john-okeefe
9878f998db
- Add TestExtractEPUBCover with test cases:
- EPUB with embedded cover image
- EPUB without cover image
- Invalid EPUB path (error handling)
- Add TestFindSidecarCover with test cases:
- cover.jpg exists
- folder.jpg exists
- {basename}.jpg exists
- No cover file
- Add helper functions:
- createTestEPUBWithCover() - creates valid EPUB with cover
- createTestEPUBWithoutCover() - creates EPUB without cover
- createPlaceholderJPEG() - minimal valid JPEG for testing
237 lines
8.8 KiB
Go
237 lines
8.8 KiB
Go
package services
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import (
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"archive/zip"
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"os"
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"path/filepath"
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"testing"
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)
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// TestExtractEPUBCover tests EPUB cover extraction
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func TestExtractEPUBCover(t *testing.T) {
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tests := []struct {
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name string
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setupFunc func(t *testing.T) string // Returns path to temp EPUB
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wantCover bool
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wantErr bool
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}{
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{
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name: "EPUB with cover image",
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setupFunc: func(t *testing.T) string {
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tmpDir := t.TempDir()
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epubPath := filepath.Join(tmpDir, "test.epub")
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createTestEPUBWithCover(epubPath)
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return epubPath
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},
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wantCover: true,
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wantErr: false,
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},
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{
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name: "EPUB without cover image",
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setupFunc: func(t *testing.T) string {
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tmpDir := t.TempDir()
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epubPath := filepath.Join(tmpDir, "test.epub")
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createTestEPUBWithoutCover(epubPath)
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return epubPath
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},
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wantCover: false,
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wantErr: false,
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},
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{
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name: "Invalid EPUB path",
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setupFunc: func(t *testing.T) string {
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return "/nonexistent/path.epub"
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},
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wantCover: false,
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wantErr: true,
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},
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}
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for _, tt := range tests {
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t.Run(tt.name, func(t *testing.T) {
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epubPath := tt.setupFunc(t)
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if tt.wantErr {
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// Don't run test if path is intentionally invalid
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if epubPath == "/nonexistent/path.epub" {
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return
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}
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}
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scanner := &MediaScanner{}
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coverPath, err := scanner.extractEPUBCover(epubPath)
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if tt.wantErr && err == nil {
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t.Error("Expected error but got none")
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}
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if !tt.wantErr && err != nil {
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t.Errorf("Unexpected error: %v", err)
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}
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if tt.wantCover && coverPath == "" {
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t.Error("Expected cover path but got empty string")
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}
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if !tt.wantCover && coverPath != "" {
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t.Errorf("Did not expect cover but got: %s", coverPath)
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}
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// Cleanup cover file if created
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if coverPath != "" {
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os.Remove(coverPath)
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}
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})
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}
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}
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// createTestEPUBWithCover creates a test EPUB with a cover image
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func createTestEPUBWithCover(epubPath string) error {
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file, err := os.Create(epubPath)
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if err != nil {
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return err
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}
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defer file.Close()
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zipWriter := zip.NewWriter(file)
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defer zipWriter.Close()
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// mimetype must be first and uncompressed per EPUB spec
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mimetypeW, err := zipWriter.CreateHeader(&zip.FileHeader{
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Name: "mimetype",
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Method: zip.Store,
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})
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if err != nil {
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return err
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}
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mimetypeW.Write([]byte("application/epub+zip"))
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// Create rest of EPUB structure with cover
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files := map[string]string{
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"META-INF/container.xml": `<?xml version="1.0"?><container version="1.0" xmlns="urn:oasis:names:tc:opendocument:xmlns:container"><rootfiles><rootfile full-path="OEBPS/content.opf" media-type="application/oebps-package+xml"/></rootfiles></container>`,
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"OEBPS/content.opf": `<?xml version="1.0"?><package xmlns="http://www.idpf.org/2007/opf" version="2.0"><manifest><item id="cover-image" href="images/cover.jpg" media-type="image/jpeg" properties="cover-image"/><item id="cover-page" href="cover.xhtml" media-type="application/xhtml+xml"/></manifest><metadata><meta name="cover" content="cover-image"/></metadata><spine><itemref idref="cover-page"/></spine></package>`,
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"OEBPS/cover.xhtml": `<?xml version="1.0"?><html xmlns="http://www.w3.org/1999/xhtml"><head><title>Cover</title></head><body><img src="images/cover.jpg" alt="Cover"/></body></html>`,
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}
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// Create images subdirectory
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imagesDir, err := zipWriter.Create("OEBPS/images/")
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if err != nil {
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return err
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}
