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637 lines
15 KiB
637 lines
15 KiB
// Copyright 2017 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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package textparse |
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import ( |
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"io" |
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"testing" |
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|
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"github.com/stretchr/testify/require" |
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|
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"github.com/prometheus/prometheus/model/exemplar" |
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"github.com/prometheus/prometheus/model/labels" |
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) |
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func TestOpenMetricsParse(t *testing.T) { |
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input := `# HELP go_gc_duration_seconds A summary of the GC invocation durations. |
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# TYPE go_gc_duration_seconds summary |
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# UNIT go_gc_duration_seconds seconds |
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go_gc_duration_seconds{quantile="0"} 4.9351e-05 |
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go_gc_duration_seconds{quantile="0.25"} 7.424100000000001e-05 |
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go_gc_duration_seconds{quantile="0.5",a="b"} 8.3835e-05 |
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# HELP nohelp1 |
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# HELP help2 escape \ \n \\ \" \x chars |
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# UNIT nounit |
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go_gc_duration_seconds{quantile="1.0",a="b"} 8.3835e-05 |
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go_gc_duration_seconds_count 99 |
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some:aggregate:rate5m{a_b="c"} 1 |
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# HELP go_goroutines Number of goroutines that currently exist. |
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# TYPE go_goroutines gauge |
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go_goroutines 33 123.123 |
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# TYPE hh histogram |
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hh_bucket{le="+Inf"} 1 |
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# TYPE gh gaugehistogram |
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gh_bucket{le="+Inf"} 1 |
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# TYPE hhh histogram |
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hhh_bucket{le="+Inf"} 1 # {aa="bb"} 4 |
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# TYPE ggh gaugehistogram |
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ggh_bucket{le="+Inf"} 1 # {cc="dd",xx="yy"} 4 123.123 |
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# TYPE ii info |
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ii{foo="bar"} 1 |
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# TYPE ss stateset |
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ss{ss="foo"} 1 |
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ss{ss="bar"} 0 |
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ss{A="a"} 0 |
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# TYPE un unknown |
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_metric_starting_with_underscore 1 |
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testmetric{_label_starting_with_underscore="foo"} 1 |
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testmetric{label="\"bar\""} 1 |
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# TYPE foo counter |
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foo_total 17.0 1520879607.789 # {xx="yy"} 5` |
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input += "\n# HELP metric foo\x00bar" |
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input += "\nnull_byte_metric{a=\"abc\x00\"} 1" |
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input += "\n# EOF\n" |
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int64p := func(x int64) *int64 { return &x } |
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exp := []struct { |
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lset labels.Labels |
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m string |
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t *int64 |
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v float64 |
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typ MetricType |
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help string |
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unit string |
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comment string |
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e *exemplar.Exemplar |
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}{ |
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{ |
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m: "go_gc_duration_seconds", |
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help: "A summary of the GC invocation durations.", |
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}, { |
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m: "go_gc_duration_seconds", |
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typ: MetricTypeSummary, |
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}, { |
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m: "go_gc_duration_seconds", |
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unit: "seconds", |
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}, { |
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m: `go_gc_duration_seconds{quantile="0"}`, |
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v: 4.9351e-05, |
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lset: labels.FromStrings("__name__", "go_gc_duration_seconds", "quantile", "0"), |
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}, { |
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m: `go_gc_duration_seconds{quantile="0.25"}`, |
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v: 7.424100000000001e-05, |
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lset: labels.FromStrings("__name__", "go_gc_duration_seconds", "quantile", "0.25"), |
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}, { |
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m: `go_gc_duration_seconds{quantile="0.5",a="b"}`, |
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v: 8.3835e-05, |
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lset: labels.FromStrings("__name__", "go_gc_duration_seconds", "quantile", "0.5", "a", "b"), |
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}, { |
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m: "nohelp1", |
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help: "", |
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}, { |
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m: "help2", |
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help: "escape \\ \n \\ \" \\x chars", |
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}, { |
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m: "nounit", |
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unit: "", |
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}, { |
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m: `go_gc_duration_seconds{quantile="1.0",a="b"}`, |
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v: 8.3835e-05, |
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lset: labels.FromStrings("__name__", "go_gc_duration_seconds", "quantile", "1.0", "a", "b"), |
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}, { |
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m: `go_gc_duration_seconds_count`, |
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v: 99, |
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lset: labels.FromStrings("__name__", "go_gc_duration_seconds_count"), |
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}, { |
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m: `some:aggregate:rate5m{a_b="c"}`, |
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v: 1, |
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lset: labels.FromStrings("__name__", "some:aggregate:rate5m", "a_b", "c"), |
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}, { |
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m: "go_goroutines", |
