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259bab9bff
Updates tailscale/corp#29650 Change-Id: Iad4e4ccd9d68ebb1d1a12f335cc5295d0bd05b60 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
40 lines
929 B
Go
40 lines
929 B
Go
// Copyright (c) Tailscale Inc & AUTHORS
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// SPDX-License-Identifier: BSD-3-Clause
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package promvarz
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import (
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"expvar"
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"net/http"
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"net/http/httptest"
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"strings"
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"testing"
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"github.com/prometheus/client_golang/prometheus"
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"github.com/prometheus/client_golang/prometheus/promauto"
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"github.com/prometheus/client_golang/prometheus/testutil"
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)
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var (
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testVar1 = expvar.NewInt("gauge_promvarz_test_expvar")
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testVar2 = promauto.NewGauge(prometheus.GaugeOpts{Name: "promvarz_test_native"})
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)
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func TestHandler(t *testing.T) {
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testVar1.Set(42)
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testVar2.Set(4242)
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svr := httptest.NewServer(http.HandlerFunc(handler))
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defer svr.Close()
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want := `
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# TYPE promvarz_test_expvar gauge
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promvarz_test_expvar 42
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# TYPE promvarz_test_native gauge
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promvarz_test_native 4242
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`
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if err := testutil.ScrapeAndCompare(svr.URL, strings.NewReader(want), "promvarz_test_expvar", "promvarz_test_native"); err != nil {
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t.Error(err)
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}
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}
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