package command

import (
	"testing"
)

func TestDedent(t *testing.T) {
	type c struct {
		input    string
		expected string
	}

	cases := []c{
		{
			input:    "      --help      Show help for command\n      --version   Show gh version\n",
			expected: "--help      Show help for command\n--version   Show gh version\n",
		},
		{
			input:    "      --help              Show help for command\n  -R, --repo OWNER/REPO   Select another repository using the OWNER/REPO format\n",
			expected: "    --help              Show help for command\n-R, --repo OWNER/REPO   Select another repository using the OWNER/REPO format\n",
		},
		{
			input:    "  line 1\n\n  line 2\n line 3",
			expected: " line 1\n\n line 2\nline 3",
		},
		{
			input:    "  line 1\n  line 2\n  line 3\n\n",
			expected: "line 1\nline 2\nline 3\n\n",
		},
		{
			input:    "\n\n\n\n\n\n",
			expected: "\n\n\n\n\n\n",
		},
		{
			input:    "",
			expected: "",
		},
	}

	for _, tt := range cases {
		got := dedent(tt.input)
		if got != tt.expected {
			t.Errorf("expected: %q, got: %q", tt.expected, got)
		}
	}
}

func Test_indent(t *testing.T) {
	type args struct {
		s      string
		indent string
	}
	tests := []struct {
		name string
		args args
		want string
	}{
		{
			name: "empty",
			args: args{
				s:      "",
				indent: "--",
			},
			want: "",
		},
		{
			name: "blank",
			args: args{
				s:      "\n",
				indent: "--",
			},
			want: "\n",
		},
		{
			name: "indent",
			args: args{
				s:      "one\ntwo\nthree",
				indent: "--",
			},
			want: "--one\n--two\n--three",
		},
	}
	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			if got := indent(tt.args.s, tt.args.indent); got != tt.want {
				t.Errorf("indent() = %q, want %q", got, tt.want)
			}
		})
	}
}