git_test.go

package git

import (
	"os/exec"
	"reflect"
	"testing"

	"github.com/cli/cli/internal/run"
	"github.com/cli/cli/test"
)

func Test_UncommittedChangeCount(t *testing.T) {
	type c struct {
		Label    string
		Expected int
		Output   string
	}
	cases := []c{
		{Label: "no changes", Expected: 0, Output: ""},
		{Label: "one change", Expected: 1, Output: " M poem.txt"},
		{Label: "untracked file", Expected: 2, Output: " M poem.txt\n?? new.txt"},
	}

	teardown := run.SetPrepareCmd(func(*exec.Cmd) run.Runnable {
		return &test.OutputStub{}
	})
	defer teardown()

	for _, v := range cases {
		_ = run.SetPrepareCmd(func(*exec.Cmd) run.Runnable {
			return &test.OutputStub{Out: []byte(v.Output)}
		})
		ucc, _ := UncommittedChangeCount()

		if ucc != v.Expected {
			t.Errorf("got unexpected ucc value: %d for case %s", ucc, v.Label)
		}
	}
}

func Test_CurrentBranch(t *testing.T) {
	type c struct {
		Stub     string
		Expected string
	}
	cases := []c{
		{
			Stub:     "branch-name\n",
			Expected: "branch-name",
		},
		{
			Stub:     "refs/heads/branch-name\n",
			Expected: "branch-name",
		},
		{
			Stub:     "refs/heads/branch\u00A0with\u00A0non\u00A0breaking\u00A0space\n",
			Expected: "branch\u00A0with\u00A0non\u00A0breaking\u00A0space",
		},
	}

	for _, v := range cases {
		cs, teardown := test.InitCmdStubber()
		cs.Stub(v.Stub)

		result, err := CurrentBranch()
		if err != nil {
			t.Errorf("got unexpected error: %w", err)
		}
		if len(cs.Calls) != 1 {
			t.Errorf("expected 1 git call, saw %d", len(cs.Calls))
		}
		if result != v.Expected {
			t.Errorf("unexpected branch name: %s instead of %s", result, v.Expected)
		}
		teardown()
	}
}

func Test_CurrentBranch_detached_head(t *testing.T) {
	cs, teardown := test.InitCmdStubber()
	defer teardown()

	cs.StubError("")

	_, err := CurrentBranch()
	if err == nil {
		t.Errorf("expected an error")
	}
	if err != ErrNotOnAnyBranch {
		t.Errorf("got unexpected error: %s instead of %s", err, ErrNotOnAnyBranch)
	}
	if len(cs.Calls) != 1 {
		t.Errorf("expected 1 git call, saw %d", len(cs.Calls))
	}
}

func Test_CurrentBranch_unexpected_error(t *testing.T) {
	cs, teardown := test.InitCmdStubber()
	defer teardown()

	cs.StubError("lol")

	expectedError := "lol\nstub: lol"

	_, err := CurrentBranch()
	if err == nil {
		t.Errorf("expected an error")
	}
	if err.Error() != expectedError {
		t.Errorf("got unexpected error: %s instead of %s", err.Error(), expectedError)
	}
	if len(cs.Calls) != 1 {
		t.Errorf("expected 1 git call, saw %d", len(cs.Calls))
	}
}

func TestParseExtraCloneArgs(t *testing.T) {
	type Wanted struct {
		args []string
		dir  string
	}
	tests := []struct {
		name string
		args []string
		want Wanted
	}{
		{
			name: "args and target",
			args: []string{"target_directory", "-o", "upstream", "--depth", "1"},
			want: Wanted{
				args: []string{"-o", "upstream", "--depth", "1"},
				dir:  "target_directory",
			},
		},
		{
			name: "only args",
			args: []string{"-o", "upstream", "--depth", "1"},
			want: Wanted{
				args: []string{"-o", "upstream", "--depth", "1"},
				dir:  "",
			},
		},
		{
			name: "only target",
			args: []string{"target_directory"},
			want: Wanted{
				args: []string{},
				dir:  "target_directory",
			},
		},
		{
			name: "no args",
			args: []string{},
			want: Wanted{
				args: []string{},
				dir:  "",
			},
		},
	}
	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			args, dir := parseCloneArgs(tt.args)
			got := Wanted{
				args: args,
				dir:  dir,
			}

			if !reflect.DeepEqual(got, tt.want) {
				t.Errorf("got %#v want %#v", got, tt.want)
			}
		})
	}

}