Add a test to keep artifact sizes down

packages/contract-artifacts/test/contract_artifacts_test.ts

@@ -0,0 +1,35 @@
+import * as chai from 'chai';
+import * as dirtyChai from 'dirty-chai';
+import { get } from 'lodash';
+import 'mocha';
+
+import * as artifacts from '../src/index';
+
+chai.use(dirtyChai);
+
+const expect = chai.expect;
+
+describe('Contract Artifacts', () => {
+    const forbiddenProperties = [
+        'compilerOutput.evm.bytecode.sourceMap',
+        'compilerOutput.evm.bytecode.opcodes',
+        'sourceCodes',
+        'sources',
+        'compiler',
+    ];
+    it('should not include forbidden attributes', () => {
+        const forbiddenPropertiesByArtifact: { [name: string]: string[] } = {};
+        for (const [artifactName, artifact] of Object.entries(artifacts)) {
+            for (const forbiddenProperty of forbiddenProperties) {
+                const rejectedValue = get(artifact, forbiddenProperty);
+                if (rejectedValue) {
+                    const previousForbidden = forbiddenPropertiesByArtifact[artifactName];
+                    forbiddenPropertiesByArtifact[artifactName] = previousForbidden
+                        ? [...previousForbidden, forbiddenProperty]
+                        : [forbiddenProperty];
+                }
+            }
+        }
+        expect(forbiddenPropertiesByArtifact).to.be.eq({});
+    });
+});