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package org.anarres.cpp;
import java.io.BufferedReader;
import java.io.StringReader;
import java.util.Collections;
import javax.annotation.Nonnull;
import org.junit.Test;
import static org.junit.Assert.assertEquals;
public class CppReaderTest {
public static String testCppReader(@Nonnull String in, Feature... f)
throws Exception {
System.out.println("Testing " + in);
StringReader r = new StringReader(in);
CppReader p = new CppReader(r);
p.getPreprocessor().setSystemIncludePath(
Collections.singletonList("src/test/resources")
);
p.getPreprocessor().addFeatures(f);
BufferedReader b = new BufferedReader(p);
StringBuilder out = new StringBuilder();
String line;
while ((line = b.readLine()) != null) {
System.out.println(" >> " + line);
out.append(line).append("\n");
}
return out.toString();
}
@Test
public void testCppReader()
throws Exception {
testCppReader("#include <test0.h>\n", Feature.LINEMARKERS);
}
@Test
public void testVarargs()
throws Exception {
// The newlines are irrelevant, We want exactly one "foo"
testCppReader("#include <varargs.c>\n");
}
@Test
public void testPragmaOnce()
throws Exception {
// The newlines are irrelevant, We want exactly one "foo"
String out = testCppReader("#include <once.c>\n", Feature.PRAGMA_ONCE);
assertEquals("foo", out.trim());
}
@Test
public void testPragmaOnceWithMarkers()
throws Exception {
// The newlines are irrelevant, We want exactly one "foo"
testCppReader("#include <once.c>\n", Feature.PRAGMA_ONCE, Feature.LINEMARKERS);
}
}
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