506 lines
15 KiB
Java
506 lines
15 KiB
Java
package terminal;
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import static com.googlecode.lanterna.input.KeyType.ArrowDown;
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import static com.googlecode.lanterna.input.KeyType.ArrowLeft;
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import static com.googlecode.lanterna.input.KeyType.ArrowRight;
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import static com.googlecode.lanterna.input.KeyType.ArrowUp;
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import static com.googlecode.lanterna.input.KeyType.Backspace;
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import static com.googlecode.lanterna.input.KeyType.Delete;
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import static com.googlecode.lanterna.input.KeyType.Enter;
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import static com.googlecode.lanterna.input.KeyType.Escape;
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import static terminal.LispTerminal.END_OF_SEGMENT;
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import org.junit.After;
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import org.junit.Before;
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import org.junit.Test;
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public class LispTerminalTest {
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private VirtualTerminalInteractor terminal;
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@Before
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public void setUp() {
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terminal = new VirtualTerminalInteractor();
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terminal.start();
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}
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@After
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public void tearDown() {
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terminal.stop();
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}
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@Test
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public void leftArrowDoesNotMovePastOrigin() {
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terminal.pressKey(ArrowLeft);
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terminal.assertCursorPosition(0, 0);
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}
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@Test
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public void leftArrowWorksAfterEnteringCharacters() {
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terminal.enterCharacters("abc");
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terminal.assertCursorPosition(3, 0);
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terminal.pressKey(ArrowLeft);
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terminal.assertCursorPosition(2, 0);
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terminal.pressKey(ArrowLeft);
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terminal.assertCursorPosition(1, 0);
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terminal.pressKey(ArrowLeft);
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terminal.assertCursorPosition(0, 0);
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terminal.pressKey(ArrowLeft);
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terminal.assertCursorPosition(0, 0);
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}
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@Test
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public void leftArrowWorksAcrossRows() {
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terminal.setColumns(5);
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terminal.enterCharacters("123451");
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terminal.assertCursorPosition(1, 1);
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terminal.pressKeyTimes(ArrowLeft, 2);
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terminal.assertCursorPosition(4, 0);
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}
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@Test
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public void rightArrowDoesNotMovePastEndOfInput() {
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terminal.pressKey(ArrowRight);
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terminal.assertCursorPosition(0, 0);
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}
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@Test
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public void rightArrowWorksAfterMovingLeft() {
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terminal.enterCharacters("12");
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terminal.assertCursorPosition(2, 0);
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terminal.pressKey(ArrowLeft);
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terminal.assertCursorPosition(1, 0);
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terminal.pressKey(ArrowRight);
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terminal.assertCursorPosition(2, 0);
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terminal.pressKey(ArrowRight);
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terminal.assertCursorPosition(2, 0);
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}
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@Test
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public void rightArrowWorksAcrossRow() {
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terminal.setColumns(5);
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terminal.enterCharacters("123451");
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terminal.assertCursorPosition(1, 1);
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terminal.pressKeyTimes(ArrowLeft, 3);
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terminal.assertCursorPosition(3, 0);
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terminal.pressKeyTimes(ArrowRight, 3);
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terminal.assertCursorPosition(1, 1);
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}
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@Test
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public void characterKeyIsEchoed() {
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terminal.enterCharacter('a');
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terminal.assertCursorPosition(1, 0);
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terminal.assertScreenText("a");
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}
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@Test
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public void characterIsInserted() {
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terminal.enterCharacters("abcd");
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terminal.pressKeyTimes(ArrowLeft, 2);
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terminal.enterCharacter('x');
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terminal.assertScreenText("abxcd");
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}
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@Test
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public void characterIsInserted_PushesInputToNextRow() {
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terminal.setColumns(4);
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terminal.enterCharacters("abcd");
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terminal.pressKeyTimes(ArrowLeft, 2);
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terminal.enterCharacter('x');
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terminal.assertScreenText("abxc", "d ");
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}
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@Test
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public void backspaceDoesNothingAtOrigin() {
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terminal.pressKey(Backspace);
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terminal.assertCursorPosition(0, 0);
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}
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@Test
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public void backspaceWorksAfterInput() {
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terminal.enterCharacters("12345");
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terminal.pressKeyTimes(Backspace, 2);
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terminal.assertCursorPosition(3, 0);
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terminal.assertScreenText("123 ");
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}
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@Test
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public void backspaceWorksAcrossRow() {
