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test/integration: Add NodeJS Integration tests (parca-dev#2512)
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,182 @@ | ||
| // Copyright 2022-2024 The Parca Authors | ||
| // 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 nodejs | ||
|
|
||
| import ( | ||
| "context" | ||
| "fmt" | ||
| "testing" | ||
| "time" | ||
|
|
||
| "github.com/prometheus/client_golang/prometheus" | ||
| "github.com/prometheus/common/model" | ||
| "github.com/prometheus/prometheus/model/relabel" | ||
| "github.com/stretchr/testify/require" | ||
| "github.com/testcontainers/testcontainers-go" | ||
|
|
||
| "github.com/parca-dev/parca-agent/pkg/agent" | ||
| "github.com/parca-dev/parca-agent/pkg/logger" | ||
| "github.com/parca-dev/parca-agent/pkg/objectfile" | ||
| "github.com/parca-dev/parca-agent/pkg/profiler/cpu" | ||
| "github.com/parca-dev/parca-agent/test/integration" | ||
| ) | ||
|
|
||
| func TestNodeJS(t *testing.T) { | ||
| ok, _, err := agent.PreflightChecks(false, false, false) | ||
| require.Truef(t, ok, "preflight checks failed: %v", err) | ||
| if err != nil { | ||
| t.Logf("preflight checks passed but with errors: %v", err) | ||
| } | ||
|
|
||
| tests := []struct { | ||
| images map[string]string | ||
| program string | ||
| want []string | ||
| wantErr bool | ||
| }{ | ||
| { | ||
| images: map[string]string{ | ||
| "18": "18-slim", | ||
| "20": "20-slim", | ||
| "21": "21-slim", | ||
| }, | ||
| program: "testdata/cpu_hog.js", | ||
| want: []string{ | ||
| "JS:^runLoop", | ||
| "JS:^a1", | ||
| "JS:^b1", | ||
| "JS:^c1", | ||
| "JS:^cpu", | ||
| }, | ||
| wantErr: false, | ||
| }, | ||
| } | ||
| for _, tt := range tests { | ||
| for version, imageTag := range tt.images { | ||
| var ( | ||
| program = tt.program | ||
| want = tt.want | ||
| name = fmt.Sprintf("%s on nodejs-%s", imageTag, version) | ||
| version = version | ||
| ) | ||
| t.Run(name, func(t *testing.T) { | ||
| // Start a Node.js container. | ||
| ctx, cancel := context.WithCancel(context.Background()) | ||
| t.Cleanup(cancel) | ||
|
|
||
| nodejs, err := testcontainers.GenericContainer(ctx, testcontainers.GenericContainerRequest{ | ||
| ContainerRequest: testcontainers.ContainerRequest{ | ||
| Image: fmt.Sprintf("node:%s", imageTag), | ||
| Files: []testcontainers.ContainerFile{ | ||
| { | ||
| HostFilePath: program, | ||
| ContainerFilePath: "/cpu_hog.js", | ||
| FileMode: 0o700, | ||
| }, | ||
| }, | ||
| Cmd: []string{"node", "--no-opt", "--perf-basic-prof-only-functions", "--interpreted-frames-native-stack", "/cpu_hog.js"}, | ||
| }, | ||
| Started: true, | ||
| }) | ||
| require.NoError(t, err) | ||
|
|
||
| t.Cleanup(func() { | ||
| ctx, cancel := context.WithTimeout(context.Background(), time.Second) | ||
| defer cancel() | ||
|
|
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| err := nodejs.Terminate(ctx) | ||
| if err != nil { | ||
| require.ErrorIs(t, err, context.DeadlineExceeded) | ||
| } | ||
| }) | ||
|
|
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| state, err := nodejs.State(ctx) | ||
| require.NoError(t, err) | ||
|
|
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| if !state.Running { | ||
| t.Logf("node.js (%s) is not running", name) | ||
| } | ||
|
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| t.Logf("node.js (%s) is running with pid %d", version, state.Pid) | ||
|
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| // Start the agent. | ||
| var ( | ||
| profileStore = integration.NewTestProfileStore() | ||
| profileDuration = integration.ProfileDuration() | ||
