prometheus

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// Copyright 2022 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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// Only build when go-fuzz is in use
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//go:build gofuzz
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package promql
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import (
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	"testing"
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	"github.com/stretchr/testify/require"
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)
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func TestfuzzParseMetricWithContentTypePanicOnInvalid(t *testing.T) {
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	defer func() {
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		if p := recover(); p == nil {
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			t.Error("invalid content type should panic")
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		} else {
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			err, ok := p.(error)
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			require.True(t, ok)
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			require.Contains(t, err.Error(), "duplicate parameter name")
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		}
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	}()
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	const invalidContentType = "application/openmetrics-text; charset=UTF-8; charset=utf-8"
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	fuzzParseMetricWithContentType([]byte{}, invalidContentType)
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}
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