@Test
  public void simple() {
    Expression program = new NopExpression();

    Program p = new ExpressionProgramBuilder().buildProgram(program);

    Assert.assertEquals("0: end\n", p.toString());
  }
  @Test
  public void sequence() {
    SeqExpression program =
        new SeqExpression(new VariableExpression("a"), new VariableExpression("b"));

    Program p = new ExpressionProgramBuilder().buildProgram(program);

    Assert.assertEquals("0: read a\n" + "1: read b\n" + "2: end\n", p.toString());
  }
  @Test
  public void whileExpression() {
    Expression program =
        new WhileExpression(
            new VariableExpression("a"), new AssignmentExpression("b", new NopExpression()));

    Program p = new ExpressionProgramBuilder().buildProgram(program);

    Assert.assertEquals(
        "0: read a\n" + "1: ifjump 3\n" + "2: write b\n" + "3: end\n", p.toString());
  }
  @Test
  public void ifExpression() {
    Expression program =
        new IfExpression(
            new NopExpression(),
            new AssignmentExpression("a", new NopExpression()),
            new AssignmentExpression("b", new NopExpression()));

    Program p = new ExpressionProgramBuilder().buildProgram(program);

    Assert.assertEquals(
        "0: ifjump 3\n" + "1: write a\n" + "2: jump 4\n" + "3: write b\n" + "4: end\n",
        p.toString());
  }
Example #5
0
  @Test
  public void programWithTryFinally() {
    Program program =
        new SimpleProgramBuilder()
            .emitTry()
            .emitRead("x")
            .emitFinally()
            .emitRead("x")
            .emitEndTry()
            .buildProgram();

    Assert.assertEquals(
        "0: try\n" + "1: read x\n" + "2: finally\n" + "3: read x\n" + "4: endTry\n" + "5: end\n",
        program.toString());
  }
Example #6
0
  @Test
  public void simpleProgramBuilding() {
    Program program = new SimpleProgramBuilder().emitRead("x").emitWrite("y").buildProgram();

    Assert.assertEquals("0: read x\n" + "1: write y\n" + "2: end\n", program.toString());
  }