12 files changed, 520 insertions, 0 deletions
diff --git a/src/test/java/org/anarres/cpp/CppReaderTest.java b/src/test/java/org/anarres/cpp/CppReaderTest.java
new file mode 100644
index 0000000..27eba06
--- /dev/null
+++ b/src/test/java/org/anarres/cpp/CppReaderTest.java
@@ -0,0 +1,34 @@
+package org.anarres.cpp;
+
+import java.util.Collections;
+
+import java.io.StringReader;
+import java.io.BufferedReader;
+import org.junit.Test;
+
+public class CppReaderTest {
+
+    private void testCppReader(String in, String out)
+            throws Exception {
+        System.out.println("Testing " + in + " => " + out);
+        StringReader r = new StringReader(in);
+        CppReader p = new CppReader(r);
+        p.getPreprocessor().setSystemIncludePath(
+                Collections.singletonList("src/test/resources")
+        );
+        p.getPreprocessor().getFeatures().add(Feature.LINEMARKERS);
+        BufferedReader b = new BufferedReader(p);
+
+        String line;
+        while ((line = b.readLine()) != null) {
+            System.out.println(" >> " + line);
+        }
+    }
+
+    @Test
+    public void testCppReader()
+            throws Exception {
+        testCppReader("#include <test0.h>\n", "ab");
+    }
+
+}
diff --git a/src/test/java/org/anarres/cpp/ErrorTest.java b/src/test/java/org/anarres/cpp/ErrorTest.java
new file mode 100644
index 0000000..8777452
--- /dev/null
+++ b/src/test/java/org/anarres/cpp/ErrorTest.java
@@ -0,0 +1,65 @@
+package org.anarres.cpp;
+
+import java.io.IOException;
+import org.junit.Test;
+import static org.anarres.cpp.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;
+        PreprocessorListener 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 PreprocessorListener();
+        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("''");
+    }
+
+}
diff --git a/src/test/java/org/anarres/cpp/JavaFileSystemTest.java b/src/test/java/org/anarres/cpp/JavaFileSystemTest.java
new file mode 100644
index 0000000..0ca44be
--- /dev/null
+++ b/src/test/java/org/anarres/cpp/JavaFileSystemTest.java
@@ -0,0 +1,38 @@
+package org.anarres.cpp;
+
+import java.io.FileNotFoundException;
+import org.junit.Test;
+import static org.junit.Assert.*;
+
+public class JavaFileSystemTest {
+
+    @Test
+    public void testJavaFileSystem() throws Exception {
+        JavaFileSystem fs = new JavaFileSystem();
+        VirtualFile f;
+
+        /* Anyone who has this file on their Unix box is messed up. */
+        f = fs.getFile("/foo/bar baz");
+        try {
+            f.getSource();	/* drop on floor */
+
+            assertTrue("Got a source for a non-file", f.isFile());
+        } catch (FileNotFoundException e) {
+            assertFalse("Got no source for a file", f.isFile());
+        }
+
+        /* We hope we have this. */
+        f = fs.getFile("/usr/include/stdio.h");
+        try {
+            f.getSource();	/* drop on floor */
+
+            System.out.println("Opened stdio.h");
+            assertTrue("Got a source for a non-file", f.isFile());
+        } catch (FileNotFoundException e) {
+            System.out.println("Failed to open stdio.h");
+            assertFalse("Got no source for a file", f.isFile());
+        }
+
+    }
+
+}
diff --git a/src/test/java/org/anarres/cpp/JoinReaderTest.java b/src/test/java/org/anarres/cpp/JoinReaderTest.java
new file mode 100644
index 0000000..527aa81
--- /dev/null
+++ b/src/test/java/org/anarres/cpp/JoinReaderTest.java
@@ -0,0 +1,41 @@
+package org.anarres.cpp;
+
+import java.io.StringReader;
+import org.junit.Test;
+import static org.junit.Assert.*;
+
+public class JoinReaderTest {
+
+    private void testJoinReader(String in, String out, boolean tg)
+            throws Exception {
+        System.out.println("Testing " + in + " => " + out);
+        StringReader r = new StringReader(in);
+        JoinReader j = new JoinReader(r, tg);
+
+        for (int i = 0; i < out.length(); i++) {
+            int c = j.read();
+            System.out.println("At offset " + i + ": " + (char) c);
+            assertEquals((char) out.charAt(i), c);
+        }
+        assertEquals(-1, j.read());
+        assertEquals(-1, j.read());
+    }
+
+    private void testJoinReader(String in, String out)
+            throws Exception {
+        testJoinReader(in, out, true);
+        testJoinReader(in, out, false);
+    }
+
+    @Test
+    public void testJoinReader()
+            throws Exception {
+        testJoinReader("ab", "ab");
+        testJoinReader("a\\b", "a\\b");
+        testJoinReader("a\nb", "a\nb");
+        testJoinReader("a\\\nb", "ab\n");
+        testJoinReader("foo??(bar", "foo[bar", true);
+        testJoinReader("foo??/\nbar", "foobar\n", true);
+    }
+
+}
diff --git a/src/test/java/org/anarres/cpp/LexerSourceTest.java b/src/test/java/org/anarres/cpp/LexerSourceTest.java
new file mode 100644
index 0000000..76bc673
--- /dev/null
+++ b/src/test/java/org/anarres/cpp/LexerSourceTest.java
@@ -0,0 +1,86 @@
+package org.anarres.cpp;
