package char

import "testing"

type isA struct {
	arg1     rune
	expected bool
}

func TestIsAscii(t *testing.T) {
	// (╯°□°）╯︵ ┻━┻
	var isAsciiTest = []isA{
		{'┻', false},
		{'$', true},
		{'︵', false},
		{0x7f, true},
	}

	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)
		}
	}
}

func TestIsCtrl(t *testing.T) {
	var isCtrlTest = []isA{
		{0x78, false},
		{0x7f, true},
		{0x02, true},
		{0x98, false},
		{'a', false},
	}

	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)
		}
	}
}

func TestCtrl(t *testing.T) {
	type ctrlTest struct {
		arg1, expected rune
	}

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

	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 TestIsSeparator(t *testing.T) {
	for _, r := range ",.()+-/*=~%<>[] \t" {
		if !IsSeparator(r) {
			t.Errorf("Expected %q to be a syntax separator", r)
		}
	}
}

func TestIsDigit(t *testing.T) {
	var digitTests = []isA{
		{'0', true},
		{'1', true},
		{'.', false},
		{'A', false},
		{'😿', false},
		{'$', false},
	}

	for _, test := range digitTests {
		if output := IsDigit(test.arg1); output != test.expected {
			t.Errorf("Output '%v' not equal to expected '%v' for input %q", output, test.expected, test.arg1)
		}
	}
}

func TestIsNumeric(t *testing.T) {
	var numericTests = []isA{
		{'0', true},
		{'1', true},
		{'.', true},
		{'A', false},
		{'😿', false},
		{'$', false},
	}

	for _, test := range numericTests {
		if output := IsNumeric(test.arg1); output != test.expected {
			t.Errorf("Output '%v' not equal to expected '%v' for input %q", output, test.expected, test.arg1)
		}
	}
}