mirror of
https://github.com/prometheus-community/windows_exporter.git
synced 2026-10-17 10:09:05 +02:00
Jan-Otto KröpkeandClaude
9015955cfa
Signed-off-by: Claude <noreply@anthropic.com> Co-authored-by: Claude <noreply@anthropic.com>
83 lines
2.7 KiB
Go
83 lines
2.7 KiB
Go
// SPDX-License-Identifier: Apache-2.0
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//
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// Copyright 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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//go:build windows
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package utils_test
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import (
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"math"
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"testing"
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"github.com/prometheus-community/windows_exporter/internal/utils"
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"github.com/stretchr/testify/require"
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)
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func TestCounter(t *testing.T) {
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t.Parallel()
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c := utils.NewCounter(0)
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require.Equal(t, 0.0, c.Value()) //nolint:testifylint
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c.AddValue(10)
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require.Equal(t, 10.0, c.Value()) //nolint:testifylint
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c.AddValue(50)
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require.Equal(t, 50.0, c.Value()) //nolint:testifylint
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c.AddValue(math.MaxUint32 - 10)
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require.Equal(t, float64(math.MaxUint32)-10, c.Value()) //nolint:testifylint
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c.AddValue(20)
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require.Equal(t, float64(math.MaxUint32)+21, c.Value()) //nolint:testifylint
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c.AddValue(40)
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require.Equal(t, float64(math.MaxUint32)+41, c.Value()) //nolint:testifylint
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c.AddValue(math.MaxUint32 - 10)
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require.Equal(t, float64(math.MaxUint32)*2-9, c.Value()) //nolint:testifylint
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}
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func TestCounter32(t *testing.T) {
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t.Parallel()
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c := utils.NewCounter32(100, 0)
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require.Equal(t, 100.0, c.Update(100, false)) //nolint:testifylint
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require.Equal(t, 150.0, c.Update(150, false)) //nolint:testifylint
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require.Equal(t, float64(math.MaxUint32)-10, c.Update(math.MaxUint32-10, false)) //nolint:testifylint
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require.Equal(t, float64(math.MaxUint32)+21, c.Update(20, false)) //nolint:testifylint
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require.Equal(t, 5.0, c.Update(5, true)) //nolint:testifylint
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require.Equal(t, 15.0, c.Update(15, false)) //nolint:testifylint
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// Without restartBelow, any decrease is a wrap.
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require.Equal(t, float64(math.MaxUint32)+4, c.Update(3, false)) //nolint:testifylint
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}
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func TestCounter32RestartBelow(t *testing.T) {
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t.Parallel()
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c := utils.NewCounter32(50, 1<<31)
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require.Equal(t, 3.0, c.Update(3, false)) //nolint:testifylint
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require.Equal(t, float64(math.MaxUint32)-10, c.Update(math.MaxUint32-10, false)) //nolint:testifylint
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require.Equal(t, float64(math.MaxUint32)+21, c.Update(20, false)) //nolint:testifylint
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}
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