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patches_test.go
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patches_test.go
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// Copyright (c) 2015 SUSE LLC. All rights reserved.
//
// 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 main
import (
"bytes"
"flag"
"log"
"strings"
"testing"
"github.com/codegangsta/cli"
"github.com/mssola/capture"
)
func testPatchContext(source, destination string) *cli.Context {
set := flag.NewFlagSet("test", 0)
c := cli.NewContext(nil, set, nil)
args := []string{}
if source != "" {
args = append(args, source)
}
if destination != "" {
args = append(args, destination)
}
if err := set.Parse(args); err != nil {
log.Fatalf("Cannot parse args: %s", err)
}
return c
}
func testCommand() string {
cmd := dockerClient.(*mockClient).lastCmd
if len(cmd) != 1 {
return ""
}
// The command is basically: "zypper ref && actual command".
return strings.TrimSpace(strings.Split(cmd[0], "&&")[1])
}
func TestListPatchesNoImageSpecified(t *testing.T) {
setupTestExitStatus()
dockerClient = &mockClient{}
buffer := bytes.NewBuffer([]byte{})
log.SetOutput(buffer)
capture.All(func() { listPatchesCmd(testContext([]string{}, false)) })
if testCommand() != "" {
t.Fatalf("The command should not have been executed")
}
if exitInvocations != 1 {
t.Fatalf("Expected to have exited with error")
}
if !strings.Contains(buffer.String(), "Error: no image name specified") {
t.Fatal("It should've logged something\n")
}
}
func TestListPatchesCommandFailure(t *testing.T) {
setupTestExitStatus()
dockerClient = &mockClient{commandFail: true}
buffer := bytes.NewBuffer([]byte{})
log.SetOutput(buffer)
capture.All(func() {
listPatchesCmd(testContext([]string{"opensuse:13.2"}, false))
})
if testCommand() != "zypper lp" {
t.Fatalf("Wrong command!")
}
if !strings.Contains(buffer.String(), "Error: Command exited with status 1") {
t.Fatal("It should've logged something\n")
}
if exitInvocations != 1 {
t.Fatalf("Expected to have exited with error")
}
}
func TestPatchCommandWrongInvocation(t *testing.T) {
setupTestExitStatus()
dockerClient = &mockClient{}
buffer := bytes.NewBuffer([]byte{})
log.SetOutput(buffer)
capture.All(func() { patchCmd(testPatchContext("", "")) })
if exitInvocations != 1 {
t.Fatalf("Expected to have exited with error")
}
if !strings.Contains(buffer.String(), "Wrong invocation") {
t.Fatal("It should've logged something\n")
}
}
func TestPatchCommandImageOverwriteDetected(t *testing.T) {
setupTestExitStatus()
dockerClient = &mockClient{listFail: true}
capture.All(func() { patchCmd(testPatchContext("ori", "new:1.0.0")) })
if exitInvocations != 1 {
t.Fatalf("Expected to have exited with error")
}
}
func TestPatchCommandRunAndCommitFailure(t *testing.T) {
setupTestExitStatus()
dockerClient = &mockClient{startFail: true}
capture.All(func() { patchCmd(testPatchContext("ori", "new:1.0.0")) })
if exitInvocations != 1 {
t.Fatalf("Expected to have exited with error")
}
}
func TestPatchCommandInvalidTargetName(t *testing.T) {
setupTestExitStatus()
dockerClient = &mockClient{}
capture.All(func() { patchCmd(testPatchContext("ori", "WRONG")) })
if exitInvocations != 1 {
t.Fatalf("Expected to have exited with error")
}
}
func TestPatchCommandCommitSuccess(t *testing.T) {
setupTestExitStatus()
dockerClient = &mockClient{listReturnOneImage: true}
buffer := bytes.NewBuffer([]byte{})
log.SetOutput(buffer)
capture.All(func() { patchCmd(testPatchContext("opensuse:13.2", "new:1.0.0")) })
if exitInvocations != 0 {
t.Fatal(buffer.String())
}
if !strings.Contains(buffer.String(), "new:1.0.0 successfully created") {
t.Fatal("It should've logged something\n")
}
}
func TestPatchCommandCannotUpdateCache(t *testing.T) {
setupTestExitStatus()
dockerClient = &mockClient{}
buffer := bytes.NewBuffer([]byte{})
log.SetOutput(buffer)
capture.All(func() { patchCmd(testPatchContext("ori", "new:1.0.0")) })
if exitInvocations != 1 {
t.Fatalf("Expected to have exited with error")
}
if !strings.Contains(buffer.String(), "new:1.0.0 successfully created") {
t.Fatal("The new image should have been successfully created\n")
}
if !strings.Contains(buffer.String(), "This will break the") {
t.Fatal("We should warn users zypper-docker ps is not going to work\n")
}
}
func TestListPatchesContainerCheckContainerFailure(t *testing.T) {
setupTestExitStatus()
dockerClient = &mockClient{listFail: true}
buffer := bytes.NewBuffer([]byte{})
log.SetOutput(buffer)
capture.All(func() {
listPatchesContainerCmd(testContext([]string{"opensuse:13.2"}, false))
})
if exitInvocations != 1 {
t.Fatalf("Expected to have exited with error")
}
}
func TestListPatchesContainerCheckContainerSuccess(t *testing.T) {
setupTestExitStatus()
dockerClient = &mockClient{}
buffer := bytes.NewBuffer([]byte{})
log.SetOutput(buffer)
capture.All(func() {
listPatchesContainerCmd(testContext([]string{"suse"}, false))
})
if exitInvocations != 0 {
t.Fatalf("Should not have exited with error")
}
}