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|
//go:build pprof
// +build pprof
package fzf
import (
"bytes"
"flag"
"os"
"os/exec"
"path/filepath"
"testing"
"github.com/junegunn/fzf/src/util"
)
// runInitProfileTests is an internal flag used TestInitProfiling
var runInitProfileTests = flag.Bool("test-init-profile", false, "run init profile tests")
func TestInitProfiling(t *testing.T) {
if testing.Short() {
t.Skip("short test")
}
// Run this test in a separate process since it interferes with
// profiling and modifies the global atexit state. Without this
// running `go test -bench . -cpuprofile cpu.out` will fail.
if !*runInitProfileTests {
t.Parallel()
// Make sure we are not the child process.
if os.Getenv("_FZF_CHILD_PROC") != "" {
t.Fatal("already running as child process!")
}
cmd := exec.Command(os.Args[0],
"-test.timeout", "30s",
"-test.run", "^"+t.Name()+"$",
"-test-init-profile",
)
cmd.Env = append(os.Environ(), "_FZF_CHILD_PROC=1")
out, err := cmd.CombinedOutput()
out = bytes.TrimSpace(out)
if err != nil {
t.Fatalf("Child test process failed: %v:\n%s", err, out)
}
// Make sure the test actually ran
if bytes.Contains(out, []byte("no tests to run")) {
t.Fatalf("Failed to run test %q:\n%s", t.Name(), out)
}
return
}
// Child process
tempdir := t.TempDir()
t.Cleanup(util.RunAtExitFuncs)
o := Options{
CPUProfile: filepath.Join(tempdir, "cpu.prof"),
MEMProfile: filepath.Join(tempdir, "mem.prof"),
BlockProfile: filepath.Join(tempdir, "block.prof"),
MutexProfile: filepath.Join(tempdir, "mutex.prof"),
}
if err := o.initProfiling(); err != nil {
t.Fatal(err)
}
profiles := []string{
o.CPUProfile,
o.MEMProfile,
o.BlockProfile,
o.MutexProfile,
}
for _, name := range profiles {
if _, err := os.Stat(name); err != nil {
t.Errorf("Failed to create profile %s: %v", filepath.Base(name), err)
}
}
util.RunAtExitFuncs()
for _, name := range profiles {
if _, err := os.Stat(name); err != nil {
t.Errorf("Failed to write profile %s: %v", filepath.Base(name), err)
}
}
}
|
