test(cicero-core): 100% coverage for CompositeArchiveLoader

packages/cicero-core/package.json

@@ -23,7 +23,7 @@
     "lint": "eslint .",
     "postlint": "npm run licchk",
     "licchk": "license-check-and-add check -f ./license.config.json",
-    "test:mocha": "mocha --timeout 40000",
+    "test:mocha": "mocha --timeout 40000 --recursive",
     "test:watch": "npm run test:mocha -- --watch",
     "test:windows": "npm run test:mocha",
     "test": "npm run test:mocha",

packages/cicero-core/test/loaders/compositearchiveloader.js

@@ -0,0 +1,115 @@
+/*
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+'use strict';
+
+const CompositeArchiveLoader = require('../../src/loaders/compositearchiveloader');
+const chai = require('chai');
+const sinon = require('sinon');
+
+chai.should();
+chai.use(require('chai-as-promised'));
+
+describe('CompositeArchiveLoader', () => {
+
+    let compositeLoader;
+    let mockLoader1;
+    let mockLoader2;
+
+    beforeEach(() => {
+        compositeLoader = new CompositeArchiveLoader();
+        // Create dummy loaders (The "Employees")
+        mockLoader1 = {
+            accepts: sinon.stub(),
+            load: sinon.stub()
+        };
+        mockLoader2 = {
+            accepts: sinon.stub(),
+            load: sinon.stub()
+        };
+    });
+
+    describe('#constructor', () => {
+        it('should start with zero loaders', () => {
+            compositeLoader.getArchiveLoaders().should.have.lengthOf(0);
+        });
+    });
+
+    describe('#addArchiveLoader', () => {
+        it('should add loaders to the list', () => {
+            compositeLoader.addArchiveLoader(mockLoader1);
+            compositeLoader.getArchiveLoaders().should.have.lengthOf(1);
+            compositeLoader.addArchiveLoader(mockLoader2);
+            compositeLoader.getArchiveLoaders().should.have.lengthOf(2);
+        });
+    });
+
+    describe('#clearArchiveLoaders', () => {
+        it('should remove all loaders', () => {
+            compositeLoader.addArchiveLoader(mockLoader1);
+            compositeLoader.clearArchiveLoaders();
+            compositeLoader.getArchiveLoaders().should.have.lengthOf(0);
+        });
+    });
+
+    describe('#accepts', () => {
+        it('should return true if one of the loaders accepts the URL', () => {
+            // Mock: Loader 1 says NO, Loader 2 says YES
+            mockLoader1.accepts.returns(false);
+            mockLoader2.accepts.returns(true);
+            compositeLoader.addArchiveLoader(mockLoader1);
+            compositeLoader.addArchiveLoader(mockLoader2);
+
+            const result = compositeLoader.accepts('http://test.url');
+            result.should.be.true;
+        });
+
+        it('should return false if NONE of the loaders accept the URL', () => {
+            mockLoader1.accepts.returns(false);
+            mockLoader2.accepts.returns(false);
+            compositeLoader.addArchiveLoader(mockLoader1);
+            compositeLoader.addArchiveLoader(mockLoader2);
+
+            const result = compositeLoader.accepts('http://test.url');
+            result.should.be.false;
+        });
+    });
+
+    describe('#load', () => {
+        it('should delegate load to the first accepting loader', async () => {
+            mockLoader1.accepts.returns(false);
+            mockLoader2.accepts.returns(true);
+            mockLoader2.load.resolves('ARCHIVE_DATA'); // Simulate successful load
+
+            compositeLoader.addArchiveLoader(mockLoader1);
+            compositeLoader.addArchiveLoader(mockLoader2);
+
+            const result = await compositeLoader.load('http://test.url', {});
+            result.should.equal('ARCHIVE_DATA');
+            sinon.assert.calledWith(mockLoader2.load, 'http://test.url', {});
+        });
+
+        it('should throw an error if NO loader accepts the URL', () => {
+            mockLoader1.accepts.returns(false);
+            mockLoader2.accepts.returns(false);
+
+            compositeLoader.addArchiveLoader(mockLoader1);
+            compositeLoader.addArchiveLoader(mockLoader2);
+
+            (() => {
+                compositeLoader.load('http://unknown.url', {});
+            }).should.throw(/Failed to find a model file loader/);
+        });
+    });
+});