VarargsParseSignatureTest.java

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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * accompanied this code).
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package com.oracle.truffle.nfi.test.parser;

import com.oracle.truffle.nfi.types.NativeSignature;
import com.oracle.truffle.nfi.types.Parser;
import org.junit.Assert;
import org.junit.Test;

public class VarargsParseSignatureTest {

    private static void testVarargs(String signatureString, int expectedArgCount, int expectedFixedArgCount) {
        NativeSignature signature = Parser.parseSignature(signatureString);
        Assert.assertEquals("argument count", expectedArgCount, signature.getArgTypes().size());
        Assert.assertEquals("fixed argument count", expectedFixedArgCount, signature.getFixedArgCount());
        if (expectedArgCount == expectedFixedArgCount) {
            Assert.assertFalse(signature.isVarargs());
        } else {
            Assert.assertTrue(signature.isVarargs());
        }
    }

    @Test
    public void testFixedArgs() {
        testVarargs("(float, double) : void", 2, 2);
    }

    @Test
    public void testNoFixedArgs() {
        testVarargs("(...float, double) : void", 2, 0);
    }

    @Test
    public void testTwoFixedArgs() {
        testVarargs("(object, pointer, ...float, double) : void", 4, 2);
    }

    @Test
    public void testOneVararg() {
        testVarargs("(string, ...sint32) : void", 2, 1);
    }

    @Test
    public void testTwoVarargs() {
        testVarargs("(string, ...object, uint32) : void", 3, 1);
    }
}