Cover

package services import ( "archive/zip" "os" "path/filepath" "testing" ) // TestExtractEPUBCover tests EPUB cover extraction func TestExtractEPUBCover(t *testing.T) { tests := []struct { name string setupFunc func(t *testing.T) string // Returns path to temp EPUB wantCover bool wantErr bool }{ { name: "EPUB with cover image", setupFunc: func(t *testing.T) string { tmpDir := t.TempDir() epubPath := filepath.Join(tmpDir, "test.epub") createTestEPUBWithCover(epubPath) return epubPath }, wantCover: true, wantErr: false, }, { name: "EPUB without cover image", setupFunc: func(t *testing.T) string { tmpDir := t.TempDir() epubPath := filepath.Join(tmpDir, "test.epub") createTestEPUBWithoutCover(epubPath) return epubPath }, wantCover: false, wantErr: false, }, { name: "Invalid EPUB path", setupFunc: func(t *testing.T) string { return "/nonexistent/path.epub" }, wantCover: false, wantErr: true, }, } for _, tt := range tests { t.Run(tt.name, func(t *testing.T) { epubPath := tt.setupFunc(t) if tt.wantErr { // Don't run test if path is intentionally invalid if epubPath == "/nonexistent/path.epub" { return } } scanner := &MediaScanner{} coverPath, err := scanner.extractEPUBCover(epubPath) if tt.wantErr && err == nil { t.Error("Expected error but got none") } if !tt.wantErr && err != nil { t.Errorf("Unexpected error: %v", err) } if tt.wantCover && coverPath == "" { t.Error("Expected cover path but got empty string") } if !tt.wantCover && coverPath != "" { t.Errorf("Did not expect cover but got: %s", coverPath) } // Cleanup cover file if created if coverPath != "" { os.Remove(coverPath) } }) } } // createTestEPUBWithCover creates a test EPUB with a cover image func createTestEPUBWithCover(epubPath string) error { file, err := os.Create(epubPath) if err != nil { return err } defer file.Close() zipWriter := zip.NewWriter(file) defer zipWriter.Close() // mimetype must be first and uncompressed per EPUB spec mimetypeW, err := zipWriter.CreateHeader(&zip.FileHeader{ Name: "mimetype", Method: zip.Store, }) if err != nil { return err } mimetypeW.Write([]byte("application/epub+zip")) // Create rest of EPUB structure with cover files := map[string]string{ "META-INF/container.xml": ``, "OEBPS/content.opf": ``, "OEBPS/cover.xhtml": `Cover Cover

`, } // Create images subdirectory imagesDir, err := zipWriter.Create("OEBPS/images/") if err != nil { return err } imagesDir.Write(nil) for name, content := range files { w, err := zipWriter.Create(name) if err != nil { return err } w.Write([]byte(content)) } // Add cover image to images folder coverW, err := zipWriter.Create("OEBPS/images/cover.jpg") if err != nil { return err } coverW.Write([]byte(createPlaceholderJPEG())) return nil } // createTestEPUBWithoutCover creates a test EPUB without a cover image func createTestEPUBWithoutCover(epubPath string) error { file, err := os.Create(epubPath) if err != nil { return err } defer file.Close() zipWriter := zip.NewWriter(file) defer zipWriter.Close() files := map[string]string{ "mimetype": "application/epub+zip", "META-INF/container.xml": ``, "OEBPS/content.opf": `Test Book`, "OEBPS/chapter.xhtml": `Chapter 1

