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test/integration: Add NodeJS Integration tests (parca-dev#2512)
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// 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. | ||
// | ||
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package nodejs | ||
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import ( | ||
"context" | ||
"fmt" | ||
"testing" | ||
"time" | ||
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"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" | ||
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"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" | ||
) | ||
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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) | ||
} | ||
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tests := []struct { | ||
images map[string]string | ||
program string | ||
want []string | ||
wantErr bool | ||
}{ | ||
{ | ||
images: map[string]string{ | ||
"18": "18-slim", | ||
"19": "19-slim", | ||
"20": "20-slim", | ||
"21": "21-slim", | ||
}, | ||
program: "testdata/cpu_hog.js", | ||
want: []string{"LazyCompile:*fib"}, | ||
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) | ||
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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", "--perf-basic-prof-only-functions", "--interpreted-frames-native-stack", "/cpu_hog.js"}, | ||
}, | ||
Started: true, | ||
}) | ||
require.NoError(t, err) | ||
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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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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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while (true) { | ||
a1(); | ||
} | ||
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