mirror of https://github.com/prometheus/prometheus
45 lines
1.5 KiB
Go
45 lines
1.5 KiB
Go
// Copyright 2023 The Prometheus Authors
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package testutil
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import (
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"fmt"
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"testing"
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"github.com/google/go-cmp/cmp"
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"github.com/stretchr/testify/require"
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"github.com/prometheus/prometheus/model/labels"
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)
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// RequireEqual is a replacement for require.Equal using go-cmp adapted for
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// Prometheus data structures, instead of DeepEqual.
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func RequireEqual(t testing.TB, expected, actual interface{}, msgAndArgs ...interface{}) {
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t.Helper()
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RequireEqualWithOptions(t, expected, actual, nil, msgAndArgs...)
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}
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// RequireEqualWithOptions works like RequireEqual but allows extra cmp.Options.
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func RequireEqualWithOptions(t testing.TB, expected, actual interface{}, extra []cmp.Option, msgAndArgs ...interface{}) {
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t.Helper()
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options := append([]cmp.Option{cmp.Comparer(labels.Equal)}, extra...)
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if cmp.Equal(expected, actual, options...) {
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return
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}
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diff := cmp.Diff(expected, actual, options...)
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require.Fail(t, fmt.Sprintf("Not equal: \n"+
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"expected: %s\n"+
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"actual : %s%s", expected, actual, diff), msgAndArgs...)
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}
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