go testing_test 源码
golang testing_test 代码
文件路径：/src/cmd/compile/internal/syntax/testing_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 syntax
import (
"fmt"
"strings"
"testing"
)
func TestErrorMap(t *testing.T) {
const src = `/* ERROR 0:0 */ /* ERROR "0:0" */ // ERROR 0:0
// ERROR "0:0"
x /* ERROR 3:1 */ // ignore automatically inserted semicolon here
/* ERROR 3:1 */ // position of x on previous line
x /* ERROR 5:4 */ ; // do not ignore this semicolon
/* ERROR 5:22 */ // position of ; on previous line
package /* ERROR 7:2 */ // indented with tab
import /* ERROR 8:9 */ // indented with blanks
`
m := ErrorMap(strings.NewReader(src))
got := 0 // number of errors found
for line, errlist := range m {
for _, err := range errlist {
if err.Pos.Line() != line {
t.Errorf("%v: got map line %d; want %d", err, err.Pos.Line(), line)
continue
}
// err.Pos.Line() == line
msg := fmt.Sprintf("%d:%d", line, err.Pos.Col())
if err.Msg != msg {
t.Errorf("%v: got msg %q; want %q", err, err.Msg, msg)
continue
}
}
got += len(errlist)
}
want := strings.Count(src, "ERROR")
if got != want {
t.Errorf("ErrorMap got %d errors; want %d", got, want)
}
}
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