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help: "Number of goroutines that currently exist.", |
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}, { |
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m: "go_goroutines", |
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typ: MetricTypeGauge, |
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}, { |
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m: `go_goroutines`, |
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v: 33, |
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t: int64p(123123), |
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lset: labels.FromStrings("__name__", "go_goroutines"), |
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}, { |
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m: "hh", |
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typ: MetricTypeHistogram, |
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}, { |
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m: `hh_bucket{le="+Inf"}`, |
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v: 1, |
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lset: labels.FromStrings("__name__", "hh_bucket", "le", "+Inf"), |
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}, { |
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m: "gh", |
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typ: MetricTypeGaugeHistogram, |
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}, { |
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m: `gh_bucket{le="+Inf"}`, |
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v: 1, |
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lset: labels.FromStrings("__name__", "gh_bucket", "le", "+Inf"), |
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}, { |
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m: "hhh", |
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typ: MetricTypeHistogram, |
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}, { |
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m: `hhh_bucket{le="+Inf"}`, |
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v: 1, |
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lset: labels.FromStrings("__name__", "hhh_bucket", "le", "+Inf"), |
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e: &exemplar.Exemplar{Labels: labels.FromStrings("aa", "bb"), Value: 4}, |
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}, { |
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m: "ggh", |
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typ: MetricTypeGaugeHistogram, |
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}, { |
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m: `ggh_bucket{le="+Inf"}`, |
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v: 1, |
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lset: labels.FromStrings("__name__", "ggh_bucket", "le", "+Inf"), |
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e: &exemplar.Exemplar{Labels: labels.FromStrings("cc", "dd", "xx", "yy"), Value: 4, HasTs: true, Ts: 123123}, |
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}, { |
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m: "ii", |
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typ: MetricTypeInfo, |
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}, { |
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m: `ii{foo="bar"}`, |
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v: 1, |
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lset: labels.FromStrings("__name__", "ii", "foo", "bar"), |
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}, { |
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m: "ss", |
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typ: MetricTypeStateset, |
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}, { |
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m: `ss{ss="foo"}`, |
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v: 1, |
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lset: labels.FromStrings("__name__", "ss", "ss", "foo"), |
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}, { |
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m: `ss{ss="bar"}`, |
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v: 0, |
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lset: labels.FromStrings("__name__", "ss", "ss", "bar"), |
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}, { |
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m: `ss{A="a"}`, |
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v: 0, |
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lset: labels.FromStrings("A", "a", "__name__", "ss"), |
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}, { |
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m: "un", |
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typ: MetricTypeUnknown, |
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}, { |
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m: "_metric_starting_with_underscore", |
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v: 1, |
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lset: labels.FromStrings("__name__", "_metric_starting_with_underscore"), |
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}, { |
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m: "testmetric{_label_starting_with_underscore=\"foo\"}", |
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v: 1, |
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lset: labels.FromStrings("__name__", "testmetric", "_label_starting_with_underscore", "foo"), |
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}, { |
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m: "testmetric{label=\"\\\"bar\\\"\"}", |
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v: 1, |
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lset: labels.FromStrings("__name__", "testmetric", "label", `"bar"`), |
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}, { |
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m: "foo", |
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typ: MetricTypeCounter, |
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}, { |
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m: "foo_total", |
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v: 17, |
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lset: labels.FromStrings("__name__", "foo_total"), |
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t: int64p(1520879607789), |
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e: &exemplar.Exemplar{Labels: labels.FromStrings("xx", "yy"), Value: 5}, |
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}, { |
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m: "metric", |
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help: "foo\x00bar", |
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}, { |
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m: "null_byte_metric{a=\"abc\x00\"}", |
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v: 1, |
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lset: labels.FromStrings("__name__", "null_byte_metric", "a", "abc\x00"), |
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}, |
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} |
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p := NewOpenMetricsParser([]byte(input)) |
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i := 0 |
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var res labels.Labels |
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for { |
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et, err := p.Next() |
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if err == io.EOF { |
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break |
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} |
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require.NoError(t, err) |
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switch et { |
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case EntrySeries: |
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m, ts, v := p.Series() |
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var e exemplar.Exemplar |
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p.Metric(&res) |
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found := p.Exemplar(&e) |
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require.Equal(t, exp[i].m, string(m)) |
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if e.HasTs { |
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require.Equal(t, exp[i].t, ts) |
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} |
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require.Equal(t, exp[i].v, v) |
