package editor

import (
	"testing"
)

type isRune struct {
	arg1 rune
	expected bool
}

// (╯°□°）╯︵ ┻━┻
var isAsciiTest = []isRune {
	{'┻', false},
	{'$', true},
	{'︵', false},
	{0x7f, true},
}

func TestIsAscii(t *testing.T) {
	for _, test := range isAsciiTest {
		if output := isAscii(test.arg1); output != test.expected {
			t.Errorf("Output %v not equal to expected %v for input %q", output, test.expected, test.arg1)
		}
	}
}

var isCtrlTest = []isRune {
	{0x78, false},
	{0x7f, true},
	{0x02, true},
	{0x98, false},
	{'a', false},
}

func TestIsCtrl(t *testing.T) {
	for _, test := range isCtrlTest {
		if output := isCtrl(test.arg1); output != test.expected {
			t.Errorf("Output %v not equal to expected %v for input %q", output, test.expected, test.arg1)
		}
	}
}

type ctrlTest struct {
	arg1, expected rune
}

var ctrlTests = []ctrlTest {
	{'A', '\x01'},
	{'B', '\x02'},
	{'Z', '\x1a'},
	{'#', 3},
	{'┻', 0},
	{'😿', 0},
}

func TestCtrl(t *testing.T) {
	for _, test := range ctrlTests {
		if output := ctrl(test.arg1); output != test.expected {
			t.Errorf("Output %v not equal to expected %v for input %q", output, test.expected, test.arg1)
		}
	}
}

func TestTruncateString(t *testing.T) {
	firstString := "abcdefghijklmnopqrstuvwxyz"
	truncated := truncateString(firstString, 13)

	got := len(truncated)
	want := 13

	if got != want {
		t.Errorf("Truncated length: %q, expected length: %q", got, want)
	}
}

func TestTruncateStringNegative(t *testing.T) {
	got := truncateString("fdlkjf", -5)
	want := ""

	if got != want {
		t.Errorf("Truncated value: %q, expected value: %q", got, want)
	}
}

func TestTruncateShorterString(t *testing.T) {
	str := "abcdefg"

	got := truncateString(str, 13)
	want := str

	if got != want {
		t.Errorf("Truncated value: %q, expected value: %q", got, want)
	}
}