118 lines
3.1 KiB
Java
118 lines
3.1 KiB
Java
package function.builtin.math;
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import static testutil.TestUtilities.assertIsErrorWithMessage;
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import static testutil.TestUtilities.assertSExpressionsMatch;
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import static testutil.TestUtilities.evaluateString;
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import org.junit.Test;
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import function.ArgumentValidator.BadArgumentTypeException;
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import function.ArgumentValidator.TooFewArgumentsException;
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import function.ArgumentValidator.TooManyArgumentsException;
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import function.builtin.math.MODULO.ModulusNotPositiveException;
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import sexpression.LispNumber;
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import testutil.SymbolAndFunctionCleaner;
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public class MODULOTest extends SymbolAndFunctionCleaner {
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@Test
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public void mod() {
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String input = "(mod 5 3)";
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assertSExpressionsMatch(new LispNumber("2"), evaluateString(input));
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}
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@Test
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public void modulo() {
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String input = "(modulo 11 7)";
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assertSExpressionsMatch(new LispNumber("4"), evaluateString(input));
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}
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@Test
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public void moduloSymbol() {
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String input = "(% 8 5)";
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assertSExpressionsMatch(new LispNumber("3"), evaluateString(input));
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}
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@Test
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public void dividendGreaterThanDivisor() {
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String input = "(mod 21 19)";
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assertSExpressionsMatch(new LispNumber("2"), evaluateString(input));
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}
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@Test
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public void dividendLessThanDivisor() {
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String input = "(mod 5 239)";
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assertSExpressionsMatch(new LispNumber("5"), evaluateString(input));
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}
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@Test
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public void dividendEqualToDivisor() {
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String input = "(mod 5 5)";
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assertSExpressionsMatch(new LispNumber("0"), evaluateString(input));
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}
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@Test
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public void dividendMultipleOfDivisor() {
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String input = "(mod 20 5)";
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assertSExpressionsMatch(new LispNumber("0"), evaluateString(input));
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}
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@Test
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public void divisorOfOne() {
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String input = "(mod 5 1)";
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assertSExpressionsMatch(new LispNumber("0"), evaluateString(input));
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}
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@Test
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public void dividendOfZero() {
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String input = "(mod 0 2309)";
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assertSExpressionsMatch(new LispNumber("0"), evaluateString(input));
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}
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@Test
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public void negativeDividend() {
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String input = "(mod -23 25)";
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assertSExpressionsMatch(new LispNumber("2"), evaluateString(input));
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}
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@Test(expected = ModulusNotPositiveException.class)
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public void negativeDivisor() {
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evaluateString("(mod 5 -10)");
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}
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@Test(expected = ModulusNotPositiveException.class)
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public void divisorOfZero() {
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evaluateString("(mod 5 0)");
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}
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@Test(expected = BadArgumentTypeException.class)
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public void modWithNonNumber() {
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evaluateString("(mod 'a 'b)");
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}
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@Test(expected = TooFewArgumentsException.class)
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public void modWithTooFewArguments() {
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evaluateString("(mod 1)");
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}
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@Test(expected = TooManyArgumentsException.class)
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public void modWithTooManyArguments() {
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evaluateString("(mod 1 2 3)");
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}
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@Test
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public void moduloNotPositiveException_HasCorrectAttributes() {
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assertIsErrorWithMessage(new ModulusNotPositiveException());
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}
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}
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