75 lines
2.3 KiB
Java
75 lines
2.3 KiB
Java
package function.builtin;
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import static error.ErrorManager.Severity.ERROR;
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import static org.junit.Assert.assertEquals;
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import static org.junit.Assert.assertNotNull;
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import static org.junit.Assert.assertTrue;
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import static sexpression.Nil.NIL;
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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.SYMBOL_FUNCTION.UndefinedSymbolFunctionException;
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import testutil.SymbolAndFunctionCleaner;
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public class SYMBOL_FUNCTIONTest extends SymbolAndFunctionCleaner {
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@Test
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public void symbolFunction_BuiltInFunction() {
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String input = "(symbol-function '+)";
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assertEquals("#<FUNCTION +>", evaluateString(input).toString());
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}
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@Test
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public void symbolFunction_BuiltInSpecialFunction() {
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String input = "(symbol-function 'if)";
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assertEquals("#<SPECIAL-FUNCTION IF>", evaluateString(input).toString());
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}
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@Test
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public void symbolFunction_UserDefinedFunction() {
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String defineUserFunction = "(defun y (n m) (+ n m))";
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String input = "(symbol-function 'y)";
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evaluateString(defineUserFunction);
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assertEquals("(Y (N M) (+ N M))", evaluateString(input).toString());
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}
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@Test(expected = UndefinedSymbolFunctionException.class)
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public void symbolFunction_NonFunction() {
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String input = "(symbol-function 'a)";
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evaluateString(input);
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}
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@Test(expected = BadArgumentTypeException.class)
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public void symbolFunctionWithBadArgumentType() {
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evaluateString("(symbol-function 2)");
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}
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@Test(expected = TooManyArgumentsException.class)
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public void symbolFunctionWithTooManyArguments() {
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evaluateString("(symbol-function 'a 'b)");
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}
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@Test(expected = TooFewArgumentsException.class)
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public void symbolFunctionWithTooFewArguments() {
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evaluateString("(symbol-function)");
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}
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@Test
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public void undefinedSymbolFunctionException_HasCorrectAttributes() {
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UndefinedSymbolFunctionException e = new UndefinedSymbolFunctionException(NIL);
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assertEquals(ERROR, e.getSeverity());
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assertNotNull(e.getMessage());
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assertTrue(e.getMessage().length() > 0);
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}
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}
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