75 lines
2.3 KiB
Go
75 lines
2.3 KiB
Go
package infra
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import "testing"
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func TestFormatPromExposition(t *testing.T) {
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t.Run("varias series con y sin labels con timestamp", func(t *testing.T) {
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samples := []PromSample{
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{Name: "node_load1", Value: 0.42},
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{Name: "node_cpu_core_percent", Labels: map[string]string{"core": "0"}, Value: 12.5},
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{Name: "node_disk_used_bytes", Labels: map[string]string{"mount": "/"}, Value: 1024},
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}
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got := FormatPromExposition(samples, 1700000000000)
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want := "node_load1 0.42 1700000000000\n" +
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"node_cpu_core_percent{core=\"0\"} 12.5 1700000000000\n" +
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"node_disk_used_bytes{mount=\"/\"} 1024 1700000000000\n"
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if got != want {
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t.Errorf("got:\n%q\nwant:\n%q", got, want)
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}
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})
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t.Run("sin timestamp omite el campo", func(t *testing.T) {
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samples := []PromSample{
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{Name: "node_load1", Value: 0.42},
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{Name: "node_cpu_percent", Value: 3},
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}
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got := FormatPromExposition(samples, 0)
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want := "node_load1 0.42\n" +
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"node_cpu_percent 3\n"
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if got != want {
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t.Errorf("got:\n%q\nwant:\n%q", got, want)
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}
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})
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t.Run("labels ordenadas por clave deterministico", func(t *testing.T) {
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samples := []PromSample{
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{Name: "node_proc_cpu_percent", Labels: map[string]string{"pid": "42", "name": "claude"}, Value: 7.5},
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}
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got := FormatPromExposition(samples, 0)
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// "name" antes que "pid" alfabeticamente.
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want := "node_proc_cpu_percent{name=\"claude\",pid=\"42\"} 7.5\n"
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if got != want {
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t.Errorf("got:\n%q\nwant:\n%q", got, want)
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}
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})
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t.Run("escapa backslash comilla y newline en valor de label", func(t *testing.T) {
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samples := []PromSample{
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{Name: "node_proc_cpu_percent", Labels: map[string]string{"name": "a\\b\"c\nd"}, Value: 1},
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}
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got := FormatPromExposition(samples, 0)
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want := "node_proc_cpu_percent{name=\"a\\\\b\\\"c\\nd\"} 1\n"
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if got != want {
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t.Errorf("got:\n%q\nwant:\n%q", got, want)
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}
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})
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t.Run("sanitiza nombre de metrica invalido", func(t *testing.T) {
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samples := []PromSample{
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{Name: "node.cpu-percent!", Value: 5},
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}
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got := FormatPromExposition(samples, 0)
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want := "node_cpu_percent_ 5\n"
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if got != want {
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t.Errorf("got:\n%q\nwant:\n%q", got, want)
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}
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})
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t.Run("slice vacio produce string vacio", func(t *testing.T) {
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got := FormatPromExposition(nil, 1700000000000)
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if got != "" {
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t.Errorf("got %q, want empty string", got)
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}
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})
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}
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