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package hdrhistogram
import (
"github.com/google/go-cmp/cmp"
"github.com/stretchr/testify/assert"
"testing"
)
func TestHistogram_encodeIntoByteBuffer(t *testing.T) {
hist := New(1, 9007199254740991, 2)
err := hist.RecordValue(42)
assert.Nil(t, err)
buffer, err := hist.encodeIntoByteBuffer()
assert.Nil(t, err)
assert.Equal(t, 42, buffer.Len())
}
func TestHistogram_DumpLoadWhiteBox(t *testing.T) {
hist := New(1, 100000, 3)
for i := 1; i <= 100; i++ {
err := hist.RecordValue(int64(i))
assert.Nil(t, err)
}
dumpedHistogram, err := hist.Encode(V2CompressedEncodingCookieBase)
assert.Nil(t, err)
hist2, err := Decode(dumpedHistogram)
assert.Nil(t, err)
assert.Equal(t, hist.totalCount, hist2.totalCount)
assert.Equal(t, hist.countsLen, hist2.countsLen)
if diff := cmp.Diff(hist.counts, hist2.counts); diff != "" {
t.Errorf("counts differs: (-got +want)\n%s", diff)
}
}
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