commands/git : add several tests, do some cleanup

pkg/commands/git.go

@@ -230,7 +230,7 @@ func (c *GitCommand) GetCommitsToPush() []string {
 
 // RenameCommit renames the topmost commit with the given name
 func (c *GitCommand) RenameCommit(name string) error {
-	return c.OSCommand.RunCommand("git commit --allow-empty --amend -m " + c.OSCommand.Quote(name))
+	return c.OSCommand.RunCommand(fmt.Sprintf("git commit --allow-empty --amend -m %s", c.OSCommand.Quote(name)))
 }
 
 // Fetch fetch git repo
@@ -240,23 +240,23 @@ func (c *GitCommand) Fetch() error {
 
 // ResetToCommit reset to commit
 func (c *GitCommand) ResetToCommit(sha string) error {
-	return c.OSCommand.RunCommand("git reset " + sha)
+	return c.OSCommand.RunCommand(fmt.Sprintf("git reset %s", sha))
 }
 
 // NewBranch create new branch
 func (c *GitCommand) NewBranch(name string) error {
-	return c.OSCommand.RunCommand("git checkout -b " + name)
+	return c.OSCommand.RunCommand(fmt.Sprintf("git checkout -b %s", name))
 }
 
 // DeleteBranch delete branch
 func (c *GitCommand) DeleteBranch(branch string, force bool) error {
-	var command string
+	command := "git branch -d"
+
 	if force {
-		command = "git branch -D "
-	} else {
-		command = "git branch -d "
+		command = "git branch -D"
 	}
-	return c.OSCommand.RunCommand(command + branch)
+
+	return c.OSCommand.RunCommand(fmt.Sprintf("%s %s", command, branch))
 }
 
 // ListStash list stash
@@ -266,7 +266,7 @@ func (c *GitCommand) ListStash() (string, error) {
 
 // Merge merge
 func (c *GitCommand) Merge(branchName string) error {
-	return c.OSCommand.RunCommand("git merge --no-edit " + branchName)
+	return c.OSCommand.RunCommand(fmt.Sprintf("git merge --no-edit %s", branchName))
 }
 
 // AbortMerge abort merge

pkg/commands/git_test.go

@@ -633,6 +633,103 @@ func TestGitCommandGetCommitsToPush(t *testing.T) {
 	}
 }
 
+func TestGitCommandRenameCommit(t *testing.T) {
+	gitCmd := newDummyGitCommand()
+	gitCmd.OSCommand.command = func(cmd string, args ...string) *exec.Cmd {
+		assert.EqualValues(t, "git", cmd)
+		assert.EqualValues(t, []string{"commit", "--allow-empty", "--amend", "-m", "test"}, args)
+
+		return exec.Command("echo")
+	}
+
+	assert.NoError(t, gitCmd.RenameCommit("test"))
+}
+
+func TestGitCommandResetToCommit(t *testing.T) {
+	gitCmd := newDummyGitCommand()
+	gitCmd.OSCommand.command = func(cmd string, args ...string) *exec.Cmd {
+		assert.EqualValues(t, "git", cmd)
+		assert.EqualValues(t, []string{"reset", "78976bc"}, args)
+
+		return exec.Command("echo")
+	}
+
+	assert.NoError(t, gitCmd.ResetToCommit("78976bc"))
+}
+
+func TestGitCommandNewBranch(t *testing.T) {
+	gitCmd := newDummyGitCommand()
+	gitCmd.OSCommand.command = func(cmd string, args ...string) *exec.Cmd {
+		assert.EqualValues(t, "git", cmd)
+		assert.EqualValues(t, []string{"checkout", "-b", "test"}, args)
+
+		return exec.Command("echo")
+	}
+
+	assert.NoError(t, gitCmd.NewBranch("test"))
+}
+
+func TestGitCommandDeleteBranch(t *testing.T) {
+	type scenario struct {
+		testName string
+		branch   string
+		force    bool
+		command  func(string, ...string) *exec.Cmd
+		test     func(error)
+	}
+
+	scenarios := []scenario{
+		{
+			"Delete a branch",
+			"test",
+			false,
+			func(cmd string, args ...string) *exec.Cmd {
+				assert.EqualValues(t, "git", cmd)
+				assert.EqualValues(t, []string{"branch", "-d", "test"}, args)
+
+				return exec.Command("echo")
+			},
+			func(err error) {
+				assert.NoError(t, err)
+			},
+		},
+		{
+			"Force delete a branch",
+			"test",
+			true,
+			func(cmd string, args ...string) *exec.Cmd {
+				assert.EqualValues(t, "git", cmd)
+				assert.EqualValues(t, []string{"branch", "-D", "test"}, args)
+
+				return exec.Command("echo")
+			},
+			func(err error) {
+				assert.NoError(t, err)
+			},
+		},
+	}
+
+	for _, s := range scenarios {
+		t.Run(s.testName, func(t *testing.T) {
+			gitCmd := newDummyGitCommand()
+			gitCmd.OSCommand.command = s.command
+			s.test(gitCmd.DeleteBranch(s.branch, s.force))
+		})
+	}
+}
+
+func TestGitCommandMerge(t *testing.T) {
+	gitCmd := newDummyGitCommand()
+	gitCmd.OSCommand.command = func(cmd string, args ...string) *exec.Cmd {
+		assert.EqualValues(t, "git", cmd)
+		assert.EqualValues(t, []string{"merge", "--no-edit", "test"}, args)
+
+		return exec.Command("echo")
+	}
+
+	assert.NoError(t, gitCmd.Merge("test"))
+}
+
 func TestGitCommandDiff(t *testing.T) {
 	gitCommand := newDummyGitCommand()
 	assert.NoError(t, test.GenerateRepo("lots_of_diffs.sh"))