test: add simple unit tests for backend and logging packages

2026-05-22 22:49:25 +02:00
parent b71072f6c8
commit 92b82da3af
5 changed files with 634 additions and 0 deletions
@@ -0,0 +1,204 @@
+package backend
+
+import (
+	"io/fs"
+	"os"
+	"testing"
+	"time"
+)
+
+func TestContains(t *testing.T) {
+	tests := []struct {
+		name      string
+		slice     []string
+		search    string
+		expected  bool
+	}{
+		{
+			name:     "element exists",
+			slice:    []string{"a", "b", "c"},
+			search:   "b",
+			expected: true,
+		},
+		{
+			name:     "element does not exist",
+			slice:    []string{"a", "b", "c"},
+			search:   "d",
+			expected: false,
+		},
+		{
+			name:     "empty slice",
+			slice:    []string{},
+			search:   "a",
+			expected: false,
+		},
+		{
+			name:     "element at start",
+			slice:    []string{"a", "b", "c"},
+			search:   "a",
+			expected: true,
+		},
+		{
+			name:     "element at end",
+			slice:    []string{"a", "b", "c"},
+			search:   "c",
+			expected: true,
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			result := contains(tt.slice, tt.search)
+			if result != tt.expected {
+				t.Errorf("contains() = %v, want %v", result, tt.expected)
+			}
+		})
+	}
+}
+
+func TestIsSong(t *testing.T) {
+	mockFileInfo := &mockFileInfoForSong{name: "test.mp3", isDir: false, size: 100}
+
+	result := isSong(mockFileInfo)
+	if !result {
+		t.Error("isSong() should return true for .mp3 file")
+	}
+
+	mockFileInfo2 := &mockFileInfoForSong{name: "test.txt", isDir: false, size: 100}
+	result = isSong(mockFileInfo2)
+	if result {
+		t.Error("isSong() should return false for .txt file")
+	}
+
+	mockFileInfo3 := &mockFileInfoForSong{name: "test", isDir: true, size: 100}
+	result = isSong(mockFileInfo3)
+	if result {
+		t.Error("isSong() should return false for directory")
+	}
+}
+
+func TestIsCoverImage(t *testing.T) {
+	tests := []struct {
+		name     string
+		fileInfo fs.FileInfo
+		expected bool
+	}{
+		{
+			name:     "cover.jpg",
+			fileInfo: &mockFileInfoForCover{name: "cover.jpg", isDir: false, size: 100},
+			expected: true,
+		},
+		{
+			name:     "cover.png",
+			fileInfo: &mockFileInfoForCover{name: "cover.png", isDir: false, size: 100},
+			expected: true,
+		},
+		{
+			name:     "my_cover.jpg",
+			fileInfo: &mockFileInfoForCover{name: "my_cover.jpg", isDir: false, size: 100},
+			expected: true,
+		},
+		{
+			name:     "image.jpg",
+			fileInfo: &mockFileInfoForCover{name: "image.jpg", isDir: false, size: 100},
+			expected: false,
+		},
+		{
+			name:     "cover.txt",
+			fileInfo: &mockFileInfoForCover{name: "cover.txt", isDir: false, size: 100},
+			expected: false,
+		},
+		{
+			name:     "directory",
+			fileInfo: &mockFileInfoForCover{name: "cover", isDir: true, size: 100},
+			expected: false,
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			result := isCoverImage(tt.fileInfo)
+			if result != tt.expected {
+				t.Errorf("isCoverImage() = %v, want %v", result, tt.expected)
+			}
+		})
+	}
+}
+
+func TestGetIdFromFileNew(t *testing.T) {
+	tests := []struct {
+		name     string
+		fileInfo os.FileInfo
+		expected int32
+	}{
+		{
+			name:     "valid id file",
+			fileInfo: &mockFileInfoForId{name: ".123.id", isDir: false, size: 100},
+			expected: 123,
+		},
+		{
+			name:     "invalid id file (directory)",
+			fileInfo: &mockFileInfoForId{name: ".123.id", isDir: true, size: 100},
+			expected: -1,
+		},
+		{
+			name:     "invalid id file (no .id extension)",
+			fileInfo: &mockFileInfoForId{name: "123.txt", isDir: false, size: 100},
+			expected: -1,
+		},
+		{
+			name:     "invalid id file (not a number)",
+			fileInfo: &mockFileInfoForId{name: ".abc.id", isDir: false, size: 100},
+			expected: 0, // strconv.Atoi returns 0 for invalid numbers (error is ignored)
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			result := getIdFromFileNew(tt.fileInfo)
+			if result != tt.expected {
+				t.Errorf("getIdFromFileNew() = %v, want %v", result, tt.expected)
+			}
+		})
+	}
+}
+
+// Mock types for testing
+type mockFileInfoForSong struct {
+	name  string
+	isDir bool
+	size  int64
+}
+
+func (m *mockFileInfoForSong) Name() string       { return m.name }
+func (m *mockFileInfoForSong) Size() int64        { return m.size }
+func (m *mockFileInfoForSong) Mode() os.FileMode   { return 0 }
+func (m *mockFileInfoForSong) ModTime() time.Time  { return time.Time{} }
+func (m *mockFileInfoForSong) IsDir() bool         { return m.isDir }
+func (m *mockFileInfoForSong) Sys() interface{}    { return nil }
+
+type mockFileInfoForCover struct {
+	name  string
+	isDir bool
+	size  int64
+}
+
+func (m *mockFileInfoForCover) Name() string       { return m.name }
+func (m *mockFileInfoForCover) Size() int64        { return m.size }
+func (m *mockFileInfoForCover) Mode() os.FileMode   { return 0 }
+func (m *mockFileInfoForCover) ModTime() time.Time  { return time.Time{} }
+func (m *mockFileInfoForCover) IsDir() bool         { return m.isDir }
+func (m *mockFileInfoForCover) Sys() interface{}    { return nil }
+
+type mockFileInfoForId struct {
+	name  string
+	isDir bool
+	size  int64
+}
+
+func (m *mockFileInfoForId) Name() string       { return m.name }
+func (m *mockFileInfoForId) Size() int64        { return m.size }
+func (m *mockFileInfoForId) Mode() os.FileMode   { return 0 }
+func (m *mockFileInfoForId) ModTime() time.Time  { return time.Time{} }
+func (m *mockFileInfoForId) IsDir() bool         { return m.isDir }
+func (m *mockFileInfoForId) Sys() interface{}    { return nil }