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lazygit/pkg/commands/git_commands/branch_test.go
Stefan Haller 4e0194d8f7 Replace MergeOpts struct with MergeVariant enum
- Squash and FastForwardOnly are mutually exclusive, and instead of asserting
  this at runtime, model the API so that they can't be passed together.
- FastForwardOnly is unused, so remove it; however, we are going to need --ff
  and --no-ff in the next commit, so add those instead.
- Instead of putting the enum into the MergeOpts struct, replace the struct by
  the enum. We can reintroduce the struct when we add more arguments, but for
  now it's an unnecessary indirection.
2025-10-19 21:24:28 +02:00

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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).
ExpectGitArgs([]string{"rev-list", "@{u}..HEAD", "--count"}, "", errors.New("error")),
"?", "?",
},
{
"Can't retrieve pullable count",
oscommands.NewFakeRunner(t).
ExpectGitArgs([]string{"rev-list", "@{u}..HEAD", "--count"}, "1\n", nil).
ExpectGitArgs([]string{"rev-list", "HEAD..@{u}", "--count"}, "", errors.New("error")),
"?", "?",
},
{
"Retrieve pullable and pushable count",
oscommands.NewFakeRunner(t).
ExpectGitArgs([]string{"rev-list", "@{u}..HEAD", "--count"}, "1\n", nil).
ExpectGitArgs([]string{"rev-list", "HEAD..@{u}", "--count"}, "2\n", nil),
"1", "2",
},
}
for _, s := range scenarios {
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).
ExpectGitArgs([]string{"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
branchNames []string
force bool
runner *oscommands.FakeCmdObjRunner
test func(error)
}
scenarios := []scenario{
{
"Delete a branch",
[]string{"test"},
false,
oscommands.NewFakeRunner(t).ExpectGitArgs([]string{"branch", "-d", "test"}, "", nil),
func(err error) {
assert.NoError(t, err)
},
},
{
"Delete multiple branches",
[]string{"test1", "test2", "test3"},
false,
oscommands.NewFakeRunner(t).ExpectGitArgs([]string{"branch", "-d", "test1", "test2", "test3"}, "", nil),
func(err error) {
assert.NoError(t, err)
},
},
{
"Force delete a branch",
[]string{"test"},
true,
oscommands.NewFakeRunner(t).ExpectGitArgs([]string{"branch", "-D", "test"}, "", nil),
func(err error) {
assert.NoError(t, err)
},
},
{
"Force delete multiple branches",
[]string{"test1", "test2", "test3"},
true,
oscommands.NewFakeRunner(t).ExpectGitArgs([]string{"branch", "-D", "test1", "test2", "test3"}, "", nil),
func(err error) {
assert.NoError(t, err)
},
},
}
for _, s := range scenarios {
t.Run(s.testName, func(t *testing.T) {
instance := buildBranchCommands(commonDeps{runner: s.runner})
s.test(instance.LocalDelete(s.branchNames, s.force))
s.runner.CheckForMissingCalls()
})
}
}
func TestBranchMerge(t *testing.T) {
scenarios := []struct {
testName string
userConfig *config.UserConfig
variant MergeVariant
branchName string
expected []string
}{
{
testName: "basic",
userConfig: &config.UserConfig{},
variant: MERGE_VARIANT_REGULAR,
branchName: "mybranch",
expected: []string{"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
},
},
},
variant: MERGE_VARIANT_REGULAR,
branchName: "mybranch",
expected: []string{"merge", "--no-edit", "--merging-args", "mybranch"},
},
{
testName: "multiple merging args",
userConfig: &config.UserConfig{
Git: config.GitConfig{
Merging: config.MergingConfig{
Args: "--arg1 --arg2", // it's up to the user what they put here
},
},
},
variant: MERGE_VARIANT_REGULAR,
branchName: "mybranch",
expected: []string{"merge", "--no-edit", "--arg1", "--arg2", "mybranch"},
},
{
testName: "fast-forward merge",
userConfig: &config.UserConfig{},
variant: MERGE_VARIANT_FAST_FORWARD,
branchName: "mybranch",
expected: []string{"merge", "--no-edit", "--ff", "mybranch"},
},
{
testName: "non-fast-forward merge",
userConfig: &config.UserConfig{},
variant: MERGE_VARIANT_NON_FAST_FORWARD,
branchName: "mybranch",
expected: []string{"merge", "--no-edit", "--no-ff", "mybranch"},
},
{
testName: "squash merge",
userConfig: &config.UserConfig{},
variant: MERGE_VARIANT_SQUASH,
branchName: "mybranch",
expected: []string{"merge", "--no-edit", "--squash", "--ff", "mybranch"},
},
}
for _, s := range scenarios {
t.Run(s.testName, func(t *testing.T) {
runner := oscommands.NewFakeRunner(t).
