Function TestNewDefaultFS

echo_test.go:85–134

(t *testing.T)

}

func TestNewDefaultFS(t *testing.T) {
	tempDir := t.TempDir()
	filename := filepath.Join(tempDir, "file.txt")
	if err := os.WriteFile(filename, []byte("hello"), 0644); err != nil {
		t.Fatalf("failed to write file: %v", err)
	}

	var testCases = []struct {
		name          string
		givenDir      string
		whenName      string
		expectedError string
	}{
		{
			name:     "ok, can open absolute path",
			givenDir: tempDir,
			whenName: filename,
		},
		{
			name:     "ok, can open path to fs",
			givenDir: tempDir,
			whenName: "file.txt",
		},
		{
			name:          "nok, can not use ./ in path",
			givenDir:      tempDir,
			whenName:      "./file.txt",
			expectedError: `open ./file.txt: invalid argument`,
		},
	}
	for _, tc := range testCases {
		t.Run(tc.name, func(t *testing.T) {
			myFs := NewDefaultFS(tc.givenDir)

			f, err := myFs.Open(tc.whenName)
			if tc.expectedError != "" {
				assert.EqualError(t, err, tc.expectedError)
				return
			}
			if err != nil {
				t.Fatalf("failed to read file: %v", err)
			}
			defer f.Close()

			contents, err := io.ReadAll(f)
			assert.NoError(t, err)
			assert.Equal(t, []byte("hello"), contents)
		})
	}
}

func TestEcho_StaticFS(t *testing.T) {
	dotsInFilenameFS := fstest.MapFS{