blob: 081642931652bafe9a34750acfd8677cd2108445 [file] [log] [blame]
// Copyright 2018 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 ld
import (
"internal/testenv"
"io/ioutil"
"os"
"os/exec"
"strings"
"testing"
)
func TestUndefinedRelocErrors(t *testing.T) {
t.Parallel()
testenv.MustHaveGoBuild(t)
dir, err := ioutil.TempDir("", "go-build")
if err != nil {
t.Fatal(err)
}
defer os.RemoveAll(dir)
out, err := exec.Command(testenv.GoToolPath(t), "build", "./testdata/issue10978").CombinedOutput()
if err == nil {
t.Fatal("expected build to fail")
}
wantErrors := map[string]int{
// Main function has dedicated error message.
"function main is undeclared in the main package": 1,
// Single error reporting per each symbol.
// This way, duplicated messages are not reported for
// multiple relocations with a same name.
"main.defined1: relocation target main.undefined not defined": 1,
"main.defined2: relocation target main.undefined not defined": 1,
}
unexpectedErrors := map[string]int{}
for _, l := range strings.Split(string(out), "\n") {
if strings.HasPrefix(l, "#") || l == "" {
continue
}
matched := ""
for want := range wantErrors {
if strings.Contains(l, want) {
matched = want
break
}
}
if matched != "" {
wantErrors[matched]--
} else {
unexpectedErrors[l]++
}
}
for want, n := range wantErrors {
switch {
case n > 0:
t.Errorf("unmatched error: %s (x%d)", want, n)
case n < 0:
t.Errorf("extra errors: %s (x%d)", want, -n)
}
}
for unexpected, n := range unexpectedErrors {
t.Errorf("unexpected error: %s (x%d)", unexpected, n)
}
}