|
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| logger = logger.NewLogger("error", logger.LogFormatLogfmt, "parca-agent-tests") | ||
| reg = prometheus.NewRegistry() | ||
| ofp = objectfile.NewPool(logger, reg, "", 10, 0) | ||
| ) | ||
| t.Cleanup(func() { | ||
| ofp.Close() | ||
| }) | ||
|
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| profiler, err := integration.NewTestProfiler(logger, reg, ofp, profileStore, t.TempDir(), &cpu.Config{ | ||
| ProfilingDuration: 1 * time.Second, | ||
| ProfilingSamplingFrequency: uint64(27), | ||
| PerfEventBufferPollInterval: 250, | ||
| PerfEventBufferProcessingInterval: 100, | ||
| PerfEventBufferWorkerCount: 8, | ||
| MemlockRlimit: uint64(4000000), | ||
| DebugProcessNames: []string{}, | ||
| DWARFUnwindingDisabled: false, | ||
| DWARFUnwindingMixedModeEnabled: true, | ||
| PythonUnwindingEnabled: false, | ||
| RubyUnwindingEnabled: false, | ||
| BPFVerboseLoggingEnabled: false, // Enable for debugging. | ||
| BPFEventsBufferSize: 8192, | ||
| RateLimitUnwindInfo: 50, | ||
| RateLimitProcessMappings: 50, | ||
| RateLimitRefreshProcessInfo: 50, | ||
| }, | ||
| &relabel.Config{ | ||
| Action: relabel.Keep, | ||
| SourceLabels: model.LabelNames{"nodejs"}, | ||
| Regex: relabel.MustNewRegexp("true"), | ||
| }, | ||
| &relabel.Config{ | ||
| Action: relabel.Keep, | ||
| SourceLabels: model.LabelNames{"nodejs_version"}, | ||
| Regex: relabel.MustNewRegexp(fmt.Sprintf("%s.*", version)), | ||
| }, | ||
| ) | ||
| require.NoError(t, err) | ||
|
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| ctx, cancel = context.WithTimeout(context.Background(), profileDuration) | ||
| t.Cleanup(cancel) | ||
|
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| require.Equal(t, profiler.Run(ctx), context.DeadlineExceeded) | ||
| require.NotEmpty(t, profileStore.Samples) | ||
|
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| sample := profileStore.SampleForProcess(state.Pid, false) | ||
| require.NotNil(t, sample) | ||
|
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| require.Less(t, sample.Profile.DurationNanos, profileDuration.Nanoseconds()) | ||
| require.Equal(t, "samples", sample.Profile.SampleType[0].Type) | ||
| require.Equal(t, "count", sample.Profile.SampleType[0].Unit) | ||
|
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| require.NotEmpty(t, sample.Profile.Sample) | ||
| require.NotEmpty(t, sample.Profile.Location) | ||
| require.NotEmpty(t, sample.Profile.Mapping) | ||
|
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| aggregatedStack, err := integration.AggregateStacks(sample.Profile) | ||
| require.NoError(t, err) | ||
|
|
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| integration.RequireAnyStackContains(t, aggregatedStack, want) | ||
| }) | ||
| } | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,27 @@ | ||
| function cpu() { | ||
| for (let i = 0; i < 1001; i++) { | ||
| // Do nothing, simulating CPU work | ||
| } | ||
| } | ||
|
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| function c1() { | ||
| cpu(); | ||
| } | ||
|
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| function b1() { | ||
| c1(); | ||
| } | ||
|
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| function a1() { | ||
| b1(); | ||
| } | ||
|
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| console.log(`PID: ${process.pid}`); | ||
|
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| function runLoop() { | ||
| while (true) { | ||
| a1(); | ||
| } | ||
| } | ||
|
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| runLoop(); |