package editor

import "testing"

func TestNew(t *testing.T) {
	e := New()

	if e == nil {
		t.Errorf("Failed to create editor")
	}
}

type moveCursor struct {
	keys     []string
	withFile bool
	cursor   *point
}

var cursorTests = []moveCursor{
	{[]string{"\x1b"}, false, &point{0, 0}},
	{[]string{keyRight}, true, &point{1, 0}},
	{[]string{keyEnd}, true, &point{14, 0}},
	{[]string{keyEnd, keyHome}, true, &point{0, 0}},
	{[]string{keyRight, keyLeft}, true, &point{0, 0}},
	{[]string{keyDown, keyUp}, true, &point{0, 0}},
	// {[]string{keyPageUp}, true, &point{0, 0}},
}

func TestMoveCursor(t *testing.T) {
	for _, test := range cursorTests {
		e := New()

		if test.withFile {
			e.Open("editor.go")
		}

		for _, key := range test.keys {
			e.moveCursor(key)
		}
		want := test.cursor
		got := e.cursor

		if got.x != want.x || got.y != want.y {
			t.Errorf("Output %v not equal to expected %v for input %q", got, want, test.keys)
		}
	}
}

func TestInsertChar(t *testing.T) {
	e := New()
	e.insertChar('q')

	if e.document.rowCount() != 1 {
		t.Errorf("A row was not created when the character was inserted")
	}

	row := e.document.rows[0]
	if row.size() != 1 {
		t.Errorf("Failed to add character to row. Row: %v", row)
	}
}