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Signed-off-by: Juraci Paixão Kröhling <juraci@kroehling.de>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,120 @@ | ||
| // Copyright The OpenTelemetry 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 tracegen | ||
|
|
||
| import ( | ||
| "context" | ||
| "testing" | ||
| "time" | ||
|
|
||
| "github.com/go-logr/zapr" | ||
| "github.com/stretchr/testify/assert" | ||
| "github.com/stretchr/testify/require" | ||
| "go.opentelemetry.io/otel/api/global" | ||
| export "go.opentelemetry.io/otel/sdk/export/trace" | ||
| sdktrace "go.opentelemetry.io/otel/sdk/trace" | ||
| "go.uber.org/zap" | ||
| ) | ||
|
|
||
| func TestFixedNumberOfTraces(t *testing.T) { | ||
| // prepare | ||
| syncer := &mockSyncer{} | ||
|
|
||
| tracerProvider, err := sdktrace.NewProvider() | ||
| require.NoError(t, err) | ||
| sp := sdktrace.NewSimpleSpanProcessor(syncer) | ||
| tracerProvider.RegisterSpanProcessor(sp) | ||
| global.SetTraceProvider(tracerProvider) | ||
|
|
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| cfg := &Config{ | ||
| NumTraces: 1, | ||
| WorkerCount: 1, | ||
| } | ||
|
|
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| // test | ||
| Run(cfg, zapr.NewLogger(zap.NewNop())) | ||
|
|
||
| // verify | ||
| assert.Len(t, syncer.spans, 2) // each trace has two spans | ||
| } | ||
|
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| func TestRateOfSpans(t *testing.T) { | ||
| // prepare | ||
| syncer := &mockSyncer{} | ||
|
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| tracerProvider, err := sdktrace.NewProvider() | ||
| require.NoError(t, err) | ||
| sp := sdktrace.NewSimpleSpanProcessor(syncer) | ||
| tracerProvider.RegisterSpanProcessor(sp) | ||
| global.SetTraceProvider(tracerProvider) | ||
|
|
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| cfg := &Config{ | ||
| Rate: 10, | ||
| TotalDuration: time.Second / 2, | ||
| WorkerCount: 1, | ||
| } | ||
|
|
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| // sanity check | ||
| require.Len(t, syncer.spans, 0) | ||
|
|
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| // test | ||
| Run(cfg, zapr.NewLogger(zap.NewNop())) | ||
|
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| // verify | ||
| // the minimum acceptable number of spans for the rate of 10/sec for half a second | ||
| assert.True(t, len(syncer.spans) >= 6, "there should have been more than 6 spans, had %d", len(syncer.spans)) | ||
| // the maximum acceptable number of spans for the rate of 10/sec for half a second | ||
| assert.True(t, len(syncer.spans) <= 20, "there should have been less than 20 spans, had %d", len(syncer.spans)) | ||
| } | ||
|
|
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| func TestUnthrottled(t *testing.T) { | ||
| // prepare | ||
| syncer := &mockSyncer{} | ||
|
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| tracerProvider, err := sdktrace.NewProvider() | ||
| require.NoError(t, err) | ||
| sp := sdktrace.NewSimpleSpanProcessor(syncer) | ||
| tracerProvider.RegisterSpanProcessor(sp) | ||
| global.SetTraceProvider(tracerProvider) | ||
|
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| cfg := &Config{ | ||
| TotalDuration: 50 * time.Millisecond, | ||
| WorkerCount: 1, | ||
| } | ||
|
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| // sanity check | ||
| require.Len(t, syncer.spans, 0) | ||
|
|
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| // test | ||
| Run(cfg, zapr.NewLogger(zap.NewNop())) | ||
|
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| // verify | ||
| // the minimum acceptable number of spans -- the real number should be > 10k, but CI env might be slower | ||
| assert.True(t, len(syncer.spans) > 100, "there should have been more than 100 spans, had %d", len(syncer.spans)) | ||
| } | ||
|
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| var _ export.SpanSyncer = (*mockSyncer)(nil) | ||
|
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| type mockSyncer struct { | ||
| spans []export.SpanData | ||
| } | ||
|
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| func (m *mockSyncer) ExportSpan(ctx context.Context, spanData *export.SpanData) { | ||
| m.spans = append(m.spans, *spanData) | ||
| } | ||
|
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| func (m *mockSyncer) Reset() { | ||
| m.spans = []export.SpanData{} | ||
| } |
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