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// Copyright (C) 2019-2023 Algorand, Inc.
// This file is part of go-algorand
//
// go-algorand is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as
// published by the Free Software Foundation, either version 3 of the
// License, or (at your option) any later version.
//
// go-algorand is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with go-algorand. If not, see <https://www.gnu.org/licenses/>.
package metrics
import (
"strings"
"testing"
"github.com/algorand/go-algorand/test/partitiontest"
"github.com/stretchr/testify/require"
)
func TestWriteAdd(t *testing.T) {
partitiontest.PartitionTest(t)
// Test AddMetrics and WriteMetrics with a counter
counter := MakeCounter(MetricName{Name: "gauge-name", Description: "gauge description"})
counter.AddUint64(12, nil)
labelCounter := MakeCounter(MetricName{Name: "label-counter", Description: "counter with labels"})
labelCounter.AddUint64(5, map[string]string{"label": "a label value"})
results := make(map[string]float64)
DefaultRegistry().AddMetrics(results)
require.Equal(t, 2, len(results), "results", results)
require.Contains(t, results, "gauge-name")
require.InDelta(t, 12, results["gauge-name"], 0.01)
require.Contains(t, results, "label-counter_label__a_label_value_")
require.InDelta(t, 5, results["label-counter_label__a_label_value_"], 0.01)
bufBefore := strings.Builder{}
DefaultRegistry().WriteMetrics(&bufBefore, "label")
require.True(t, bufBefore.Len() > 0)
DefaultRegistry().AddMetrics(results)
require.Contains(t, results, "gauge-name")
require.InDelta(t, 12, results["gauge-name"], 0.01)
// not included in string builder
bufAfter := strings.Builder{}
DefaultRegistry().WriteMetrics(&bufAfter, "label")
require.Equal(t, bufBefore.String(), bufAfter.String())
counter.Deregister(nil)
labelCounter.Deregister(nil)
}
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