+
+import java.util.Arrays;
+import org.junit.Test;
+import static org.anarres.cpp.Token.*;
+import static org.junit.Assert.*;
+
+public class LexerSourceTest {
+
+    private void testLexerSource(String in, int... out)
+            throws Exception {
+        System.out.println("Testing '" + in + "' => "
+                + Arrays.toString(out));
+        StringLexerSource s = new StringLexerSource(in);
+
+        int col = 0;
+        for (int i = 0; i < out.length; i++) {
+            Token tok = s.token();
+            System.out.println("Token is " + tok);
+            assertEquals(out[i], tok.getType());
+            // assertEquals(col, tok.getColumn());
+            col += tok.getText().length();
+        }
+
+        Token tok = s.token();
+        System.out.println("Token is " + tok);
+        assertEquals(EOF, tok.getType());
+    }
+
+    @Test
+    public void testLexerSource()
+            throws Exception {
+
+        testLexerSource("int a = 5;",
+                IDENTIFIER, WHITESPACE, IDENTIFIER, WHITESPACE,
+                '=', WHITESPACE, NUMBER, ';', EOF
+        );
+
+        // \n is WHITESPACE because ppvalid = false
+        testLexerSource("# #   \r\n\n\r \rfoo",
+                HASH, WHITESPACE, '#', WHITESPACE, IDENTIFIER
+        );
+
+        testLexerSource("%:%:", PASTE);
+        testLexerSource("%:?", '#', '?');
+        testLexerSource("%:%=", '#', MOD_EQ);
+        testLexerSource("0x1234ffdUL 0765I",
+                NUMBER, WHITESPACE, NUMBER);
+
+        testLexerSource("+= -= *= /= %= <= >= >>= <<= &= |= ^= x",
+                PLUS_EQ, WHITESPACE,
+                SUB_EQ, WHITESPACE,
+                MULT_EQ, WHITESPACE,
+                DIV_EQ, WHITESPACE,
+                MOD_EQ, WHITESPACE,
+                LE, WHITESPACE,
+                GE, WHITESPACE,
+                RSH_EQ, WHITESPACE,
+                LSH_EQ, WHITESPACE,
+                AND_EQ, WHITESPACE,
+                OR_EQ, WHITESPACE,
+                XOR_EQ, WHITESPACE,
+                IDENTIFIER);
+
+        testLexerSource("/**/", CCOMMENT);
+        testLexerSource("/* /**/ */", CCOMMENT, WHITESPACE, '*', '/');
+        testLexerSource("/** ** **/", CCOMMENT);
+        testLexerSource("//* ** **/", CPPCOMMENT);
+        testLexerSource("'\\r' '\\xf' '\\xff' 'x' 'aa' ''",
+                CHARACTER, WHITESPACE,
+                CHARACTER, WHITESPACE,
+                CHARACTER, WHITESPACE,
+                CHARACTER, WHITESPACE,
+                SQSTRING, WHITESPACE,
+                SQSTRING);
+
+        testLexerSource("1i1I1l1L1ui1ul",
+                NUMBER, NUMBER,
+                NUMBER, NUMBER,
+                NUMBER, NUMBER);
+
+        testLexerSource("'' 'x' 'xx'",
+                SQSTRING, WHITESPACE, CHARACTER, WHITESPACE, SQSTRING);
+    }
+
+}
diff --git a/src/test/java/org/anarres/cpp/MainTest.java b/src/test/java/org/anarres/cpp/MainTest.java
new file mode 100644
index 0000000..5ff7350
--- /dev/null
+++ b/src/test/java/org/anarres/cpp/MainTest.java
@@ -0,0 +1,11 @@
+package org.anarres.cpp;
+
+import org.junit.Test;
+
+public class MainTest {
+
+    @Test
+    public void testMain() throws Exception {
+        Main.main(new String[]{"--version"});
+    }
+}
diff --git a/src/test/java/org/anarres/cpp/PreprocessorTest.java b/src/test/java/org/anarres/cpp/PreprocessorTest.java
new file mode 100644
index 0000000..fb2a8ac
--- /dev/null
+++ b/src/test/java/org/anarres/cpp/PreprocessorTest.java
@@ -0,0 +1,167 @@
+package org.anarres.cpp;
+
+import java.io.InputStreamReader;
+import java.io.OutputStreamWriter;
+import java.io.PipedInputStream;
+import java.io.PipedOutputStream;
+import org.junit.Before;
+import org.junit.Test;
+import static org.anarres.cpp.Token.*;
+import static org.junit.Assert.*;
+
+public class PreprocessorTest {
+
+    private OutputStreamWriter writer;
+    private Preprocessor p;
+
+    @Before
+    public void setUp() throws Exception {
+        final PipedOutputStream po = new PipedOutputStream();
+        writer = new OutputStreamWriter(po);
+
+        p = new Preprocessor();
+        p.addInput(
+                new LexerSource(
+                        new InputStreamReader(
+                                new PipedInputStream(po)
+                        ),
+                        true
+                )
+        );
+    }
+
+    private static class I {
+
+        private String t;
+
+        public I(String t) {
+            this.t = t;
+        }
+
+        public String getText() {
+            return t;
+        }
+
+        public String toString() {
+            return getText();
+        }
+    }
+
+    private static I I(String t) {
+        return new I(t);
+    }
+
+    /*
+     * When writing tests in this file, remember the preprocessor
+     * stashes NLs, so you won't see an immediate NL at the end of any
+     * input line. You will see it right before the next nonblank on
+     * the following input line.
