Add extra test from #25.

1 files changed, 43 insertions, 0 deletions

diff --git a/src/test/java/org/anarres/cpp/TokenPastingWhitespaceTest.java b/src/test/java/org/anarres/cpp/TokenPastingWhitespaceTest.java
new file mode 100644
index 0000000..2e6a2b5
--- /dev/null
+++ b/src/test/java/org/anarres/cpp/TokenPastingWhitespaceTest.java
@@ -0,0 +1,43 @@
+package org.anarres.cpp;
+
+import com.google.common.io.CharStreams;
+import java.io.IOException;
+import java.io.Reader;
+import org.junit.Test;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import static org.junit.Assert.*;
+
+/**
+ * https://github.com/shevek/jcpp/issues/25
+ *
+ * @author shevek
+ */
+public class TokenPastingWhitespaceTest {
+
+    private static final Logger LOG = LoggerFactory.getLogger(TokenPastingWhitespaceTest.class);
+
+    @Test
+    public void testWhitespacePasting() throws IOException {
+        Preprocessor pp = new Preprocessor();
+        pp.addInput(new StringLexerSource(
+                "#define ONE(arg) one_##arg\n"
+                + "#define TWO(arg) ONE(two_##arg)\n"
+                + "\n"
+                + "TWO(good)\n"
+                + "TWO(     /* evil newline */\n"
+                + "    bad)\n"
+                + "\n"
+                + "ONE(good)\n"
+                + "ONE(     /* evil newline */\n"
+                + "    bad)\n", true));
+        Reader r = new CppReader(pp);
+        String text = CharStreams.toString(r).trim();
+        LOG.info("Output is:\n" + text);
+        assertEquals("one_two_good\n"
+                + "one_two_bad\n"
+                + "\n"
+                + "one_good\n"
+                + "one_bad", text);
+    }
+}