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package testutil
import (
"os"
"path/filepath"
"testing"
)
// CreateTestDirectory creates a temporary directory structure for testing
func CreateTestDirectory(t *testing.T) string {
t.Helper()
tempDir := t.TempDir()
// Create common test structure
dirs := []string{
"audio",
"images",
"output",
"cache",
}
for _, dir := range dirs {
path := filepath.Join(tempDir, dir)
if err := os.MkdirAll(path, 0755); err != nil {
t.Fatalf("Failed to create test directory %s: %v", path, err)
}
}
return tempDir
}
// CreateTestFile creates a test file with content
func CreateTestFile(t *testing.T, path string, content []byte) {
t.Helper()
dir := filepath.Dir(path)
if err := os.MkdirAll(dir, 0755); err != nil {
t.Fatalf("Failed to create directory for test file: %v", err)
}
if err := os.WriteFile(path, content, 0644); err != nil {
t.Fatalf("Failed to create test file %s: %v", path, err)
}
}
// CreateTestWordDirectory creates a test word directory with standard files
func CreateTestWordDirectory(t *testing.T, baseDir, word string) string {
t.Helper()
wordDir := filepath.Join(baseDir, word)
if err := os.MkdirAll(wordDir, 0755); err != nil {
t.Fatalf("Failed to create word directory: %v", err)
}
// Create standard files
files := map[string]string{
"word.txt": word,
"translation.txt": word + " = test translation",
"phonetic.txt": "test phonetic info",
}
for filename, content := range files {
path := filepath.Join(wordDir, filename)
CreateTestFile(t, path, []byte(content))
}
// Create mock audio file
audioPath := filepath.Join(wordDir, "audio.mp3")
CreateTestFile(t, audioPath, []byte{0xFF, 0xFB, 0x90, 0x00})
// Create mock image file
imagePath := filepath.Join(wordDir, "image.jpg")
CreateTestFile(t, imagePath, []byte{0xFF, 0xD8, 0xFF, 0xE0})
return wordDir
}
// AssertFileExists checks if a file exists
func AssertFileExists(t *testing.T, path string) {
t.Helper()
if _, err := os.Stat(path); os.IsNotExist(err) {
t.Errorf("Expected file to exist: %s", path)
}
}
// AssertFileNotExists checks if a file does not exist
func AssertFileNotExists(t *testing.T, path string) {
t.Helper()
if _, err := os.Stat(path); err == nil {
t.Errorf("Expected file to not exist: %s", path)
}
}
// AssertFileContent checks if a file has expected content
func AssertFileContent(t *testing.T, path string, expected []byte) {
t.Helper()
actual, err := os.ReadFile(path)
if err != nil {
t.Fatalf("Failed to read file %s: %v", path, err)
}
if string(actual) != string(expected) {
t.Errorf("File content mismatch in %s\nExpected: %q\nActual: %q", path, expected, actual)
}
}
// AssertFileContains checks if a file contains a substring
func AssertFileContains(t *testing.T, path string, substring string) {
t.Helper()
content, err := os.ReadFile(path)
if err != nil {
t.Fatalf("Failed to read file %s: %v", path, err)
}
if !contains(string(content), substring) {
t.Errorf("File %s does not contain expected substring: %q", path, substring)
}
}
// contains checks if a string contains a substring
func contains(s, substr string) bool {
return len(s) >= len(substr) && (s == substr || len(substr) == 0 ||
(len(s) > 0 && len(substr) > 0 && findSubstring(s, substr) >= 0))
}
// findSubstring finds the index of substr in s, or -1 if not found
func findSubstring(s, substr string) int {
for i := 0; i <= len(s)-len(substr); i++ {
if s[i:i+len(substr)] == substr {
return i
}
}
return -1
}
// CompareDirectories compares two directories recursively
func CompareDirectories(t *testing.T, dir1, dir2 string) {
t.Helper()
err := filepath.Walk(dir1, func(path string, info os.FileInfo, err error) error {
if err != nil {
return err
}
// Get relative path
relPath, err := filepath.Rel(dir1, path)
if err != nil {
return err
}
// Check if corresponding file exists in dir2
path2 := filepath.Join(dir2, relPath)
info2, err := os.Stat(path2)
if err != nil {
t.Errorf("File missing in second directory: %s", relPath)
return nil
}
// Compare file types
if info.IsDir() != info2.IsDir() {
t.Errorf("File type mismatch for %s", relPath)
return nil
}
// Compare file sizes (for files only)
if !info.IsDir() && info.Size() != info2.Size() {
t.Errorf("File size mismatch for %s: %d vs %d", relPath, info.Size(), info2.Size())
}
return nil
})
if err != nil {
t.Fatalf("Failed to compare directories: %v", err)
}
}
// CaptureOutput captures stdout/stderr during test execution
func CaptureOutput(t *testing.T, f func()) (stdout, stderr string) {
t.Helper()
// Save current stdout/stderr
oldStdout := os.Stdout
oldStderr := os.Stderr
// Create pipes
rOut, wOut, err := os.Pipe()
if err != nil {
t.Fatalf("failed to create stdout pipe: %v", err)
}
rErr, wErr, err := os.Pipe()
if err != nil {
t.Fatalf("failed to create stderr pipe: %v", err)
}
// Redirect stdout/stderr
os.Stdout = wOut
os.Stderr = wErr
// Run function
f()
// Close writers
if err := wOut.Close(); err != nil {
t.Fatalf("failed to close stdout writer: %v", err)
}
if err := wErr.Close(); err != nil {
t.Fatalf("failed to close stderr writer: %v", err)
}
// Read output
outBytes := make([]byte, 1024)
errBytes := make([]byte, 1024)
nOut, _ := rOut.Read(outBytes)
nErr, _ := rErr.Read(errBytes)
// Restore stdout/stderr
os.Stdout = oldStdout
os.Stderr = oldStderr
return string(outBytes[:nOut]), string(errBytes[:nErr])
}
|