ExpectGitArgs(s.expected, "", nil)
instance := buildBranchCommands(commonDeps{runner: runner, userConfig: s.userConfig})
assert.NoError(t, instance.Merge(s.branchName, s.variant))
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).ExpectGitArgs([]string{"checkout", "test"}, "", nil),
func(err error) {
assert.NoError(t, err)
},
false,
},
{
"Checkout forced",
oscommands.NewFakeRunner(t).ExpectGitArgs([]string{"checkout", "--force", "test"}, "", nil),
func(err error) {
assert.NoError(t, err)
},
true,
},
}
for _, s := range scenarios {
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).ExpectGitArgs([]string{"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).
ExpectGitArgs([]string{"symbolic-ref", "--short", "HEAD"}, "", errors.New("error")).
ExpectGitArgs([]string{"branch", "--points-at=HEAD", "--format=%(HEAD)%00%(objectname)%00%(refname)"},
"*\x006f71c57a8d4bd6c11399c3f55f42c815527a73a4\x00(HEAD detached at 6f71c57a)\n", nil),
func(info BranchInfo, err error) {
assert.NoError(t, err)
assert.EqualValues(t, "6f71c57a8d4bd6c11399c3f55f42c815527a73a4", info.RefName)
assert.EqualValues(t, "(HEAD detached at 6f71c57a)", info.DisplayName)
assert.True(t, info.DetachedHead)
},
},
{
"handles a detached head (LANG=zh_CN.UTF-8)",
oscommands.NewFakeRunner(t).
ExpectGitArgs([]string{"symbolic-ref", "--short", "HEAD"}, "", errors.New("error")).
ExpectGitArgs(
[]string{"branch", "--points-at=HEAD", "--format=%(HEAD)%00%(objectname)%00%(refname)"},
"*\x00679b0456f3db7c505b398def84e7d023e5b55a8d\x00头指针在 679b0456 分离)\n"+
" \x00679b0456f3db7c505b398def84e7d023e5b55a8d\x00refs/heads/master\n",
nil),
func(info BranchInfo, err error) {
assert.NoError(t, err)
assert.EqualValues(t, "679b0456f3db7c505b398def84e7d023e5b55a8d", info.RefName)
assert.EqualValues(t, "(头指针在 679b0456 分离)", info.DisplayName)
assert.True(t, info.DetachedHead)
},
},
{
"bubbles up error if there is one",
oscommands.NewFakeRunner(t).
ExpectGitArgs([]string{"symbolic-ref", "--short", "HEAD"}, "", errors.New("error")).
ExpectGitArgs([]string{"branch", "--points-at=HEAD", "--format=%(HEAD)%00%(objectname)%00%(refname)"}, "", errors.New("error")),
func(info BranchInfo, err error) {
assert.Error(t, err)
assert.EqualValues(t, "", info.RefName)
assert.EqualValues(t, "", info.DisplayName)
assert.False(t, info.DetachedHead)
},
},
}
for _, s := range scenarios {
t.Run(s.testName, func(t *testing.T) {
instance := buildBranchCommands(commonDeps{runner: s.runner})
s.test(instance.CurrentBranchInfo())
s.runner.CheckForMissingCalls()
})
}
}