transfer.sh/vendor/cloud.google.com/go/profiler/heap_test.go
2019-03-17 20:19:56 +01:00

79 lines
2.1 KiB
Go

// Copyright 2018 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package profiler
import (
"bytes"
"io"
"testing"
"cloud.google.com/go/profiler/testdata"
"github.com/google/pprof/profile"
)
func TestGoHeapProfile(t *testing.T) {
oldStartCPUProfile, oldStopCPUProfile, oldWriteHeapProfile, oldSleep := startCPUProfile, stopCPUProfile, writeHeapProfile, sleep
defer func() {
startCPUProfile, stopCPUProfile, writeHeapProfile, sleep = oldStartCPUProfile, oldStopCPUProfile, oldWriteHeapProfile, oldSleep
}()
tests := []struct {
name string
profile *profile.Profile
wantErr bool
}{
{
name: "valid heap profile",
profile: testdata.HeapProfileCollected1,
},
{
name: "profile with too few sample types",
profile: testdata.AllocProfileUploaded,
wantErr: true,
},
{
name: "profile with incorrect sample types",
profile: &profile.Profile{
DurationNanos: 10e9,
SampleType: []*profile.ValueType{
{Type: "objects", Unit: "count"},
{Type: "alloc_space", Unit: "bytes"},
{Type: "inuse_objects", Unit: "count"},
{Type: "inuse_space", Unit: "bytes"},
},
},
wantErr: true,
},
}
for _, tc := range tests {
var profileBytes bytes.Buffer
tc.profile.Write(&profileBytes)
writeHeapProfile = func(w io.Writer) error {
w.Write(profileBytes.Bytes())
return nil
}
_, err := goHeapProfile()
if tc.wantErr {
if err == nil {
t.Errorf("%s: goHeapProfile() got no error, want error", tc.name)
}
continue
}
if err != nil {
t.Errorf("%s: goHeapProfile() got %q, want no error", tc.name, err)
}
}
}