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terminal.setColumns(4);
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terminal.enterCharacters("1234567");
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terminal.pressKeyTimes(Backspace, 5);
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terminal.assertCursorPosition(2, 0);
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terminal.assertScreenText("12 ", " ");
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}
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@Test
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public void backspaceWorksInMiddleOfInput() {
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terminal.enterCharacters("12345");
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terminal.pressKeyTimes(ArrowLeft, 2);
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terminal.pressKey(Backspace);
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terminal.assertCursorPosition(2, 0);
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terminal.assertScreenText("1245");
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}
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@Test
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public void deleteDoesNothingAtOrigin() {
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terminal.pressKey(Delete);
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terminal.assertCursorPosition(0, 0);
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}
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@Test
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public void deleteDoesNothingAtEndOfInput() {
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terminal.enterCharacters("del");
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terminal.pressKey(Delete);
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terminal.assertCursorPosition(3, 0);
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terminal.assertScreenText("del");
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}
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@Test
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public void deleteWorksAtStartOfInput() {
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terminal.enterCharacters("del");
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terminal.pressKeyTimes(ArrowLeft, 3);
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terminal.pressKeyTimes(Delete, 3);
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terminal.assertCursorPosition(0, 0);
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terminal.assertScreenText(" ");
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}
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@Test
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public void deleteWorksAcrossRow() {
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terminal.setColumns(4);
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terminal.enterCharacters("delete");
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terminal.pressKeyTimes(ArrowLeft, 5);
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terminal.pressKey(Delete);
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terminal.assertCursorPosition(1, 0);
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terminal.assertScreenText("dlet", "e ");
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}
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@Test
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public void enterMovesToNextLine() {
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terminal.pressKey(Enter);
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terminal.assertCursorPosition(0, 1);
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}
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@Test
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public void enterWritesLineToPipedStream() {
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terminal.enterCharacters("enter");
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terminal.pressKey(Enter);
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terminal.assertInputWritten("enter\n");
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}
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@Test
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public void enterPressedInMiddleOfInput_WritesEntireLineToPipedStream() {
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terminal.enterCharacters("enter");
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terminal.pressKeyTimes(ArrowLeft, 2);
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terminal.pressKey(Enter);
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terminal.assertInputWritten("enter\n");
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}
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@Test
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public void enterAfterInsertedText_WritesLineToPipedStream() {
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terminal.enterCharacters("enter");
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terminal.pressKeyTimes(ArrowLeft, 2);
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terminal.enterCharacters("||");
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terminal.pressKey(Enter);
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terminal.assertInputWritten("ent||er\n");
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}
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@Test
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public void enterAfterBackspace_WritesLineToPipedStream() {
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terminal.enterCharacters("enter");
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terminal.pressKeyTimes(Backspace, 2);
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terminal.pressKey(Enter);
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terminal.assertInputWritten("ent\n");
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}
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@Test
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public void enterAfterDelete_WritesLineToPipedStream() {
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terminal.enterCharacters("enter");
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terminal.pressKeyTimes(ArrowLeft, 2);
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terminal.pressKeyTimes(Delete, 2);
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terminal.pressKey(Enter);
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terminal.assertInputWritten("ent\n");
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}
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@Test
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public void controlDWorks() {
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terminal.enterCharacters("control-d");
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terminal.enterControlCharacter('d');
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terminal.assertInputStreamClosed();
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terminal.assertInputWritten("control-d\n");
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}
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@Test
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public void controlCWorks() {
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terminal.enterCharacters("ctrl-c");
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terminal.enterControlCharacter('c');
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terminal.produceOutput("");
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terminal.assertInputStreamClosed();
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terminal.assertInputWritten("");
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terminal.assertScreenText("ctrl-c ", " ");
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}
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@Test
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public void controlDWorksInMiddleOfInput() {
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terminal.enterCharacters("control-d");
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terminal.pressKeyTimes(ArrowLeft, 2);
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terminal.enterControlCharacter('d');
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terminal.assertInputStreamClosed();
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terminal.assertInputWritten("control-d\n");
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}
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@Test
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public void escapeDoesNothing() {
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terminal.pressKey(Escape);
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terminal.assertCursorPosition(0, 0);
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terminal.assertInputWritten("");
