0.0.50, fix Production test

Author: DmitrySoshnikov

.gitignore

@@ -1,3 +1,4 @@
 /dist
 node_modules/
-.npm-debug.log
+.npm-debug.log
+npm-debug.log

package.json

@@ -1,6 +1,6 @@
 {
   "name": "syntax-cli",
-  "version": "0.0.49",
+  "version": "0.0.50",
   "description": "Syntactic analysis toolkit, language agnostic parsers generator.",
   "repository": {
     "type": "git",

src/grammar/__tests__/production-test.js

@@ -15,6 +15,10 @@ const mockGrammar = {
       '+': {assoc: "left", precedence: 1},
     };
   },
+
+  usesDefaultSematicActions() {
+    return false;
+  },
 };
 
 const productionData = {
@@ -100,6 +104,23 @@ describe('production', () => {
     expect(production.runSemanticAction(args)).toBe(undefined);
   });
 
+  it('default action', () => {
+    let production = new Production({
+      ...productionData,
+      RHS: `'foo'`,
+      semanticAction: null,
+      grammar: {
+        ...mockGrammar,
+        usesDefaultSematicActions() {
+          return true;
+        },
+      }
+    });
+
+    const defaultAction = '$$ = $1';
+    expect(production.getRawSemanticAction()).toBe(defaultAction);
+  });
+
   it('epsilon', () => {
     let production = new Production({...productionData, RHS: EPSILON});
     expect(production.isEpsilon()).toBe(true);