got test harness going

[git-p4: depot-paths = "//depot/code/antlr4/main/": change = 6691]

tool/test/org/antlr/v4/test/BaseTest.java

@@ -426,9 +426,13 @@ public abstract class BaseTest {
             ErrorManager.setErrorListener(equeue);
             try {
                 String[] lines = input.split("\n");
-                int lastSpace = lines[0].lastIndexOf(' ');
+                String fileName = "<string>";
-                int semi = lines[0].lastIndexOf(';');
+                int grIndex = lines[0].indexOf("grammar");
-                String fileName = lines[0].substring(lastSpace+1, semi)+".g";
+                if ( grIndex>=0 ) {
+                    int space = lines[0].indexOf(' ', grIndex);
+                    int semi = lines[0].lastIndexOf(';');
+                    fileName = lines[0].substring(space+1, semi)+".g";
+                }
                 Grammar g = new Grammar(fileName, input);
                 g.loadImportedGrammars();
                 SemanticPipeline sem = new SemanticPipeline();

tool/test/org/antlr/v4/test/TestAttributeChecks.java

@@ -0,0 +1,69 @@
+package org.antlr.v4.test;
+
+import org.antlr.runtime.RecognitionException;
+import org.junit.Test;
+import org.stringtemplate.v4.ST;
+
+/** */
+public class TestAttributeChecks extends BaseTest {
+    String attributeTemplate =
+        "parser grammar A;\n"+
+        "@members {<members>}\n" +
+        "a[int x] returns [int y]\n" +
+        "@init {<init>}\n" +
+        "    :   {<action>}\n" +
+        "    ;\n" +
+        "    finally {<finally>}\n" +
+        "b[int d] returns [int e]\n" +
+        "    :   {<action2>}\n" +
+        "    ;\n" +
+        "c   :   ;";
+
+    String scopeTemplate =
+        "parser grammar A;\n"+
+        "@members {\n" +
+        "}\n" +
+        "scope S { int i; }\n" +
+        "a[int x] returns [int y]\n" +
+        "scope { int z; }\n" +
+        "scope S;\n" +
+        "@init {}\n" +
+        "    :   {}\n" +
+        "    ;\n" +
+        "    finally {}\n" +
+        "b[int d] returns [int e]\n" +
+        "scope { int f; }\n" +
+        "    :   {}\n" +
+        "    ;\n" +
+        "c   :   ;";
+
+    String[] membersChecks = {
+        "$a.y", "error(29): A.g:2:12: unknown attribute reference a in $a.y",
+    };
+
+    String[] initChecks = {
+        "$a.y", "error(29): A.g:4:9: unknown attribute reference a in $a.y",
+    };
+
+    @Test public void testMembersActions() throws RecognitionException {
+        for (int i = 0; i < membersChecks.length; i+=2) {
+            String m = membersChecks[i];
+            String expected = membersChecks[i+1];
+            ST st = new ST(attributeTemplate);
+            st.add("members", m);
+            String grammar = st.render();
+            testErrors(new String[] {grammar, expected});
+        }
+    }
+
+    @Test public void testInitActions() throws RecognitionException {
+        for (int i = 0; i < initChecks.length; i+=2) {
+            String init = initChecks[i];
+            String expected = initChecks[i+1];
+            ST st = new ST(attributeTemplate);
+            st.add("init", init);
+            String grammar = st.render();
+            testErrors(new String[] {grammar, expected});
+        }
+    }    
+}