transcendental-lisp/test/function/builtin/predicate/NUMERIC_LESSTest.java

59 lines
1.3 KiB
Java

package function.builtin.predicate;
import static testutil.TestUtilities.evaluateString;
import static testutil.TypeAssertions.*;
import org.junit.Test;
import function.ArgumentValidator.*;
import testutil.SymbolAndFunctionCleaner;
public class NUMERIC_LESSTest extends SymbolAndFunctionCleaner {
@Test
public void lessThanWithOneNumber_ReturnsT() {
String input = "(< 1)";
assertT(evaluateString(input));
}
@Test
public void lessThanWithTwoNumbers_ReturnsNil() {
String input = "(< 2 1)";
assertNil(evaluateString(input));
}
@Test
public void lessThanWithTwoNumbers_ReturnsT() {
String input = "(< 2 3)";
assertT(evaluateString(input));
}
@Test
public void lessThanWithManyNumbers_ReturnsNil() {
String input = "(< 4 3 2 5 1)";
assertNil(evaluateString(input));
}
@Test
public void lessThanWithManyNumbers_ReturnsT() {
String input = "(< 0 1 2 3 4)";
assertT(evaluateString(input));
}
@Test(expected = BadArgumentTypeException.class)
public void lessThanWithNonNumbers() {
evaluateString("(< '(1) '(2))");
}
@Test(expected = TooFewArgumentsException.class)
public void lessThanWithTooFewArguments() {
evaluateString("(<)");
}
}