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path: root/pkg/commands/git_commands/branch_test.go
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package git_commands

import (
	"testing"

	"github.com/go-errors/errors"
	"github.com/jesseduffield/lazygit/pkg/commands/oscommands"
	"github.com/jesseduffield/lazygit/pkg/config"
	"github.com/stretchr/testify/assert"
)

func TestBranchGetCommitDifferences(t *testing.T) {
	type scenario struct {
		testName          string
		runner            *oscommands.FakeCmdObjRunner
		expectedPushables string
		expectedPullables string
	}

	scenarios := []scenario{
		{
			"Can't retrieve pushable count",
			oscommands.NewFakeRunner(t).
				Expect("git rev-list @{u}..HEAD --count", "", errors.New("error")),
			"?", "?",
		},
		{
			"Can't retrieve pullable count",
			oscommands.NewFakeRunner(t).
				Expect("git rev-list @{u}..HEAD --count", "1\n", nil).
				Expect("git rev-list HEAD..@{u} --count", "", errors.New("error")),
			"?", "?",
		},
		{
			"Retrieve pullable and pushable count",
			oscommands.NewFakeRunner(t).
				Expect("git rev-list @{u}..HEAD --count", "1\n", nil).
				Expect("git rev-list HEAD..@{u} --count", "2\n", nil),
			"1", "2",
		},
	}

	for _, s := range scenarios {
		s := s
		t.Run(s.testName, func(t *testing.T) {
			instance := buildBranchCommands(commonDeps{runner: s.runner})
			pushables, pullables := instance.GetCommitDifferences("HEAD", "@{u}")
			assert.EqualValues(t, s.expectedPushables, pushables)
			assert.EqualValues(t, s.expectedPullables, pullables)
			s.runner.CheckForMissingCalls()
		})
	}
}

func TestBranchNewBranch(t *testing.T) {
	runner := oscommands.NewFakeRunner(t).
		Expect(`git checkout -b "test" "refs/heads/master"`, "", nil)
	instance := buildBranchCommands(commonDeps{runner: runner})

	assert.NoError(t, instance.New("test", "refs/heads/master"))
	runner.CheckForMissingCalls()
}

func TestBranchDeleteBranch(t *testing.T) {
	type scenario struct {
		testName string
		force    bool
		runner   *oscommands.FakeCmdObjRunner
		test     func(error)
	}

	scenarios := []scenario{
		{
			"Delete a branch",
			false,
			oscommands.NewFakeRunner(t).Expect(`git branch -d "test"`, "", nil),
			func(err error) {
				assert.NoError(t, err)
			},
		},
		{
			"Force delete a branch",
			true,
			oscommands.NewFakeRunner(t).Expect(`git branch -D "test"`, "", nil),
			func(err error) {
				assert.NoError(t, err)
			},
		},
	}

	for _, s := range scenarios {
		s := s
		t.Run(s.testName, func(t *testing.T) {
			instance := buildBranchCommands(commonDeps{runner: s.runner})

			s.test(instance.Delete("test", s.force))
			s.runner.CheckForMissingCalls()
		})
	}
}

func TestBranchMerge(t *testing.T) {
	scenarios := []struct {
		testName   string
		userConfig *config.UserConfig
		opts       MergeOpts
		branchName string
		expected   string
	}{
		{
			testName:   "basic",
			userConfig: &config.UserConfig{},
			opts:       MergeOpts{},
			branchName: "mybranch",
			expected:   `git merge --no-edit "mybranch"`,
		},
		{
			testName: "merging args",
			userConfig: &config.UserConfig{
				Git: config.GitConfig{
					Merging: config.MergingConfig{
						Args: "--merging-args", // it's up to the user what they put here
					},
				},
			},
			opts:       MergeOpts{},
			branchName: "mybranch",
			expected:   `git merge --no-edit --merging-args "mybranch"`,
		},
		{
			testName:   "fast forward only",
			userConfig: &config.UserConfig{},
			opts:       MergeOpts{FastForwardOnly: true},
			branchName: "mybranch",
			expected:   `git merge --no-edit --ff-only "mybranch"`,
		},
	}

	for _, s := range scenarios {
		s := s
		t.Run(s.testName, func(t *testing.T) {
			runner := oscommands.NewFakeRunner(t).
				Expect(s.expected, "", nil)
			instance := buildBranchCommands(commonDeps{runner: runner, userConfig: s.userConfig})

			assert.NoError(t, instance.Merge(s.branchName, s.opts))
			runner.CheckForMissingCalls()
		})
	}
}

func TestBranchCheckout(t *testing.T) {
	type scenario struct {
		testName string
		runner   *oscommands.FakeCmdObjRunner
		test     func(error)
		force    bool
	}

	scenarios := []scenario{
		{
			"Checkout",
			oscommands.NewFakeRunner(t).Expect(`git checkout "test"`, "", nil),
			func(err error) {
				assert.NoError(t, err)
			},
			false,
		},
		{
			"Checkout forced",
			oscommands.NewFakeRunner(t).Expect(`git checkout --force "test"`, "", nil),
			func(err error) {
				assert.NoError(t, err)
			},
			true,
		},
	}

	for _, s := range scenarios {
		s := s
		t.Run(s.testName, func(t *testing.T) {
			instance := buildBranchCommands(commonDeps{runner: s.runner})
			s.test(instance.Checkout("test", CheckoutOptions{Force: s.force}))
			s.runner.CheckForMissingCalls()
		})
	}
}

func TestBranchGetBranchGraph(t *testing.T) {
	runner := oscommands.NewFakeRunner(t).ExpectGitArgs([]string{
		"log", "--graph", "--color=always", "--abbrev-commit", "--decorate", "--date=relative", "--pretty=medium", "test", "--",
	}, "", nil)
	instance := buildBranchCommands(commonDeps{runner: runner})
	_, err := instance.GetGraph("test")
	assert.NoError(t, err)
}

func TestBranchGetAllBranchGraph(t *testing.T) {
	runner := oscommands.NewFakeRunner(t).ExpectGitArgs([]string{
		"log", "--graph", "--all", "--color=always", "--abbrev-commit", "--decorate", "--date=relative", "--pretty=medium",
	}, "", nil)
	instance := buildBranchCommands(commonDeps{runner: runner})
	err := instance.AllBranchesLogCmdObj().Run()
	assert.NoError(t, err)
}

func TestBranchCurrentBranchInfo(t *testing.T) {
	type scenario struct {
		testName string
		runner   *oscommands.FakeCmdObjRunner
		test     func(BranchInfo, error)
	}

	scenarios := []scenario{
		{
			"says we are on the master branch if we are",
			oscommands.NewFakeRunner(t).Expect(`git symbolic-ref --short HEAD`, "master", nil),
			func(info BranchInfo, err error) {
				assert.NoError(t, err)
				assert.EqualValues(t, "master", info.RefName)
				assert.EqualValues(t, "master", info.DisplayName)
				assert.False(t, info.DetachedHead)
			},
		},
		{
			"falls back to git `git branch --points-at=HEAD` if symbolic-ref fails",
			oscommands.NewFakeRunner(t).
				Expect(`git symbolic-ref --short HEAD`, "", errors.New("error")).
				Expect(`git branch --points-at=HEAD --format="%(HEAD)%00%(objectname)%00%(refname)"`