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require.Equal(t, exp[i].lset, res) |
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if exp[i].e == nil { |
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require.Equal(t, false, found) |
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} else { |
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require.Equal(t, true, found) |
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require.Equal(t, *exp[i].e, e) |
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} |
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res = res[:0] |
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case EntryType: |
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m, typ := p.Type() |
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require.Equal(t, exp[i].m, string(m)) |
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require.Equal(t, exp[i].typ, typ) |
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case EntryHelp: |
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m, h := p.Help() |
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require.Equal(t, exp[i].m, string(m)) |
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require.Equal(t, exp[i].help, string(h)) |
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case EntryUnit: |
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m, u := p.Unit() |
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require.Equal(t, exp[i].m, string(m)) |
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require.Equal(t, exp[i].unit, string(u)) |
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case EntryComment: |
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require.Equal(t, exp[i].comment, string(p.Comment())) |
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} |
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i++ |
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} |
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require.Equal(t, len(exp), i) |
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} |
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func TestOpenMetricsParseErrors(t *testing.T) { |
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cases := []struct { |
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input string |
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err string |
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}{ |
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// Happy cases. EOF is returned by the parser at the end of valid |
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// data. |
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{ |
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input: "# EOF", |
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err: "EOF", |
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}, |
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{ |
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input: "# EOF\n", |
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err: "EOF", |
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}, |
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// Unhappy cases. |
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{ |
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input: "", |
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err: "data does not end with # EOF", |
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}, |
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{ |
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input: "\n", |
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err: "\"INVALID\" \"\\n\" is not a valid start token", |
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}, |
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{ |
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input: "metric", |
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err: "expected value after metric, got \"EOF\"", |
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}, |
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{ |
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input: "metric 1", |
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err: "data does not end with # EOF", |
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}, |
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{ |
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input: "metric 1\n", |
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err: "data does not end with # EOF", |
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}, |
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{ |
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input: "metric_total 1 # {aa=\"bb\"} 4", |
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err: "data does not end with # EOF", |
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}, |
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{ |
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input: "a\n#EOF\n", |
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err: "expected value after metric, got \"INVALID\"", |
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}, |
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{ |
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input: "\n\n#EOF\n", |
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err: "\"INVALID\" \"\\n\" is not a valid start token", |
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}, |
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{ |
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input: " a 1\n#EOF\n", |
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err: "\"INVALID\" \" \" is not a valid start token", |
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}, |
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{ |
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input: "9\n#EOF\n", |
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err: "\"INVALID\" \"9\" is not a valid start token", |
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}, |
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{ |
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input: "# TYPE u untyped\n#EOF\n", |
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err: "invalid metric type \"untyped\"", |
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}, |
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{ |
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input: "# TYPE c counter \n#EOF\n", |
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err: "invalid metric type \"counter \"", |
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}, |
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{ |
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input: "# TYPE c counter\n#EOF\n", |
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err: "\"INVALID\" \" \" is not a valid start token", |
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}, |
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{ |
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input: "# TYPE \n#EOF\n", |
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err: "expected metric name after TYPE, got \"INVALID\"", |
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}, |
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{ |
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input: "# TYPE m\n#EOF\n", |
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err: "expected text in TYPE", |
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}, |
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{ |
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input: "# UNIT metric suffix\n#EOF\n", |
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err: "unit not a suffix of metric \"metric\"", |
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}, |
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{ |
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input: "# UNIT metricsuffix suffix\n#EOF\n", |
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err: "unit not a suffix of metric \"metricsuffix\"", |
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}, |
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{ |
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input: "# UNIT m suffix\n#EOF\n", |
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err: "unit not a suffix of metric \"m\"", |
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}, |
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{ |
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input: "# UNIT \n#EOF\n", |
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err: "expected metric name after UNIT, got \"INVALID\"", |
