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95 lines
4 KiB
Go
95 lines
4 KiB
Go
package metrics
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import (
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"testing"
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"github.com/prometheus/client_golang/prometheus/testutil"
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)
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func TestUpdateEcosystemStats(t *testing.T) {
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UpdateEcosystemStats([]EcosystemStats{
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{Ecosystem: "npm", Packages: 10, Versions: 25, Artifacts: 40, CacheSize: 1500, Downloads: 4, DownloadedBytes: 3500},
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{Ecosystem: "cargo", Packages: 2, Versions: 3, Artifacts: 3, CacheSize: 200, Downloads: 10, DownloadedBytes: 2000},
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})
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if got := testutil.ToFloat64(EcosystemDownloadedBytes.WithLabelValues("npm")); got != 3500 {
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t.Errorf("npm downloaded bytes = %v, want 3500", got)
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}
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if got := testutil.ToFloat64(EcosystemDownloads.WithLabelValues("npm")); got != 4 {
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t.Errorf("npm downloads = %v, want 4", got)
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}
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if got := testutil.ToFloat64(EcosystemCacheSize.WithLabelValues("cargo")); got != 200 {
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t.Errorf("cargo cache size = %v, want 200", got)
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}
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if got := testutil.ToFloat64(EcosystemCachedArtifacts.WithLabelValues("npm")); got != 40 {
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t.Errorf("npm cached artifacts = %v, want 40", got)
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}
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if got := testutil.ToFloat64(EcosystemPackages.WithLabelValues("npm")); got != 10 {
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t.Errorf("npm packages = %v, want 10", got)
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}
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if got := testutil.ToFloat64(EcosystemVersions.WithLabelValues("npm")); got != 25 {
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t.Errorf("npm versions = %v, want 25", got)
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}
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}
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// A refresh that no longer mentions an ecosystem must drop its series rather
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// than leave it frozen at the last observed value.
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func TestUpdateEcosystemStatsDropsStaleSeries(t *testing.T) {
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UpdateEcosystemStats([]EcosystemStats{
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{Ecosystem: "npm", DownloadedBytes: 3500},
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{Ecosystem: "gem", DownloadedBytes: 900},
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})
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if got := testutil.CollectAndCount(EcosystemDownloadedBytes); got != 2 {
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t.Fatalf("expected 2 series after first refresh, got %d", got)
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}
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UpdateEcosystemStats([]EcosystemStats{{Ecosystem: "npm", DownloadedBytes: 4000}})
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if got := testutil.CollectAndCount(EcosystemDownloadedBytes); got != 1 {
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t.Errorf("expected 1 series after gem disappeared, got %d", got)
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}
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if got := testutil.ToFloat64(EcosystemDownloadedBytes.WithLabelValues("npm")); got != 4000 {
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t.Errorf("npm downloaded bytes = %v, want 4000", got)
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}
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}
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// Ecosystem labels are normalized so these gauges join against the other
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// metrics that take their ecosystem from a package record.
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func TestUpdateEcosystemStatsNormalizesLabels(t *testing.T) {
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UpdateEcosystemStats([]EcosystemStats{{Ecosystem: "NPM", DownloadedBytes: 12}})
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if got := testutil.ToFloat64(EcosystemDownloadedBytes.WithLabelValues("npm")); got != 12 {
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t.Errorf("normalized npm gauge = %v, want 12", got)
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}
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}
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// GetEcosystemStats groups by the raw packages.ecosystem column, so a database
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// carrying both spellings of an aliased ecosystem yields two rows that
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// normalize to one label. They must sum rather than overwrite each other.
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func TestUpdateEcosystemStatsSumsAliasedRows(t *testing.T) {
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UpdateEcosystemStats([]EcosystemStats{
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{Ecosystem: "gem", DownloadedBytes: 100, CacheSize: 10, Packages: 1},
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{Ecosystem: "rubygems", DownloadedBytes: 200, CacheSize: 20, Packages: 2},
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{Ecosystem: "npm", DownloadedBytes: 50, CacheSize: 5, Packages: 3},
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})
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if got := testutil.ToFloat64(EcosystemDownloadedBytes.WithLabelValues("rubygems")); got != 300 {
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t.Errorf("rubygems downloaded bytes = %v, want 300", got)
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}
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if got := testutil.ToFloat64(EcosystemCacheSize.WithLabelValues("rubygems")); got != 30 {
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t.Errorf("rubygems cache size = %v, want 30", got)
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}
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if got := testutil.ToFloat64(EcosystemPackages.WithLabelValues("rubygems")); got != 3 {
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t.Errorf("rubygems packages = %v, want 3", got)
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}
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// An unaliased ecosystem is unaffected.
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if got := testutil.ToFloat64(EcosystemDownloadedBytes.WithLabelValues("npm")); got != 50 {
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t.Errorf("npm downloaded bytes = %v, want 50", got)
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}
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// A later refresh replaces the value rather than adding to it.
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UpdateEcosystemStats([]EcosystemStats{{Ecosystem: "npm", DownloadedBytes: 50}})
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if got := testutil.ToFloat64(EcosystemDownloadedBytes.WithLabelValues("npm")); got != 50 {
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t.Errorf("npm downloaded bytes after a second refresh = %v, want 50", got)
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}
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}
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