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// Copyright 2019 The Chromium OS 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 main
import (
"errors"
"fmt"
"io"
"io/ioutil"
"os"
"path/filepath"
"regexp"
"strconv"
"strings"
"testing"
)
func TestForwardStdOutAndStdErrAndExitCodeFromLogRusage(t *testing.T) {
withLogRusageTestContext(t, func(ctx *testContext) {
ctx.cmdMock = func(cmd *command, stdin io.Reader, stdout io.Writer, stderr io.Writer) error {
fmt.Fprint(stdout, "somemessage")
fmt.Fprint(stderr, "someerror")
return newExitCodeError(23)
}
exitCode := callCompiler(ctx, ctx.cfg, ctx.newCommand(gccX86_64, mainCc))
if exitCode != 23 {
t.Errorf("unexpected exit code. Got: %d", exitCode)
}
if ctx.stdoutString() != "somemessage" {
t.Errorf("stdout was not forwarded. Got: %s", ctx.stdoutString())
}
if ctx.stderrString() != "someerror" {
t.Errorf("stderr was not forwarded. Got: %s", ctx.stderrString())
}
})
}
func TestForwardStdinFromLogRusage(t *testing.T) {
withLogRusageTestContext(t, func(ctx *testContext) {
ctx.cmdMock = func(cmd *command, stdin io.Reader, stdout io.Writer, stderr io.Writer) error {
// Note: This is called for the clang syntax call as well as for
// the gcc call, and we assert that stdin is cloned and forwarded
// to both.
stdinStr := ctx.readAllString(stdin)
if stdinStr != "someinput" {
return fmt.Errorf("unexpected stdin. Got: %s", stdinStr)
}
return nil
}
io.WriteString(&ctx.stdinBuffer, "someinput")
ctx.must(callCompiler(ctx, ctx.cfg, ctx.newCommand(clangX86_64, "-", mainCc)))
})
}
func TestReportGeneralErrorsFromLogRusage(t *testing.T) {
withLogRusageTestContext(t, func(ctx *testContext) {
ctx.cmdMock = func(cmd *command, stdin io.Reader, stdout io.Writer, stderr io.Writer) error {
return errors.New("someerror")
}
stderr := ctx.mustFail(callCompiler(ctx, ctx.cfg,
ctx.newCommand(gccX86_64, mainCc)))
if err := verifyInternalError(stderr); err != nil {
t.Fatal(err)
}
if !strings.Contains(stderr, "someerror") {
t.Errorf("unexpected error. Got: %s", stderr)
}
})
}
func TestCreateDirAndFileForLogRusage(t *testing.T) {
withLogRusageTestContext(t, func(ctx *testContext) {
logFileName := filepath.Join(ctx.tempDir, "somedir", "rusage.log")
ctx.env = []string{"GETRUSAGE=" + logFileName}
ctx.must(callCompiler(ctx, ctx.cfg, ctx.newCommand(gccX86_64, mainCc)))
if _, err := os.Stat(logFileName); err != nil {
t.Errorf("rusage log file does not exist: %s", err)
}
})
}
func TestLogRusageFileContent(t *testing.T) {
withLogRusageTestContext(t, func(ctx *testContext) {
logFileName := filepath.Join(ctx.tempDir, "rusage.log")
ctx.env = []string{"GETRUSAGE=" + logFileName}
ctx.must(callCompiler(ctx, ctx.cfg, ctx.newCommand(gccX86_64, mainCc)))
data, err := ioutil.ReadFile(logFileName)
if err != nil {
t.Errorf("could not read the rusage log file. Error: %s", err)
}
// Example output:
// 0.100318 : 0.103412 : 0.096386 : 6508 : /tmp/compiler_wrapper036306868/x86_64-cros-linux-gnu-gcc.real : x86_64-cros-linux-gnu-gcc.real --sysroot=/tmp/compiler_wrapper036306868/usr/x86_64-cros-linux-gnu main.cc -mno-movbe
logParts := strings.Split(string(data), " : ")
if len(logParts) != 6 {
t.Errorf("unexpected number of rusage log parts. Got: %s", logParts)
}
// First 3 numbers are times in seconds.
for i := 0; i < 3; i++ {
if _, err := strconv.ParseFloat(logParts[i], 64); err != nil {
t.Errorf("unexpected value for index %d. Got: %s", i, logParts[i])
}
}
// Then an int for the memory usage
if _, err := strconv.ParseInt(logParts[3], 10, 64); err != nil {
t.Errorf("unexpected mem usage. Got: %s", logParts[3])
}
// Then the full path of the compiler
if logParts[4] != filepath.Join(ctx.tempDir, gccX86_64+".real") {
t.Errorf("unexpected compiler path. Got: %s", logParts[4])
}
// Then the arguments, prefixes with the compiler basename
if matched, _ := regexp.MatchString("x86_64-cros-linux-gnu-gcc.real --sysroot=.* main.cc", logParts[5]); !matched {
t.Errorf("unexpected compiler args. Got: %s", logParts[5])
}
})
}
func TestLogRusageAppendsToFile(t *testing.T) {
withLogRusageTestContext(t, func(ctx *testContext) {
logFileName := filepath.Join(ctx.tempDir, "rusage.log")
ctx.env = []string{"GETRUSAGE=" + logFileName}
ctx.must(callCompiler(ctx, ctx.cfg, ctx.newCommand(gccX86_64, mainCc)))
data, err := ioutil.ReadFile(logFileName)
if err != nil {
t.Errorf("could not read the rusage log file. Error: %s", err)
}
firstCallLines := strings.Split(string(data), "\n")
if len(firstCallLines) != 2 {
t.Errorf("unexpected number of lines. Got: %s", firstCallLines)
}
if firstCallLines[0] == "" {
t.Error("first line was empty")
}
if firstCallLines[1] != "" {
t.Errorf("second line was not empty. Got: %s", firstCallLines[1])
}
ctx.must(callCompiler(ctx, ctx.cfg, ctx.newCommand(gccX86_64, mainCc)))
data, err = ioutil.ReadFile(logFileName)
if err != nil {
t.Errorf("could not read the rusage log file. Error: %s", err)
}
secondCallLines := strings.Split(string(data), "\n")
if len(secondCallLines) != 3 {
t.Errorf("unexpected number of lines. Got: %s", secondCallLines)
}
if secondCallLines[0] != firstCallLines[0] {
t.Errorf("first line was changed. Got: %s", secondCallLines[0])
}
if secondCallLines[1] == "" {
t.Error("second line was empty")
}
if secondCallLines[2] != "" {
t.Errorf("third line was not empty. Got: %s", secondCallLines[2])
}
})
}
func withLogRusageTestContext(t *testing.T, work func(ctx *testContext)) {
withTestContext(t, func(ctx *testContext) {
ctx.env = []string{"GETRUSAGE=" + filepath.Join(ctx.tempDir, "rusage.log")}
work(ctx)
})
}
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