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c05ebef306
Rather than removing the previous implementation of SanitizeLabelName, offer another version named SanitizeFullLabelName that achieved the desired requirements, without breaking existing Prometheus code. Update testing to validate correctness of new variant. Signed-off-by: Nick Moore <nicholas.moore@grafana.com>
80 lines
2.8 KiB
Go
80 lines
2.8 KiB
Go
// Copyright 2016 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 strutil
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import (
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"testing"
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"github.com/stretchr/testify/require"
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)
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type linkTest struct {
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expression string
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expectedGraphLink string
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expectedTableLink string
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}
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var linkTests = []linkTest{
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{
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"sum(incoming_http_requests_total) by (system)",
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"/graph?g0.expr=sum%28incoming_http_requests_total%29+by+%28system%29&g0.tab=0",
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"/graph?g0.expr=sum%28incoming_http_requests_total%29+by+%28system%29&g0.tab=1",
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},
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{
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"sum(incoming_http_requests_total{system=\"trackmetadata\"})",
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"/graph?g0.expr=sum%28incoming_http_requests_total%7Bsystem%3D%22trackmetadata%22%7D%29&g0.tab=0",
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"/graph?g0.expr=sum%28incoming_http_requests_total%7Bsystem%3D%22trackmetadata%22%7D%29&g0.tab=1",
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},
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}
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func TestLink(t *testing.T) {
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for _, tt := range linkTests {
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graphLink := GraphLinkForExpression(tt.expression)
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require.Equal(t, tt.expectedGraphLink, graphLink,
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"GraphLinkForExpression failed for expression (%#q)", tt.expression)
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tableLink := TableLinkForExpression(tt.expression)
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require.Equal(t, tt.expectedTableLink, tableLink,
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"TableLinkForExpression failed for expression (%#q)", tt.expression)
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}
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}
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func TestSanitizeLabelName(t *testing.T) {
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actual := SanitizeLabelName("fooClientLABEL")
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expected := "fooClientLABEL"
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require.Equal(t, expected, actual, "SanitizeLabelName failed for label (%s)", expected)
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actual = SanitizeLabelName("barClient.LABEL$$##")
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expected = "barClient_LABEL____"
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require.Equal(t, expected, actual, "SanitizeLabelName failed for label (%s)", expected)
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}
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func TestSanitizeFullLabelName(t *testing.T) {
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actual := SanitizeFullLabelName("fooClientLABEL")
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expected := "fooClientLABEL"
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require.Equal(t, expected, actual, "SanitizeFullLabelName failed for label (%s)", expected)
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actual = SanitizeFullLabelName("barClient.LABEL$$##")
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expected = "barClient_LABEL____"
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require.Equal(t, expected, actual, "SanitizeFullLabelName failed for label (%s)", expected)
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actual = SanitizeFullLabelName("0zerothClient1LABEL")
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expected = "_zerothClient1LABEL"
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require.Equal(t, expected, actual, "SanitizeFullLabelName failed for label (%s)", expected)
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actual = SanitizeFullLabelName("")
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expected = "_"
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require.Equal(t, expected, actual, "SanitizeFullLabelName failed for the empty label")
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}
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