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}, |
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{ |
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input: "# UNIT m\n#EOF\n", |
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err: "expected text in UNIT", |
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}, |
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{ |
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input: "# HELP \n#EOF\n", |
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err: "expected metric name after HELP, got \"INVALID\"", |
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}, |
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{ |
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input: "# HELP m\n#EOF\n", |
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err: "expected text in HELP", |
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}, |
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{ |
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input: "a\t1\n#EOF\n", |
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err: "expected value after metric, got \"INVALID\"", |
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}, |
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{ |
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input: "a 1\t2\n#EOF\n", |
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err: "strconv.ParseFloat: parsing \"1\\t2\": invalid syntax", |
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}, |
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{ |
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input: "a 1 2 \n#EOF\n", |
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err: "expected next entry after timestamp, got \"INVALID\"", |
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}, |
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{ |
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input: "a 1 2 #\n#EOF\n", |
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err: "expected next entry after timestamp, got \"TIMESTAMP\"", |
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}, |
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{ |
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input: "a 1 1z\n#EOF\n", |
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err: "strconv.ParseFloat: parsing \"1z\": invalid syntax", |
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}, |
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{ |
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input: " # EOF\n", |
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err: "\"INVALID\" \" \" is not a valid start token", |
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}, |
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{ |
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input: "# EOF\na 1", |
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err: "unexpected data after # EOF", |
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}, |
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{ |
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input: "# EOF\n\n", |
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err: "unexpected data after # EOF", |
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}, |
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{ |
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input: "# EOFa 1", |
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err: "unexpected data after # EOF", |
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}, |
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{ |
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input: "#\tTYPE c counter\n", |
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err: "\"INVALID\" \"\\t\" is not a valid start token", |
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}, |
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{ |
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input: "# TYPE c counter\n", |
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err: "invalid metric type \" counter\"", |
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}, |
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{ |
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input: "a 1 1 1\n# EOF\n", |
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err: "expected next entry after timestamp, got \"TIMESTAMP\"", |
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}, |
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{ |
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input: "a{b='c'} 1\n# EOF\n", |
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err: "expected label value, got \"INVALID\"", |
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}, |
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{ |
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input: "a{b=\"c\",} 1\n# EOF\n", |
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err: "expected label name, got \"BCLOSE\"", |
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}, |
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{ |
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input: "a{,b=\"c\"} 1\n# EOF\n", |
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err: "expected label name or left brace, got \"COMMA\"", |
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}, |
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{ |
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input: "a{b=\"c\"d=\"e\"} 1\n# EOF\n", |
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err: "expected comma, got \"LNAME\"", |
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}, |
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{ |
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input: "a{b=\"c\",,d=\"e\"} 1\n# EOF\n", |
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err: "expected label name, got \"COMMA\"", |
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}, |
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{ |
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input: "a{b=\n# EOF\n", |
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err: "expected label value, got \"INVALID\"", |
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}, |
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{ |
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input: "a{\xff=\"foo\"} 1\n# EOF\n", |
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err: "expected label name or left brace, got \"INVALID\"", |
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}, |
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{ |
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input: "a{b=\"\xff\"} 1\n# EOF\n", |
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err: "invalid UTF-8 label value", |
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}, |
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{ |
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input: "a true\n", |
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err: "strconv.ParseFloat: parsing \"true\": invalid syntax", |
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}, |
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{ |
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input: "something_weird{problem=\"\n# EOF\n", |
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err: "expected label value, got \"INVALID\"", |
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}, |
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{ |
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input: "empty_label_name{=\"\"} 0\n# EOF\n", |
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err: "expected label name or left brace, got \"EQUAL\"", |
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}, |
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{ |
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input: "foo 1_2\n\n# EOF\n", |
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err: "unsupported character in float", |
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}, |
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{ |
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input: "foo 0x1p-3\n\n# EOF\n", |
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err: "unsupported character in float", |
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}, |
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{ |
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input: "foo 0x1P-3\n\n# EOF\n", |
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err: "unsupported character in float", |
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}, |
