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// Copyright The OpenTelemetry Authors
// SPDX-License-Identifier: Apache-2.0
package tracetest
import (
"context"
"fmt"
"testing"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
// TestNoop tests only that the no-op does not crash in different scenarios.
func TestNoop(t *testing.T) {
nsb := NewNoopExporter()
require.NoError(t, nsb.ExportSpans(context.Background(), nil))
require.NoError(t, nsb.ExportSpans(context.Background(), make(SpanStubs, 10).Snapshots()))
require.NoError(t, nsb.ExportSpans(context.Background(), make(SpanStubs, 0, 10).Snapshots()))
}
func TestNewInMemoryExporter(t *testing.T) {
imsb := NewInMemoryExporter()
require.NoError(t, imsb.ExportSpans(context.Background(), nil))
assert.Empty(t, imsb.GetSpans())
input := make(SpanStubs, 10)
for i := 0; i < 10; i++ {
input[i] = SpanStub{Name: fmt.Sprintf("span %d", i)}
}
require.NoError(t, imsb.ExportSpans(context.Background(), input.Snapshots()))
sds := imsb.GetSpans()
assert.Len(t, sds, 10)
for i, sd := range sds {
assert.Equal(t, input[i], sd)
}
imsb.Reset()
// Ensure that operations on the internal storage does not change the previously returned value.
assert.Len(t, sds, 10)
assert.Empty(t, imsb.GetSpans())
require.NoError(t, imsb.ExportSpans(context.Background(), input.Snapshots()[0:1]))
sds = imsb.GetSpans()
assert.Len(t, sds, 1)
assert.Equal(t, input[0], sds[0])
}
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