switch {
			case testCase.expectedErr == nil:
				if err != nil {
					t.Errorf("error: expected = <nil>, got = %v", err)
				}
			case err == nil:
				t.Errorf("error: expected = %v, got = <nil>", testCase.expectedErr)
			case testCase.expectedErr.Error() != err.Error():
				t.Errorf("error: expected = %v, got = %v", testCase.expectedErr, err)
			}
		})
	}
}

		expectedUpdate bool
		expectedErr    bool
		name           string
	}{
		{
			meta:           meta,
			pools:          pools,
			name:           "Correct",
			expectedErr:    false,
			expectedUpdate: false,
		},
		{
			meta:           meta,
			pools:          newPools,
			name:           "Correct-Update",
			expectedErr:    false,
			expectedUpdate: true,
		},
		{

	testCases := []struct {
		volName     string
		expectedErr error
	}{
		// TestXLStorage case - 1.
		{
			volName:     "success-vol",
			expectedErr: nil,
		},
		// TestXLStorage case - 2.
		{
			volName:     "nonexistent-vol",
			expectedErr: errVolumeNotFound,
		},
		// TestXLStorage case - 3.
		{
			volName:     "ab",
			expectedErr: errVolumeNotFound,
		},
	}

		config      string
		expectedErr bool
		hash        string
	}{
		{
			config:      "testdata/config/1.yaml",
			expectedErr: false,
			hash:        "hash:02bf70285dc71f76",
		},
		{
			config:      "testdata/config/2.yaml",
			expectedErr: false,
			hash:        "hash:676d2da00f71f205",
		},
		{
			config:      "testdata/config/invalid.yaml",
			expectedErr: true,
		},
		{

			}
		}

		str := getUserAgent(testCase.mode)
		expectedStr := testCase.expectedStr
		if IsDocker() {
			expectedStr = strings.ReplaceAll(expectedStr, "; source", "; docker; source")
		}
		if !strings.Contains(str, expectedStr) {
			t.Errorf("Test %d: expected: %s, got: %s", i+1, expectedStr, str)
		}
		os.Unsetenv("MARATHON_APP_LABEL_DCOS_PACKAGE_VERSION")
		os.Unsetenv(testCase.envName)

	tests := []struct {
		value       DefaultRetention
		expectedErr error
		expectErr   bool
	}{
		{
			value:       DefaultRetention{Mode: "retain"},
			expectedErr: fmt.Errorf("unknown retention mode retain"),
			expectErr:   true,
		},
		{
			value:       DefaultRetention{Mode: RetGovernance},
			expectedErr: fmt.Errorf("either Days or Years must be specified"),
			expectErr:   true,
		},
		{

	}

	// Test them.
	for _, testCase := range testCases {
		index, offset, err := fi.ObjectToPartOffset(t.Context(), testCase.offset)
		if err != testCase.expectedErr {
			t.Fatalf("%+v: expected = %s, got: %s", testCase, testCase.expectedErr, err)
		}
		if index != testCase.expectedIndex {
			t.Fatalf("%+v: index: expected = %d, got: %d", testCase, testCase.expectedIndex, index)
		}

	}
	testCases := []struct {
		req         *http.Request
		expectedErr error
	}{
		// Set valid authorization header.
		{
			req: &http.Request{
				Header: http.Header{
					"Authorization": []string{token},
				},
			},
			expectedErr: nil,
		},
		// No authorization header.
		{
			req: &http.Request{
				Header: http.Header{},
			},
			expectedErr: errNoAuthToken,
		},
		// Invalid authorization token.

				err = endpoint.UpdateIsLocal()
			}

			switch {
			case test.expectedErr == nil:
				if err != nil {
					t.Errorf("error: expected = <nil>, got = %v", err)
				}
			case err == nil:
				t.Errorf("error: expected = %v, got = <nil>", test.expectedErr)
			case test.expectedErr.Error() != err.Error():
				t.Errorf("error: expected = %v, got = %v", test.expectedErr, err)
			}

			if err == nil {

		},
	}

	for _, testCase := range testCases {
		t.Run(testCase.timeStr, func(t *testing.T) {
			gott, goterr := Parse(testCase.timeStr)
			if !errors.Is(goterr, testCase.expectedErr) {
				t.Errorf("expected %v, got %v", testCase.expectedErr, goterr)
			}
			if !gott.Equal(testCase.expectedTime) {
				t.Errorf("expected %v, got %v", testCase.expectedTime, gott)
			}
		})
	}