dir); info.Mode().Perm() != 0700 {
|
|
t.Errorf("expected directory mode 0700, got %o", info.Mode().Perm())
|
|
}
|
|
if info, _ := os.Stat(path); info.Mode().Perm() != 0600 {
|
|
t.Errorf("expected file mode 0600, got %o", info.Mode().Perm())
|
|
}
|
|
}
|
|
|
|
func TestShell_History(t *testing.T) {
|
|
bin := buildShell(t)
|
|
histFile := filepath.Join(t.TempDir(), "gosh", "history")
|
|
workDir := t.TempDir()
|
|
|
|
cmd := exec.Command(bin)
|
|
cmd.Dir = workDir
|
|
cmd.Env = append(os.Environ(), "GOSH_HISTFILE="+histFile)
|
|
cmd.Stdin = strings.NewReader("echo first\n set SECRET=hunter2\nexit\n")
|
|
if out, err := cmd.CombinedOutput(); err != nil {
|
|
t.Fatalf("shell failed: %v\n%s", err, out)
|
|
}
|
|
|
|
data, err := os.ReadFile(histFile)
|
|
if err != nil {
|
|
t.Fatalf("history file not written: %v", err)
|
|
}
|
|
history := string(data)
|
|
if strings.Count(history, "echo first") != 1 {
|
|
t.Errorf("expected 'echo first' exactly once in history, got %q", history)
|
|
}
|
|
if strings.Contains(history, "hunter2") {
|
|
t.Errorf("line starting with a space must not be saved, got %q", history)
|
|
}
|
|
if info, _ := os.Stat(histFile); info.Mode().Perm() != 0600 {
|
|
t.Errorf("expected history mode 0600, got %o", info.Mode().Perm())
|
|
}
|
|
|
|
// Nothing may be written into the working directory
|
|
if entries, _ := os.ReadDir(workDir); len(entries) != 0 {
|
|
t.Errorf("shell wrote files into the working directory: %v", entries)
|
|
}
|
|
}
|
|
|
|
func TestShell_SIGINTKillsOnlyChild(t *testing.T) {
|
|
bin := buildShell(t)
|
|
|
|
cmd := exec.Command(bin)
|
|
// Own process group, so that we can signal it like the terminal does
|
|
cmd.SysProcAttr = &syscall.SysProcAttr{Setpgid: true}
|
|
stdin, err := cmd.StdinPipe()
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
var stdout bytes.Buffer
|
|
cmd.Stdout = &stdout
|
|
if err := cmd.Start(); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
start := time.Now()
|
|
io.WriteString(stdin, "sleep 10\n")
|
|
time.Sleep(500 * time.Millisecond)
|
|
// Ctrl+C: SIGINT to the whole foreground process group
|
|
syscall.Kill(-cmd.Process.Pid, syscall.SIGINT)
|
|
io.WriteString(stdin, "echo still alive\nexit\n")
|
|
stdin.Close()
|
|
|
|
if err := cmd.Wait(); err != nil {
|
|
t.Errorf("shell did not exit cleanly: %v", err)
|
|
}
|
|
if !strings.Contains(stdout.String(), "still alive") {
|
|
t.Errorf("shell was killed by SIGINT, output: %q", stdout.String())
|
|
}
|
|
if elapsed := time.Since(start); elapsed > 5*time.Second {
|
|
t.Errorf("child was not interrupted (took %v)", elapsed)
|
|
}
|
|
}
|