da4159513e
* Metrics interface * Prometheus implementation * NoOp implementation Co-authored-by: chris <chris@Profanity.local>
74 lines
2.4 KiB
Go
74 lines
2.4 KiB
Go
package prometheus
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import (
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"testing"
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"time"
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"github.com/micro/go-micro/v3/metrics"
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"github.com/stretchr/testify/assert"
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)
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func TestPrometheusReporter(t *testing.T) {
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// Make a Reporter:
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reporter, err := New(metrics.Path("/prometheus"), metrics.DefaultTags(map[string]string{"service": "prometheus-test"}))
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assert.NoError(t, err)
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assert.NotNil(t, reporter)
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assert.Equal(t, "prometheus-test", reporter.options.DefaultTags["service"])
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assert.Equal(t, ":9000", reporter.options.Address)
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assert.Equal(t, "/prometheus", reporter.options.Path)
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// Check that our implementation is valid:
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assert.Implements(t, new(metrics.Reporter), reporter)
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// Test tag conversion:
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tags := metrics.Tags{
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"tag1": "false",
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"tag2": "true",
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}
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convertedTags := reporter.convertTags(tags)
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assert.Equal(t, "false", convertedTags["tag1"])
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assert.Equal(t, "true", convertedTags["tag2"])
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// Test tag enumeration:
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listedTags := reporter.listTagKeys(tags)
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assert.Contains(t, listedTags, "tag1")
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assert.Contains(t, listedTags, "tag2")
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// Test string cleaning:
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preparedMetricName := reporter.stripUnsupportedCharacters("some.kind,of tag")
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assert.Equal(t, "some_kind_oftag", preparedMetricName)
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// Test MetricFamilies:
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metricFamily := reporter.newMetricFamily()
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// Counters:
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assert.NotNil(t, metricFamily.getCounter("testCounter", []string{"test", "counter"}))
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assert.Len(t, metricFamily.counters, 1)
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// Gauges:
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assert.NotNil(t, metricFamily.getGauge("testGauge", []string{"test", "gauge"}))
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assert.Len(t, metricFamily.gauges, 1)
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// Timings:
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assert.NotNil(t, metricFamily.getTiming("testTiming", []string{"test", "timing"}))
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assert.Len(t, metricFamily.timings, 1)
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// Test submitting metrics through the interface methods:
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assert.NoError(t, reporter.Count("test.counter.1", 6, tags))
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assert.NoError(t, reporter.Count("test.counter.2", 19, tags))
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assert.NoError(t, reporter.Count("test.counter.1", 5, tags))
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assert.NoError(t, reporter.Gauge("test.gauge.1", 99, tags))
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assert.NoError(t, reporter.Gauge("test.gauge.2", 55, tags))
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assert.NoError(t, reporter.Gauge("test.gauge.1", 98, tags))
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assert.NoError(t, reporter.Timing("test.timing.1", time.Second, tags))
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assert.NoError(t, reporter.Timing("test.timing.2", time.Minute, tags))
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assert.Len(t, reporter.metrics.counters, 2)
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assert.Len(t, reporter.metrics.gauges, 2)
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assert.Len(t, reporter.metrics.timings, 2)
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// Test reading back the metrics:
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// This could be done by hitting the /metrics endpoint
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}
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