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}
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@Test
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public void controlQDoesNothing() {
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terminal.enterControlCharacter('q');
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terminal.assertCursorPosition(0, 0);
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terminal.assertInputWritten("");
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}
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@Test
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public void controlEnterDoesNothing() {
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terminal.pressControlKey(Enter);
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terminal.assertCursorPosition(0, 0);
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terminal.assertInputWritten("");
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}
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@Test
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public void outputIsWritten() {
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terminal.produceOutput("output");
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terminal.assertCursorPosition(6, 0);
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terminal.assertScreenText("output");
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}
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@Test
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public void endOfSegmentCharacterIsNotPrinted() {
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terminal.produceOutput("> " + END_OF_SEGMENT);
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terminal.assertCursorPosition(2, 0);
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terminal.assertScreenText("> ");
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}
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@Test
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public void enterTextPastLastLineOfBuffer() {
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terminal.setColumns(3);
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terminal.setRows(2);
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terminal.enterCharacters("01201201");
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terminal.assertCursorPosition(2, 1);
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terminal.assertScreenText("012", "01 ");
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}
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@Test
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public void insertingTextPushesInputPastEndOfBuffer() {
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terminal.setColumns(3);
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terminal.setRows(4);
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terminal.pressKey(Enter);
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terminal.enterCharacters("00011122");
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terminal.pressKeyTimes(ArrowLeft, 4);
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terminal.assertCursorPosition(1, 2);
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terminal.enterCharacters("zz");
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terminal.assertCursorPosition(0, 2);
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terminal.assertScreenText("000", "1zz", "112", "2 ");
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}
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@Test
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public void insertingTextDoesNothingWhenBufferFilled() {
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terminal.setColumns(3);
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terminal.setRows(3);
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terminal.enterCharacters("00011122");
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terminal.pressKeyTimes(ArrowLeft, 4);
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terminal.assertCursorPosition(1, 1);
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terminal.enterCharacters("zz");
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terminal.assertCursorPosition(1, 1);
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terminal.assertScreenText("000", "111", "22 ");
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}
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@Test
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public void appendingTextDoesNothingWhenBufferFilled() {
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terminal.setColumns(3);
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terminal.setRows(3);
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terminal.enterCharacters("000111222333444");
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terminal.assertCursorPosition(2, 2);
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terminal.assertScreenText("000", "111", "22 ");
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}
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@Test
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public void printedOutputToEndOfRow_MovesCursorToNextRow() {
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terminal.setColumns(3);
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terminal.produceOutput("out");
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terminal.assertCursorPosition(0, 1);
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}
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@Test
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public void printedOutputToEndOfBuffer_MovesCursorToNewRow() {
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terminal.setColumns(3);
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terminal.setRows(2);
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terminal.produceOutput("output");
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terminal.assertCursorPosition(0, 1);
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terminal.assertScreenText("put", " ");
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}
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@Test
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public void outputDoesNotOverwriteInput_AndRedisplaysInput() {
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terminal.setColumns(3);
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terminal.enterCharacters("0123");
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terminal.pressKeyTimes(ArrowLeft, 3);
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terminal.produceOutput("out");
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terminal.assertCursorPosition(2, 3);
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terminal.assertScreenText("012", "3ou", "t01", "23 ", " ");
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}
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@Test
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public void outputEndsOnSecondToLastColumn_MovesToNewRow() {
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terminal.setColumns(3);
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terminal.enterCharacters("01234");
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terminal.pressKeyTimes(ArrowLeft, 3);
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terminal.produceOutput("out");
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terminal.assertCursorPosition(2, 4);
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terminal.assertScreenText("012", "34o", "ut ", "012", "34 ");
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}
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@Test
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public void outputEndsOnLastColumn_MovesToNewRow() {
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terminal.setColumns(3);
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terminal.enterCharacters("012345");
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terminal.pressKeyTimes(ArrowLeft, 3);
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terminal.produceOutput("out");
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terminal.assertCursorPosition(0, 5);
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terminal.assertScreenText("012", "345", "out", "012", "345", " ");
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}
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@Test
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public void outputRedisplaysInputAtEndOfBuffer() {
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terminal.setColumns(3);
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terminal.setRows(4);
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terminal.enterCharacters("01234");
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terminal.pressKeyTimes(ArrowLeft, 3);
