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exec_test.go
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exec_test.go
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/*
Copyright 2015 The Kubernetes 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 exec
import (
"fmt"
"io"
"testing"
"k8s.io/kubernetes/pkg/probe"
)
type FakeCmd struct {
out []byte
stdout []byte
err error
}
func (f *FakeCmd) CombinedOutput() ([]byte, error) {
return f.out, f.err
}
func (f *FakeCmd) Output() ([]byte, error) {
return f.stdout, f.err
}
func (f *FakeCmd) SetDir(dir string) {}
func (f *FakeCmd) SetStdin(in io.Reader) {}
func (f *FakeCmd) SetStdout(out io.Writer) {}
type fakeExitError struct {
exited bool
statusCode int
}
func (f *fakeExitError) String() string {
return f.Error()
}
func (f *fakeExitError) Error() string {
return "fake exit"
}
func (f *fakeExitError) Exited() bool {
return f.exited
}
func (f *fakeExitError) ExitStatus() int {
return f.statusCode
}
func TestExec(t *testing.T) {
prober := New()
tests := []struct {
expectedStatus probe.Result
expectError bool
output string
err error
}{
// Ok
{probe.Success, false, "OK", nil},
// Ok
{probe.Success, false, "OK", &fakeExitError{true, 0}},
// Run returns error
{probe.Unknown, true, "", fmt.Errorf("test error")},
// Unhealthy
{probe.Failure, false, "Fail", &fakeExitError{true, 1}},
}
for i, test := range tests {
fake := FakeCmd{
out: []byte(test.output),
err: test.err,
}
status, output, err := prober.Probe(&fake)
if status != test.expectedStatus {
t.Errorf("[%d] expected %v, got %v", i, test.expectedStatus, status)
}
if err != nil && test.expectError == false {
t.Errorf("[%d] unexpected error: %v", i, err)
}
if err == nil && test.expectError == true {
t.Errorf("[%d] unexpected non-error", i)
}
if test.output != output {
t.Errorf("[%d] expected %s, got %s", i, test.output, output)
}
}
}