Function testErrorMessages

errors_test.go:60–92

(t *testing.T, filename string, options *compileopts.Options)

}

func testErrorMessages(t *testing.T, filename string, options *compileopts.Options) {
	t.Parallel()

	// Parse expected error messages.
	expected := readErrorMessages(t, filename)

	// Try to build a binary (this should fail with an error).
	tmpdir := t.TempDir()
	config, err := builder.NewConfig(options)
	if err != nil {
		t.Fatal("expected to get a compiler error")
	}
	err = Build(filename, tmpdir+"/out", config)
	if err == nil {
		t.Fatal("expected to get a compiler error")
	}

	// Get the full ./testdata/errors directory.
	wd, absErr := filepath.Abs("testdata/errors")
	if absErr != nil {
		t.Fatal(absErr)
	}

	// Write error message out as plain text.
	var buf bytes.Buffer
	diagnostics.CreateDiagnostics(err).WriteTo(&buf, wd)
	actual := strings.TrimRight(buf.String(), "\n")

	// Check whether the error is as expected.
	if !matchErrors(t, expected, actual) {
		t.Errorf("expected error:\n%s\ngot:\n%s", indentText(expected, "> "), indentText(actual, "> "))
	}
}

func matchErrors(t *testing.T, pattern, actual string) bool {
	patternLines := strings.Split(pattern, "\n")