51 lines
1.2 KiB
Java
51 lines
1.2 KiB
Java
package function.builtin;
|
|
|
|
import static testutil.TestUtilities.*;
|
|
|
|
import org.junit.Test;
|
|
|
|
import function.ArgumentValidator.*;
|
|
import sexpression.LispNumber;
|
|
|
|
public class MINUSTester {
|
|
|
|
@Test
|
|
public void testMinusWithOneNumber() {
|
|
String input = "(- 27)";
|
|
|
|
assertSExpressionsMatch(evaluateString(input), new LispNumber("-27"));
|
|
}
|
|
|
|
@Test
|
|
public void testMinusWithTwoNumbers() {
|
|
String input = "(- 5 3)";
|
|
|
|
assertSExpressionsMatch(evaluateString(input), new LispNumber("2"));
|
|
}
|
|
|
|
@Test
|
|
public void testMinusWithManyNumbers_PositiveResult() {
|
|
String input = "(- 200 100 10 5)";
|
|
|
|
assertSExpressionsMatch(evaluateString(input), new LispNumber("85"));
|
|
}
|
|
|
|
@Test
|
|
public void testMinusWithManyNumbers_NegativeResult() {
|
|
String input = "(- 100 200 20 5)";
|
|
|
|
assertSExpressionsMatch(evaluateString(input), new LispNumber("-125"));
|
|
}
|
|
|
|
@Test(expected = BadArgumentTypeException.class)
|
|
public void testMinusWithNonNumber() {
|
|
evaluateString("(- 'a 'b)");
|
|
}
|
|
|
|
@Test(expected = TooFewArgumentsException.class)
|
|
public void testMinusWithTooFewArguments() {
|
|
evaluateString("(-)");
|
|
}
|
|
|
|
}
|