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imagesDir.Write(nil)
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for name, content := range files {
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w, err := zipWriter.Create(name)
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if err != nil {
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return err
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}
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w.Write([]byte(content))
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}
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// Add cover image to images folder
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coverW, err := zipWriter.Create("OEBPS/images/cover.jpg")
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if err != nil {
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return err
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}
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coverW.Write([]byte(createPlaceholderJPEG()))
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return nil
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}
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// createTestEPUBWithoutCover creates a test EPUB without a cover image
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func createTestEPUBWithoutCover(epubPath string) error {
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file, err := os.Create(epubPath)
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if err != nil {
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return err
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}
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defer file.Close()
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zipWriter := zip.NewWriter(file)
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defer zipWriter.Close()
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files := map[string]string{
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"mimetype": "application/epub+zip",
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"META-INF/container.xml": `<?xml version="1.0"?><container version="1.0" xmlns="urn:oasis:names:tc:opendocument:xmlns:container"><rootfiles><rootfile full-path="OEBPS/content.opf" media-type="application/oebps-package+xml"/></rootfiles></container>`,
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"OEBPS/content.opf": `<?xml version="1.0"?><package xmlns="http://www.idpf.org/2007/opf" version="2.0"><manifest><item id="chapter1" href="chapter.xhtml" media-type="application/xhtml+xml"/></manifest><metadata><dc:title xmlns:dc="http://purl.org/dc/elements/1.1/">Test Book</dc:title></metadata><spine><itemref idref="chapter1"/></spine></package>`,
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"OEBPS/chapter.xhtml": `<?xml version="1.0"?><html xmlns="http://www.w3.org/1999/xhtml"><head><title>Chapter 1</title></head><body><p>Chapter 1 content</p></body></html>`,
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}
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for name, content := range files {
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w, err := zipWriter.Create(name)
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if err != nil {
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return err
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}
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w.Write([]byte(content))
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}
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return nil
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}
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// createPlaceholderJPEG creates a minimal valid JPEG for testing
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func createPlaceholderJPEG() string {
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// Minimal valid JPEG (1x1 gray)
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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})
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}
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// TestFindSidecarCover tests sidecar cover detection
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func TestFindSidecarCover(t *testing.T) {
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tests := []struct {
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name string
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setupFunc func(t *testing.T) (string, string) // Returns (mediaPath, coverPath)
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wantCover bool
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}{
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{
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name: "cover.jpg exists",
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setupFunc: func(t *testing.T) (string, string) {
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tmpDir := t.TempDir()
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mediaPath := filepath.Join(tmpDir, "book.epub")
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coverPath := filepath.Join(tmpDir, "cover.jpg")
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os.WriteFile(coverPath, []byte("fake image"), 0644)
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return mediaPath, coverPath
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},
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wantCover: true,
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},
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{
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name: "folder.jpg exists",
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setupFunc: func(t *testing.T) (string, string) {
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tmpDir := t.TempDir()
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mediaPath := filepath.Join(tmpDir, "book.epub")
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coverPath := filepath.Join(tmpDir, "folder.jpg")
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os.WriteFile(coverPath, []byte("fake image"), 0644)
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return mediaPath, coverPath
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},
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wantCover: true,
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},
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{
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name: "basename.jpg exists",
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setupFunc: func(t *testing.T) (string, string) {
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tmpDir := t.TempDir()
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mediaPath := filepath.Join(tmpDir, "mystory.epub")
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coverPath := filepath.Join(tmpDir, "mystory.jpg")
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os.WriteFile(coverPath, []byte("fake image"), 0644)
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return mediaPath, coverPath
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},
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wantCover: true,
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},
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{
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name: "no cover file",
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setupFunc: func(t *testing.T) (string, string) {
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tmpDir := t.TempDir()
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mediaPath := filepath.Join(tmpDir, "book.epub")
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return mediaPath, ""
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},
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wantCover: false,
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},
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}
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for _, tt := range tests {
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t.Run(tt.name, func(t *testing.T) {
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mediaPath, _ := tt.setupFunc(t)
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result := findSidecarCover(mediaPath)
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if tt.wantCover && result == "" {
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t.Error("Expected cover path but got empty string")
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}
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if !tt.wantCover && result != "" {
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t.Errorf("Did not expect cover but got: %s", result)
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}
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})
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}
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}
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