43 lines
1.2 KiB
Java
43 lines
1.2 KiB
Java
package function.builtin;
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import static function.builtin.GENSYM.GENSYM_PREFIX;
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import static testutil.TestUtilities.*;
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import static testutil.TypeAssertions.assertSymbol;
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import org.junit.Test;
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import function.ArgumentValidator.TooManyArgumentsException;
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import testutil.SymbolAndFunctionCleaner;
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import token.TokenFactory.BadCharacterException;
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public class GENSYMTest extends SymbolAndFunctionCleaner {
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@Test
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public void gensymCreatesSymbol() {
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assertSymbol(evaluateString("(gensym)"));
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}
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@Test
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public void gensymCreatesUniqueSymbol() {
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assertSExpressionsDoNotMatch(evaluateString("(gensym)"), evaluateString("(gensym)"));
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}
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@Test
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public void simpleGensymUsage() {
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String input = "(let ((x (gensym))) (set x 23) (eval x))";
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assertSExpressionsMatch(evaluateString("23"), evaluateString(input));
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}
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@Test(expected = BadCharacterException.class)
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public void cannotUseGensymValueManually() {
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String variableName = GENSYM_PREFIX + 1;
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evaluateString("(setq " + variableName + " 100)");
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}
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@Test(expected = TooManyArgumentsException.class)
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public void gensymWithTooManyArguments() {
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evaluateString("(gensym 1)");
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}
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}
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