truffula/src/ColorPrinterTest.java at 86ff59bb22e3ddeb919f26e18b32f5dea1e997c5 · grc-cohort-21/truffula · GitHub

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import org.junit.jupiter.api.Test;

import java.io.ByteArrayOutputStream;
import java.io.PrintStream;

import static org.junit.jupiter.api.Assertions.assertEquals;

class ColorPrinterTest {

  @Test
  void testPrintlnWithRedColorAndReset() {
    // Arrange: Capture the printed output
    ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
    PrintStream printStream = new PrintStream(outputStream);

    ColorPrinter printer = new ColorPrinter(printStream);
    printer.setCurrentColor(ConsoleColor.RED);

    // Act: Print the message
    String message = "I speak for the trees";
    printer.println(message);


    String expectedOutput = ConsoleColor.RED + "I speak for the trees" + System.lineSeparator() + ConsoleColor.RESET;

    // Assert: Verify the printed output
    assertEquals(expectedOutput, outputStream.toString());
  }


  @Test
  void testPrintlnWithGreenColorAndReset() {
    // Arrange: Capture the printed output
    ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
    PrintStream printStream = new PrintStream(outputStream);

    ColorPrinter printer = new ColorPrinter(printStream);
    printer.setCurrentColor(ConsoleColor.GREEN);

    // Act: Print the message
    String message = "I speak for the trees";
    printer.println(message);


    String expectedOutput = ConsoleColor.GREEN + "I speak for the trees" + System.lineSeparator() + ConsoleColor.RESET;

    // Assert: Verify the printed output
    assertEquals(expectedOutput, outputStream.toString());
  }

  @Test
  void testPrintlnDefaultColor() {
    // Arrange: Capture the printed output
    ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
    PrintStream printStream = new PrintStream(outputStream);

    ColorPrinter printer = new ColorPrinter(printStream);

    // Assert: Verify the printed output
    assertEquals(ConsoleColor.WHITE, printer.getCurrentColor());
  }


  @Test
  void testPrintlnNoReset() {
    // Arrange: Capture the printed output
    ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
    PrintStream printStream = new PrintStream(outputStream);

    ColorPrinter printer = new ColorPrinter(printStream);
    printer.setCurrentColor(ConsoleColor.RED);

    // Act: Print the message
    String message = "I speak for the trees";
    printer.println(message, false);


    String expectedOutput = ConsoleColor.RED + "I speak for the trees" + System.lineSeparator();

    // Assert: Verify the printed output
    assertEquals(expectedOutput, outputStream.toString());
  }


}