Function TestCompiler

compiler/compiler_test.go:28–129

Basic tests for the compiler. Build some Go files and compare the output with the expected LLVM IR for regression testing.

(t *testing.T)

// Basic tests for the compiler. Build some Go files and compare the output with
// the expected LLVM IR for regression testing.
func TestCompiler(t *testing.T) {
	t.Parallel()

	// Determine Go minor version (e.g. 16 in go1.16.3).
	_, goMinor, err := goenv.GetGorootVersion()
	if err != nil {
		t.Fatal("could not read Go version:", err)
	}

	// Determine which tests to run, depending on the Go and LLVM versions.
	tests := []testCase{
		{"basic.go", "", ""},
		{"pointer.go", "", ""},
		{"slice.go", "", ""},
		{"string.go", "", ""},
		{"float.go", "", ""},
		{"interface.go", "", ""},
		{"func.go", "", ""},
		{"defer.go", "cortex-m-qemu", ""},
		{"pragma.go", "", ""},
		{"goroutine.go", "wasm", "asyncify"},
		{"goroutine.go", "cortex-m-qemu", "tasks"},
		{"channel.go", "", ""},
		{"gc.go", "", ""},
		{"zeromap.go", "", ""},
	}
	if goMinor >= 20 {
		tests = append(tests, testCase{"go1.20.go", "", ""})
	}
	if goMinor >= 21 {
		tests = append(tests, testCase{"go1.21.go", "", ""})
	}

	for _, tc := range tests {
		name := tc.file
		targetString := "wasm"
		if tc.target != "" {
			targetString = tc.target
			name += "-" + tc.target
		}
		if tc.scheduler != "" {
			name += "-" + tc.scheduler
		}

		t.Run(name, func(t *testing.T) {
			options := &compileopts.Options{
				Target: targetString,
			}
			if tc.scheduler != "" {
				options.Scheduler = tc.scheduler
			}

			mod, errs := testCompilePackage(t, options, tc.file)
			if errs != nil {
				for _, err := range errs {
					t.Error(err)
				}
				return