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65 lines
2.4 KiB
65 lines
2.4 KiB
// Copyright 2019 PingCAP, Inc.
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//
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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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// See the License for the specific language governing permissions and
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// limitations under the License.
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package infoschema_test
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import (
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"strings"
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. "github.com/pingcap/check"
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"github.com/pingcap/tidb/infoschema"
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"github.com/pingcap/tidb/util/set"
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)
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type metricSchemaSuite struct{}
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var _ = Suite(&metricSchemaSuite{})
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func (s *metricSchemaSuite) SetUpSuite(c *C) {
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}
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func (s *metricSchemaSuite) TearDownSuite(c *C) {
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}
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func (s *metricSchemaSuite) TestMetricSchemaDef(c *C) {
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for name, def := range infoschema.MetricTableMap {
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if strings.Contains(def.PromQL, "$QUANTILE") || strings.Contains(def.PromQL, "histogram_quantile") {
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c.Assert(def.Quantile > 0, IsTrue, Commentf("the quantile of metric table %v should > 0", name))
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} else {
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c.Assert(def.Quantile == 0, IsTrue, Commentf("metric table %v has quantile, but doesn't contain $QUANTILE in promQL ", name))
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}
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if strings.Contains(def.PromQL, "$LABEL_CONDITIONS") {
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c.Assert(len(def.Labels) > 0, IsTrue, Commentf("the labels of metric table %v should not be nil", name))
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} else {
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li := strings.Index(def.PromQL, "{")
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ri := strings.Index(def.PromQL, "}")
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// ri - li > 1 means already has label conditions, so no need $LABEL_CONDITIONS any more.
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if !(ri-li > 1) {
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c.Assert(len(def.Labels) == 0, IsTrue, Commentf("metric table %v has labels, but doesn't contain $LABEL_CONDITIONS in promQL", name))
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}
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}
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if strings.Contains(def.PromQL, " by (") {
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for _, label := range def.Labels {
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c.Assert(strings.Contains(def.PromQL, label), IsTrue, Commentf("metric table %v has labels, but doesn't contain label %v in promQL", name, label))
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}
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}
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if name != strings.ToLower(name) {
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c.Assert(name, Equals, strings.ToLower(name), Commentf("metric table name %v should be lower case", name))
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}
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// INSTANCE must be the first label
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if set.NewStringSet(def.Labels...).Exist("instance") {
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c.Assert(def.Labels[0], Equals, "instance", Commentf("metrics table %v: expect `instance`is the first label but got %v", name, def.Labels))
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}
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}
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}
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