+     */
+    @Test
+    public void testPreprocessor() throws Exception {
+        /* Magic macros */
+        testInput("line = __LINE__\n",
+                I("line"), WHITESPACE, '=', WHITESPACE, NUMBER
+        /*, NL - all nls deferred so as not to block the reader */
+        );
+        testInput("file = __FILE__\n", NL, /* from before, etc */
+                I("file"), WHITESPACE, '=', WHITESPACE, STRING
+        );
+
+        /* Simple definitions */
+        testInput("#define A a /* a defined */\n", NL);
+        testInput("#define B b /* b defined */\n", NL);
+        testInput("#define C c /* c defined */\n", NL);
+
+        /* Expansion of arguments */
+        testInput("#define EXPAND(x) x\n", NL);
+        testInput("EXPAND(a)\n", NL, I("a"));
+        testInput("EXPAND(A)\n", NL, I("a"));
+
+        /* Stringification */
+        testInput("#define _STRINGIFY(x) #x\n", NL);
+        testInput("_STRINGIFY(A)\n", NL, "A");
+        testInput("#define STRINGIFY(x) _STRINGIFY(x)\n", NL);
+        testInput("STRINGIFY(b)\n", NL, "b");
+        testInput("STRINGIFY(A)\n", NL, "a");
+
+        /* Concatenation */
+        testInput("#define _CONCAT(x, y) x ## y\n", NL);
+        testInput("_CONCAT(A, B)\n", NL, I("AB"));
+        testInput("#define A_CONCAT done_a_concat\n", NL);
+        testInput("_CONCAT(A, _CONCAT(B, C))\n", NL,
+                I("done_a_concat"), '(', I("b"), ',', WHITESPACE, I("c"), ')'
+        );
+        testInput("#define CONCAT(x, y) _CONCAT(x, y)\n", NL);
+        testInput("CONCAT(A, CONCAT(B, C))\n", NL, I("abc"));
+        testInput("#define _CONCAT3(x, y, z) x ## y ## z\n", NL);
+        testInput("_CONCAT3(a, b, c)\n", NL, I("abc"));
+        testInput("_CONCAT3(A, B, C)\n", NL, I("ABC"));
+
+        /* Redefinitions, undefinitions. */
+        testInput("#define two three\n", NL);
+        testInput("one /* one */\n", NL, I("one"), WHITESPACE, CCOMMENT);
+        testInput("#define one two\n", NL);
+        testInput("one /* three */\n", NL, I("three"), WHITESPACE, CCOMMENT);
+        testInput("#undef two\n", NL);
+        testInput("#define two five\n", NL);
+        testInput("one /* five */\n", NL, I("five"), WHITESPACE, CCOMMENT);
+        testInput("#undef two\n", NL);
+        testInput("one /* two */\n", NL, I("two"), WHITESPACE, CCOMMENT);
+        testInput("#undef one\n", NL);
+        testInput("#define one four\n", NL);
+        testInput("one /* four */\n", NL, I("four"), WHITESPACE, CCOMMENT);
+        testInput("#undef one\n", NL);
+        testInput("#define one one\n", NL);
+        testInput("one /* one */\n", NL, I("one"), WHITESPACE, CCOMMENT);
+
+        /* Variadic macros. */
+        testInput("#define var(x...) a x b\n", NL);
+        testInput("var(e, f, g)\n", NL,
+                I("a"), WHITESPACE,
+                I("e"), ',', WHITESPACE,
+                I("f"), ',', WHITESPACE,
+                I("g"), WHITESPACE,
+                I("b")
+        );
+
+        testInput("#define _Widen(x) L ## x\n", NL);
+        testInput("#define Widen(x) _Widen(x)\n", NL);
+        testInput("#define LStr(x) _Widen(#x)\n", NL);
+        testInput("LStr(x);\n", NL, I("L"), "x");
+
+        writer.close();
+
+        Token t;
+        do {
+            t = p.token();
+            System.out.println("Remaining token " + t);