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{ |
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input: "foo 0 1_2\n\n# EOF\n", |
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err: "unsupported character in float", |
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}, |
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{ |
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input: "custom_metric_total 1 # {aa=bb}\n# EOF\n", |
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err: "expected label value, got \"INVALID\"", |
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}, |
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{ |
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input: "custom_metric_total 1 # {aa=\"bb\"}\n# EOF\n", |
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err: "expected value after exemplar labels, got \"INVALID\"", |
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}, |
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{ |
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input: `custom_metric_total 1 # {aa="bb"}`, |
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err: "expected value after exemplar labels, got \"EOF\"", |
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}, |
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{ |
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input: `custom_metric 1 # {aa="bb"}`, |
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err: "metric name custom_metric does not support exemplars", |
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}, |
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{ |
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input: `custom_metric_total 1 # {aa="bb",,cc="dd"} 1`, |
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err: "expected label name, got \"COMMA\"", |
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}, |
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{ |
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input: `custom_metric_total 1 # {aa="bb"} 1_2`, |
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err: "unsupported character in float", |
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}, |
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{ |
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input: `custom_metric_total 1 # {aa="bb"} 0x1p-3`, |
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err: "unsupported character in float", |
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}, |
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{ |
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input: `custom_metric_total 1 # {aa="bb"} true`, |
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err: "strconv.ParseFloat: parsing \"true\": invalid syntax", |
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}, |
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{ |
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input: `custom_metric_total 1 # {aa="bb",cc=}`, |
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err: "expected label value, got \"INVALID\"", |
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}, |
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{ |
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input: `custom_metric_total 1 # {aa=\"\xff\"} 9.0`, |
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err: "expected label value, got \"INVALID\"", |
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}, |
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{ |
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input: `{b="c",} 1`, |
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err: `"INVALID" "{" is not a valid start token`, |
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}, |
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{ |
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input: `a 1 NaN`, |
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err: `invalid timestamp`, |
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}, |
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{ |
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input: `a 1 -Inf`, |
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err: `invalid timestamp`, |
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}, |
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{ |
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input: `a 1 Inf`, |
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err: `invalid timestamp`, |
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}, |
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{ |
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input: "# TYPE hhh histogram\nhhh_bucket{le=\"+Inf\"} 1 # {aa=\"bb\"} 4 NaN", |
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err: `invalid exemplar timestamp`, |
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}, |
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{ |
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input: "# TYPE hhh histogram\nhhh_bucket{le=\"+Inf\"} 1 # {aa=\"bb\"} 4 -Inf", |
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err: `invalid exemplar timestamp`, |
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}, |
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{ |
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input: "# TYPE hhh histogram\nhhh_bucket{le=\"+Inf\"} 1 # {aa=\"bb\"} 4 Inf", |
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err: `invalid exemplar timestamp`, |
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}, |
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} |
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|
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for i, c := range cases { |
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p := NewOpenMetricsParser([]byte(c.input)) |
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var err error |
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for err == nil { |
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_, err = p.Next() |
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} |
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require.Equal(t, c.err, err.Error(), "test %d: %s", i, c.input) |
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} |
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} |
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|
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func TestOMNullByteHandling(t *testing.T) { |
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cases := []struct { |
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input string |
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err string |
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}{ |
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{ |
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input: "null_byte_metric{a=\"abc\x00\"} 1\n# EOF\n", |
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err: "", |
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}, |
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{ |
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input: "a{b=\"\x00ss\"} 1\n# EOF\n", |
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err: "", |
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}, |
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{ |
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input: "a{b=\"\x00\"} 1\n# EOF\n", |
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err: "", |
|
}, |
|
{ |
|
input: "a{b=\"\x00\"} 1\n# EOF", |
|
err: "", |
|
}, |
|
{ |
|
input: "a{b=\x00\"ssss\"} 1\n# EOF\n", |
|
err: "expected label value, got \"INVALID\"", |
|
}, |
|
{ |
|
input: "a{b=\"\x00", |
|
err: "expected label value, got \"INVALID\"", |
|
}, |
|
{ |
|
input: "a{b\x00=\"hiih\"} 1", |
|
err: "expected equal, got \"INVALID\"", |
|
}, |
|
{ |
|
input: "a\x00{b=\"ddd\"} 1", |
|
err: "expected value after metric, got \"INVALID\"", |
|
}, |
|
{ |
|
input: "#", |
|
err: "\"INVALID\" \" \" is not a valid start token", |
|
}, |
|
{ |
|
input: "# H", |
|
err: "\"INVALID\" \" \" is not a valid start token", |
|
}, |
|
{ |
|
input: "custom_metric_total 1 # {b=\x00\"ssss\"} 1\n", |
|
err: "expected label value, got \"INVALID\"", |
|
}, |
|
{ |
|
input: "custom_metric_total 1 # {b=\"\x00ss\"} 1\n", |
|
err: "expected label value, got \"INVALID\"", |
|
}, |
|
} |
|
|
|
for i, c := range cases { |
|
p := NewOpenMetricsParser([]byte(c.input)) |
|
var err error |
|
for err == nil { |
|
_, err = p.Next() |
|
} |
|
|
|
if c.err == "" { |
|
require.Equal(t, io.EOF, err, "test %d", i) |
|
continue |
|
} |
|
|
|
require.Equal(t, c.err, err.Error(), "test %d", i) |
|
} |
|
}
|
|
|