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terminal.produceOutput("out");
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terminal.assertCursorPosition(2, 3);
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terminal.assertScreenText("34o", "ut ", "012");
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}
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@Test
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public void outputDoesNotOverwriteInput_AfterEnter() {
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terminal.setColumns(3);
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terminal.enterCharacters("01201201");
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terminal.pressKeyTimes(ArrowLeft, 5);
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terminal.pressKey(Enter);
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terminal.produceOutput("out");
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terminal.assertCursorPosition(0, 4);
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terminal.assertScreenText("012", "012", "01 ", "out", " ");
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}
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@Test
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public void resizeIsHandledGracefully() {
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terminal.enterCharacters("resize");
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terminal.pressKey(Enter);
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terminal.enterCharacters("test");
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terminal.setColumns(3);
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terminal.assertCursorPosition(1, 1);
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terminal.assertScreenText("tes", "t ");
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}
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@Test
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public void backspaceWorksAfterResize() {
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terminal.enterCharacters("resize");
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terminal.pressKey(Enter);
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terminal.enterCharacters("test");
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terminal.setColumns(3);
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terminal.pressKeyTimes(Backspace, 20);
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terminal.assertCursorPosition(0, 0);
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terminal.assertScreenText(" ", " ");
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}
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@Test
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public void deleteWorksAfterResize() {
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terminal.enterCharacters("resize");
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terminal.pressKey(Enter);
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terminal.enterCharacters("test");
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terminal.setColumns(3);
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terminal.pressKeyTimes(ArrowLeft, 20);
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terminal.pressKeyTimes(Delete, 20);
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terminal.pressKeyTimes(ArrowRight, 20);
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terminal.assertCursorPosition(0, 0);
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terminal.assertScreenText(" ", " ");
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}
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@Test
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public void controlSequencesAreNotPrinted() {
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terminal.produceOutput("\u001B[32mcontrol\u001B[0mseq");
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terminal.assertScreenText("controlseq");
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}
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@Test
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public void upArrowWorks() {
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terminal.enterCharacters("(one)");
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terminal.pressKey(Enter);
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terminal.enterCharacters("(two)");
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terminal.pressKey(Enter);
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terminal.pressKey(ArrowUp);
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terminal.assertScreenText("(one)", "(two)", "(two)");
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terminal.assertCursorPosition(5, 2);
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}
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@Test
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public void upArrowErasesCurrentLine() {
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terminal.enterCharacters("(one)");
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terminal.pressKey(Enter);
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terminal.enterCharacters("(two)");
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terminal.pressKey(Enter);
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terminal.enterCharacters("(three)");
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terminal.pressKey(ArrowUp);
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terminal.assertScreenText("(one)", "(two)", "(two) ");
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terminal.assertCursorPosition(5, 2);
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}
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@Test
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public void upArrowStopsAtFirstLine() {
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terminal.enterCharacters("(one)");
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terminal.pressKey(Enter);
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terminal.enterCharacters("(two)");
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terminal.pressKey(Enter);
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terminal.pressKeyTimes(ArrowUp, 5);
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terminal.assertScreenText("(one)", "(two)", "(one)");
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terminal.assertCursorPosition(5, 2);
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}
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@Test
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public void originIsUpdatedWhenPreviousLineMovesPastEndOfBuffer() {
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terminal.setRows(3);
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terminal.setColumns(3);
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terminal.enterCharacters("12345");
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terminal.pressKey(Enter);
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terminal.pressKey(ArrowUp);
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terminal.assertScreenText("45 ", "123", "45 ");
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terminal.pressKeyTimes(ArrowLeft, 10);
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terminal.assertCursorPosition(0, 1);
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}
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@Test
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public void downArrowWorks() {
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terminal.enterCharacters("(one)");
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terminal.pressKey(Enter);
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terminal.enterCharacters("(two)");
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terminal.pressKey(Enter);
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terminal.enterCharacters("(three)");
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terminal.pressKey(ArrowUp);
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terminal.pressKey(ArrowDown);
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terminal.assertScreenText("(one)", "(two)", "(three)");
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terminal.assertCursorPosition(7, 2);
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}
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@Test
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public void downArrowStopsAtLastLine() {
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terminal.pressKeyTimes(ArrowDown, 5);
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terminal.assertScreenText(" ");
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terminal.assertCursorPosition(0, 0);
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}
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}
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