+        } while (t.getType() != EOF);
+    }
+
+    private void testInput(String in, Object... out)
+            throws Exception {
+        System.out.print("Input: " + in);
+        writer.write(in);
+        writer.flush();
+        for (int i = 0; i < out.length; i++) {
+            Token t = p.token();
+            System.out.println(t);
+            Object v = out[i];
+            if (v instanceof String) {
+                if (t.getType() != STRING)
+                    fail("Expected STRING, but got " + t);
+                assertEquals((String) v, (String) t.getValue());
+            } else if (v instanceof I) {
+                if (t.getType() != IDENTIFIER)
+                    fail("Expected IDENTIFIER " + v + ", but got " + t);
+                assertEquals(((I) v).getText(), (String) t.getText());
+            } else if (v instanceof Character)
+                assertEquals((int) ((Character) v).charValue(), t.getType());
+            else if (v instanceof Integer)
+                assertEquals(((Integer) v).intValue(), t.getType());
+            else
+                fail("Bad object " + v.getClass());
+        }
+    }
+}
diff --git a/src/test/resources/test0.c b/src/test/resources/test0.c
new file mode 100644
index 0000000..7e91637
--- /dev/null
+++ b/src/test/resources/test0.c
@@ -0,0 +1,61 @@
+line = __LINE__
+file = __FILE__
+
+#define A a	/* a defined */
+#define B b	/* b defined */
+#define C c	/* c defined */
+
+#define EXPAND(x) x
+EXPAND(a) -> a
+EXPAND(A) -> a
+
+#define _STRINGIFY(x) #x
+_STRINGIFY(A) -> "A"
+
+#define STRINGIFY(x) _STRINGIFY(x)
+STRINGIFY(b) -> "b"
+STRINGIFY(A) -> "a"
+
+#define _CONCAT(x, y) x ## y
+_CONCAT(A, B) -> AB
+
+#define A_CONCAT done_a_concat
+_CONCAT(A, _CONCAT(B, C)) -> done_a_concat(b, c)
+
+#define CONCAT(x, y) _CONCAT(x, y)
+CONCAT(A, CONCAT(B, C)) -> abc
+
+#define _CONCAT3(x, y, z) x ## y ## z
+_CONCAT3(a, b, c) -> abc
+_CONCAT3(A, B, C) -> ABC
+_CONCAT3(A, EXPAND(B), C) -> AEXPAND(b)C
+
+Line is __LINE__
+File is __FILE__
+
+#define two three
+one /* one */
+#define one two
+one /* three */
+#undef two
+#define two five
+one /* five */
+#undef two
+one /* two */
+#undef one
+#define one four
+one /* four */
+#undef one
+#define one one
+one /* one */
+
+/* warning line 57 column 0 */
+#warning arse
+
+#define foo(x) foo(x, b)
+foo(1) -> _foo(1, b) without the _
+foo(foo(2)) -> _foo(_foo(2, b), b) without the _
+// foo(y, z)
+
+#define var(x...) a x b
+var(e, f, g) -> a e, f, g b
diff --git a/src/test/resources/test0.h b/src/test/resources/test0.h
new file mode 100644
index 0000000..b6697c6
--- /dev/null
+++ b/src/test/resources/test0.h
@@ -0,0 +1,7 @@
+
+test0start_2
+
+#include "test1.h"
+
+test0end___6
+
diff --git a/src/test/resources/test1.c b/src/test/resources/test1.c
new file mode 100644
index 0000000..3e6fbda
--- /dev/null
+++ b/src/test/resources/test1.c
@@ -0,0 +1,2 @@
+#include "./test0.h"
+#include <test1.h>
diff --git a/src/test/resources/test1.h b/src/test/resources/test1.h
new file mode 100644
index 0000000..0b690f7
--- /dev/null
+++ b/src/test/resources/test1.h
@@ -0,0 +1,7 @@
+
+test1start_2
+
+test1mid___4
+
+test1end___6
+
diff --git a/src/test/resources/trigraph.c b/src/test/resources/trigraph.c
new file mode 100644
index 0000000..89615fe
--- /dev/null
+++ b/src/test/resources/trigraph.c
@@ -0,0 +1 @@
+??/