97 lines
3.4 KiB
Go
97 lines
3.4 KiB
Go
/*
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Copyright 2021 The Kubernetes 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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http://www.apache.org/licenses/LICENSE-2.0
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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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*/
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package version
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import (
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"bytes"
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apimachineryversion "k8s.io/apimachinery/pkg/version"
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"testing"
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)
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func TestPrintVersionSkewWarning(t *testing.T) {
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output := &bytes.Buffer{}
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testCases := []struct {
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name string
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clientVersion apimachineryversion.Info
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serverVersion apimachineryversion.Info
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isWarningExpected bool
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}{
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{
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name: "Should not warn if server and client versions are same",
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clientVersion: apimachineryversion.Info{GitVersion: "v1.19.1"},
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serverVersion: apimachineryversion.Info{GitVersion: "v1.19.1"},
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isWarningExpected: false,
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},
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{
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name: "Should not warn if server and client versions are same and server is alpha",
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clientVersion: apimachineryversion.Info{GitVersion: "v1.19.1"},
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serverVersion: apimachineryversion.Info{GitVersion: "v1.19.7-alpha"},
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isWarningExpected: false,
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},
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{
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name: "Should not warn if server and client versions are same and server is beta",
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clientVersion: apimachineryversion.Info{GitVersion: "v1.19.1"},
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serverVersion: apimachineryversion.Info{GitVersion: "v1.19.7-beta"},
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isWarningExpected: false,
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},
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{
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name: "Should not warn if server is 1 minor version ahead of client",
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clientVersion: apimachineryversion.Info{GitVersion: "v1.18.5"},
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serverVersion: apimachineryversion.Info{GitVersion: "v1.19.1"},
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isWarningExpected: false,
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},
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{
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name: "Should not warn if server is 1 minor version behind client",
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clientVersion: apimachineryversion.Info{GitVersion: "v1.19.1"},
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serverVersion: apimachineryversion.Info{GitVersion: "v1.18.5"},
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isWarningExpected: false,
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},
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{
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name: "Should warn if server is 2 minor versions ahead of client",
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clientVersion: apimachineryversion.Info{GitVersion: "v1.17.7"},
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serverVersion: apimachineryversion.Info{GitVersion: "v1.19.1"},
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isWarningExpected: true,
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},
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{
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name: "Should warn if server is 2 minor versions behind client",
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clientVersion: apimachineryversion.Info{GitVersion: "v1.19.1"},
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serverVersion: apimachineryversion.Info{GitVersion: "v1.17.7"},
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isWarningExpected: true,
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},
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{
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name: "Should warn if major versions are not equal",
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clientVersion: apimachineryversion.Info{GitVersion: "v1.19.1"},
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serverVersion: apimachineryversion.Info{GitVersion: "v2.19.1"},
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isWarningExpected: true,
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},
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}
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for _, tc := range testCases {
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t.Run(tc.name, func(t *testing.T) {
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output.Reset()
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printVersionSkewWarning(output, tc.clientVersion, tc.serverVersion)
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if tc.isWarningExpected && output.Len() == 0 {
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t.Error("warning was expected, but not written to the output")
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} else if !tc.isWarningExpected && output.Len() > 0 {
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t.Errorf("warning was not expected, but was written to the output: %s", output.String())
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}
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})
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}
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}
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