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4f30c90e62
This is a port of #8470 and #8501 from the former mainline branch, in support of #2600 and #9076. No additional changes other than checking out the code have been implemented in this PR. A subsequent PR will incorporate this code.
63 lines
1.2 KiB
Go
63 lines
1.2 KiB
Go
package main_test
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import (
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"bytes"
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"io"
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"testing"
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"github.com/stretchr/testify/require"
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metricsdiff "github.com/tendermint/tendermint/scripts/metricsgen/metricsdiff"
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)
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func TestDiff(t *testing.T) {
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for _, tc := range []struct {
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name string
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aContents string
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bContents string
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want string
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}{
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{
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name: "labels",
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aContents: `
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metric_one{label_one="content", label_two="content"} 0
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`,
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bContents: `
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metric_one{label_three="content", label_four="content"} 0
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`,
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want: `Label changes:
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Metric: metric_one
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+++ label_three
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+++ label_four
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--- label_one
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--- label_two
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`,
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},
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{
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name: "metrics",
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aContents: `
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metric_one{label_one="content"} 0
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`,
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bContents: `
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metric_two{label_two="content"} 0
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`,
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want: `Metric changes:
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+++ metric_two
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--- metric_one
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`,
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},
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} {
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t.Run(tc.name, func(t *testing.T) {
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bufA := bytes.NewBuffer([]byte{})
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bufB := bytes.NewBuffer([]byte{})
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_, err := io.WriteString(bufA, tc.aContents)
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require.NoError(t, err)
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_, err = io.WriteString(bufB, tc.bContents)
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require.NoError(t, err)
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md, err := metricsdiff.DiffFromReaders(bufA, bufB)
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require.NoError(t, err)
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require.Equal(t, tc.want, md.String())
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})
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}
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}
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