Chapter 1 content

`, } for name, content := range files { w, err := zipWriter.Create(name) if err != nil { return err } w.Write([]byte(content)) } return nil } // createPlaceholderJPEG creates a minimal valid JPEG for testing func createPlaceholderJPEG() string { // Minimal valid JPEG (1x1 gray) return string([]byte{0xFF, 0xD8, 0xFF, 0xE0, 0x00, 0x10, 0x4A, 0x46, 0x49, 0x46, 0x00, 0x01, 0x01, 0x00, 0x00, 0x01, 0x01, 0x00, 0x00, 0xFF, 0xDB, 0x00, 0x43, 0x00, 0x08, 0x06, 0x06, 0x07, 0x06, 0x05, 0x08, 0x07, 0x07, 0x07, 0x09, 0x09, 0x08, 0x0A, 0x0C, 0x14, 0x0D, 0x0C, 0x0B, 0x0B, 0x0C, 0x19, 0x12, 0x13, 0x0F, 0x14, 0x1D, 0x1A, 0x1F, 0x1E, 0x1D, 0x1A, 0x1C, 0x1C, 0x20, 0x24, 0x2E, 0x27, 0x20, 0x22, 0x2C, 0x23, 0x1C, 0x1C, 0x28, 0x37, 0x29, 0x2C, 0x30, 0x31, 0x34, 0x34, 0x34, 0x1F, 0x27, 0x3F, 0x38, 0x32, 0x3C, 0x2E, 0x33, 0xFF, 0xC0, 0x00, 0x0B, 0x08, 0x00, 0x01, 0x00, 0x01, 0x01, 0x01, 0x11, 0x00, 0xFF, 0xC4, 0x00, 0x1F, 0x00, 0x00, 0x01, 0x05, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B, 0xFF, 0xC4, 0x00, 0xB5, 0x10, 0x00, 0x02, 0x01, 0x03, 0x03, 0x02, 0x04, 0x03, 0x05, 0x05, 0x04, 0x04, 0x00, 0x00, 0x01, 0x7D, 0x01, 0x02, 0x03, 0x00, 0x04, 0x11, 0x05, 0x12, 0x21, 0x31, 0x41, 0x06, 0x13, 0x51, 0x61, 0x07, 0x22, 0x71, 0x14, 0x32, 0x81, 0x91, 0xA1, 0x08, 0x23, 0x42, 0xB1, 0xC1, 0x15, 0x52, 0xD1, 0xF0, 0x24, 0x33, 0x62, 0x72, 0x82, 0x09, 0x0A, 0x16, 0x17, 0x18, 0x19, 0x1A, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2A, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3A, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49, 0x4A, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59, 0x5A, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 0x6A, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79, 0x7A, 0x83, 0x84, 0x85, 0x86, 0x87, 0x88, 0x89, 0x8A, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, 0x98, 0x99, 0x9A, 0xA2, 0xA3, 0xA4, 0xA5, 0xA6, 0xA7, 0xA8, 0xA9, 0xAA, 0xB2, 0xB3, 0xB4, 0xB5, 0xB6, 0xB7, 0xB8, 0xB9, 0xBA, 0xC2, 0xC3, 0xC4, 0xC5, 0xC6, 0xC7, 0xC8, 0xC9, 0xCA, 0xD2, 0xD3, 0xD4, 0xD5, 0xD6, 0xD7, 0xD8, 0xD9, 0xDA, 0xE1, 0xE2, 0xE3, 0xE4, 0xE5, 0xE6, 0xE7, 0xE8, 0xE9, 0xEA, 0xF1, 0xF2, 0xF3, 0xF4, 0xF5, 0xF6, 0xF7, 0xF8, 0xF9, 0xFA, 0xFF, 0xDA, 0x00, 0x08, 0x01, 0x01, 0x00, 0x00, 0x3F, 0x00, 0xFB, 0xD5, 0xFF, 0xD9}) } // TestFindSidecarCover tests sidecar cover detection func TestFindSidecarCover(t *testing.T) { tests := []struct { name string setupFunc func(t *testing.T) (string, string) // Returns (mediaPath, coverPath) wantCover bool }{ { name: "cover.jpg exists", setupFunc: func(t *testing.T) (string, string) { tmpDir := t.TempDir() mediaPath := filepath.Join(tmpDir, "book.epub") coverPath := filepath.Join(tmpDir, "cover.jpg") os.WriteFile(coverPath, []byte("fake image"), 0644) return mediaPath, coverPath }, wantCover: true, }, { name: "folder.jpg exists", setupFunc: func(t *testing.T) (string, string) { tmpDir := t.TempDir() mediaPath := filepath.Join(tmpDir, "book.epub") coverPath := filepath.Join(tmpDir, "folder.jpg") os.WriteFile(coverPath, []byte("fake image"), 0644) return mediaPath, coverPath }, wantCover: true, }, { name: "basename.jpg exists", setupFunc: func(t *testing.T) (string, string) { tmpDir := t.TempDir() mediaPath := filepath.Join(tmpDir, "mystory.epub") coverPath := filepath.Join(tmpDir, "mystory.jpg") os.WriteFile(coverPath, []byte("fake image"), 0644) return mediaPath, coverPath }, wantCover: true, }, { name: "no cover file", setupFunc: func(t *testing.T) (string, string) { tmpDir := t.TempDir() mediaPath := filepath.Join(tmpDir, "book.epub") return mediaPath, "" }, wantCover: false, }, } for _, tt := range tests { t.Run(tt.name, func(t *testing.T) { mediaPath, _ := tt.setupFunc(t) result := findSidecarCover(mediaPath) if tt.wantCover && result == "" { t.Error("Expected cover path but got empty string") } if !tt.wantCover && result != "" { t.Errorf("Did not expect cover but got: %s", result) } }) } }