pkg/version/version_test.go

93 lines
2.6 KiB
Go

/*
Copyright 2019 The Knative Authors
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package version
import (
"errors"
"os"
"testing"
"k8s.io/apimachinery/pkg/version"
)
type testVersioner struct {
version string
err error
}
func (t *testVersioner) ServerVersion() (*version.Info, error) {
return &version.Info{GitVersion: t.version}, t.err
}
func TestVersionCheck(t *testing.T) {
tests := []struct {
name string
actualVersion *testVersioner
versionOverride string
wantError bool
}{{
name: "greater version (patch)",
actualVersion: &testVersioner{version: "v1.15.1"},
}, {
name: "greater version (minor)",
actualVersion: &testVersioner{version: "v1.16.0"},
}, {
name: "same version",
actualVersion: &testVersioner{version: "v1.15.0"},
}, {
name: "same version with build",
actualVersion: &testVersioner{version: "v1.15.0+k3s.1"},
}, {
name: "smaller version",
actualVersion: &testVersioner{version: "v1.14.3"},
wantError: true,
}, {
name: "error while fetching",
actualVersion: &testVersioner{err: errors.New("random error")},
wantError: true,
}, {
name: "smaller version with overridden version",
versionOverride: "v1.13.0",
actualVersion: &testVersioner{version: "v1.13.3"},
}, {
name: "unparseable actual version",
actualVersion: &testVersioner{version: "v1.13.foo"},
wantError: true,
}, {
name: "unparseable override version",
versionOverride: "v1.13.foo",
actualVersion: &testVersioner{version: "v1.13.3"},
wantError: true,
}}
for _, test := range tests {
t.Run(test.name, func(t *testing.T) {
os.Setenv(KubernetesMinVersionKey, test.versionOverride)
defer os.Setenv(KubernetesMinVersionKey, "")
err := CheckMinimumVersion(test.actualVersion)
if err == nil && test.wantError {
t.Errorf("Expected an error for minimum: %q, actual: %v", getMinimumVersion(), test.actualVersion)
}
if err != nil && !test.wantError {
t.Errorf("Expected no error but got %v for minimum: %q, actual: %v", err, getMinimumVersion(), test.actualVersion)
}
})
}
}