1 files changed, 65 insertions, 0 deletions
diff --git a/src/test/java/com/jogamp/gluegen/jcpp/ErrorTest.java b/src/test/java/com/jogamp/gluegen/jcpp/ErrorTest.java
new file mode 100644
index 0000000..12a5160
--- /dev/null
+++ b/src/test/java/com/jogamp/gluegen/jcpp/ErrorTest.java
@@ -0,0 +1,65 @@
+package com.jogamp.gluegen.jcpp;
+
+import java.io.IOException;
+import org.junit.Test;
+import static com.jogamp.gluegen.jcpp.Token.*;
+import static org.junit.Assert.*;
+
+public class ErrorTest {
+
+    private boolean testError(Preprocessor p)
+            throws LexerException,
+            IOException {
+        for (;;) {
+            Token tok = p.token();
+            if (tok.getType() == EOF)
+                break;
+            if (tok.getType() == INVALID)
+                return true;
+        }
+        return false;
+    }
+
+    private void testError(String input) throws Exception {
+        StringLexerSource sl;
+        DefaultPreprocessorListener pl;
+        Preprocessor p;
+
+        /* Without a PreprocessorListener, throws an exception. */
+        sl = new StringLexerSource(input, true);
+        p = new Preprocessor();
+        p.addFeature(Feature.CSYNTAX);
+        p.addInput(sl);
+        try {
+            assertTrue(testError(p));
+            fail("Lexing unexpectedly succeeded without listener.");
+        } catch (LexerException e) {
+            /* required */
+        }
+
+        /* With a PreprocessorListener, records the error. */
+        sl = new StringLexerSource(input, true);
+        p = new Preprocessor();
+        p.addFeature(Feature.CSYNTAX);
+        p.addInput(sl);
+        pl = new DefaultPreprocessorListener();
+        p.setListener(pl);
+        assertNotNull("CPP has listener", p.getListener());
+        assertTrue(testError(p));
+        assertTrue("Listener has errors", pl.getErrors() > 0);
+
+        /* Without CSYNTAX, works happily. */
+        sl = new StringLexerSource(input, true);
+        p = new Preprocessor();
+        p.addInput(sl);
+        assertTrue(testError(p));
+    }
+
+    @Test
+    public void testErrors() throws Exception {
+        testError("\"");
+        testError("'");
+        // testError("''");
+    }
+
+}