src/go/types/errors_test.go

// Copyright 2020 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

package types

import (
	"go/token"
	"testing"
)

func TestError(t *testing.T) {
	var err error_
	want := "no error"
	if got := err.String(); got != want {
		t.Errorf("empty error: got %q, want %q", got, want)
	}

	want = "0: foo 42"
	err.errorf(token.NoPos, "foo %d", 42)
	if got := err.String(); got != want {
		t.Errorf("simple error: got %q, want %q", got, want)
	}

	want = "0: foo 42\n\tbar 43"
	err.errorf(token.NoPos, "bar %d", 43)
	if got := err.String(); got != want {
		t.Errorf("simple error: got %q, want %q", got, want)
	}
}

func TestStripAnnotations(t *testing.T) {
	for _, test := range []struct {
		in, want string
	}{
		{"", ""},
		{"   ", "   "},
		{"foo", "foo"},
		{"foo₀", "foo"},
		{"foo(T₀)", "foo(T)"},
	} {
		got := stripAnnotations(test.in)
		if got != test.want {
			t.Errorf("%q: got %q; want %q", test.in, got, test.want)
		}
	}
}