diff --git a/angular.json b/angular.json
index 845fb2db8..a65a26ee6 100644
--- a/angular.json
+++ b/angular.json
@@ -219,11 +219,6 @@
           "options": {
             "tsConfig": "projects/aca-dev-tools/tsconfig.lib.json",
             "project": "projects/aca-dev-tools/ng-package.json"
-          },
-          "configurations": {
-            "production": {
-              "project": "projects/aca-dev-tools/ng-package.prod.json"
-            }
           }
         },
         "test": {
@@ -259,11 +254,6 @@
           "options": {
             "tsConfig": "projects/adf-extensions/tsconfig.lib.json",
             "project": "projects/adf-extensions/ng-package.json"
-          },
-          "configurations": {
-            "production": {
-              "project": "projects/adf-extensions/ng-package.prod.json"
-            }
           }
         },
         "test": {
@@ -271,7 +261,8 @@
           "options": {
             "main": "projects/adf-extensions/src/test.ts",
             "tsConfig": "projects/adf-extensions/tsconfig.spec.json",
-            "karmaConfig": "projects/adf-extensions/karma.conf.js"
+            "karmaConfig": "projects/adf-extensions/karma.conf.js",
+            "sourceMap": true
           }
         },
         "lint": {
diff --git a/package.json b/package.json
index 8ea7562ed..52bbd2310 100644
--- a/package.json
+++ b/package.json
@@ -4,15 +4,14 @@
   "license": "LGPL-3.0",
   "scripts": {
     "ng": "ng",
-    "start": "npm run server-versions && npm run build.libs.dev && ng serve --open",
-    "start:prod": "npm run server-versions && npm run build.libs.prod && ng serve --prod --open",
-    "build.libs.dev": "ng build adf-extensions && ng build aca-dev-tools && npm run build:my-extension",
-    "build.libs.prod": "ng build adf-extensions --prod && ng build aca-dev-tools --prod && npm run build:my-extension",
-    "build": "npm run server-versions && npm run build.libs.prod && node --max-old-space-size=8192 node_modules/@angular/cli/bin/ng build app --prod",
-    "build:dev": "npm run server-versions && npm run build.libs.dev && ng build",
+    "start": "npm run server-versions && npm run build.libs && ng serve --open",
+    "start:prod": "npm run server-versions && npm run build.libs && ng serve --prod --open",
+    "build.libs": "ng build adf-extensions && ng build aca-dev-tools && npm run build:my-extension",
+    "build": "npm run server-versions && npm run build.libs && node --max-old-space-size=8192 node_modules/@angular/cli/bin/ng build app --prod",
+    "build:dev": "npm run server-versions && npm run build.libs && ng build",
     "build:my-extension": "ng build my-extension && cpr projects/my-extension/assets dist/my-extension/assets --deleteFirst",
-    "test": "npm run build.libs.dev && ng test app --code-coverage",
-    "test:ci": "npm run build.libs.dev && ng test app --code-coverage --watch=false",
+    "test": "npm run build.libs && ng test app --code-coverage",
+    "test:ci": "npm run build.libs && ng test app --code-coverage --watch=false",
     "lint": "ng lint",
     "server-versions": "rimraf ./src/versions.json && npm list --depth=0 --json=true --prod=true > ./src/versions.json  || exit 0",
     "__e2e": "ng e2e",
diff --git a/projects/aca-dev-tools/ng-package.prod.json b/projects/aca-dev-tools/ng-package.prod.json
deleted file mode 100644
index 7a9f7d515..000000000
--- a/projects/aca-dev-tools/ng-package.prod.json
+++ /dev/null
@@ -1,7 +0,0 @@
-{
-  "$schema": "../../node_modules/ng-packagr/ng-package.schema.json",
-  "dest": "../../dist/aca-dev-tools",
-  "lib": {
-    "entryFile": "src/public_api.ts"
-  }
-}
\ No newline at end of file
diff --git a/projects/adf-extensions/karma.conf.js b/projects/adf-extensions/karma.conf.js
index 4c5f8d03f..f43d65fff 100644
--- a/projects/adf-extensions/karma.conf.js
+++ b/projects/adf-extensions/karma.conf.js
@@ -25,7 +25,18 @@ module.exports = function (config) {
     colors: true,
     logLevel: config.LOG_INFO,
     autoWatch: true,
-    browsers: ['Chrome'],
+    browsers: [/*'Chrome',*/ 'ChromeHeadless'],
+    customLaunchers: {
+        ChromeHeadless: {
+            base: 'Chrome',
+            flags: [
+                '--no-sandbox',
+                '--headless',
+                '--disable-gpu',
+                '--remote-debugging-port=9222'
+          ]
+        }
+    },
     singleRun: false
   });
 };
diff --git a/projects/adf-extensions/ng-package.prod.json b/projects/adf-extensions/ng-package.prod.json
deleted file mode 100644
index 48af0c7aa..000000000
--- a/projects/adf-extensions/ng-package.prod.json
+++ /dev/null
@@ -1,8 +0,0 @@
-{
-  "$schema": "../../node_modules/ng-packagr/ng-package.schema.json",
-  "dest": "../../dist/@alfresco/adf-extensions",
-  "lib": {
-    "languageLevel": ["dom", "es2017"],
-    "entryFile": "src/public_api.ts"
-  }
-}
diff --git a/projects/adf-extensions/src/lib/evaluators/core.evaluators.spec.ts b/projects/adf-extensions/src/lib/evaluators/core.evaluators.spec.ts
new file mode 100644
index 000000000..304be9919
--- /dev/null
+++ b/projects/adf-extensions/src/lib/evaluators/core.evaluators.spec.ts
@@ -0,0 +1,237 @@
+/*!
+ * @license
+ * Copyright 2016 - 2018 Alfresco Software, Ltd.
+ *
+ * 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.
+ */
+
+import { every, not, some } from './core.evaluators';
+import { RuleParameter } from '../config/rule.extensions';
+
+describe('Core Evaluators', () => {
+
+    const context: any = {
+        getEvaluator(key: string) {
+            switch (key) {
+                case 'positive':
+                    return () => true;
+                case 'negative':
+                    return () => false;
+                default:
+                    return null;
+            }
+        }
+    };
+
+    describe('not', () => {
+        it('should evaluate a single rule to [true]', () => {
+            const parameter: RuleParameter = {
+                type: 'primitive',
+                value: 'negative'
+            };
+
+            const result = not(context, parameter);
+            expect(result).toBeTruthy();
+        });
+
+        it('should evaluate to [false] when no parameters provided', () => {
+            const result = not(context);
+            expect(result).toBeFalsy();
+        });
+
+        it('should evaluate to [false] when evaluator not available', () => {
+            const parameter: RuleParameter = {
+                type: 'primitive',
+                value: 'missing'
+            };
+
+            const result = not(context, parameter);
+            expect(result).toBeFalsy();
+        });
+
+        it('should evaluate a single rule to [false]', () => {
+            const parameter: RuleParameter = {
+                type: 'primitive',
+                value: 'positive'
+            };
+
+            const result = not(context, parameter);
+            expect(result).toBeFalsy();
+        });
+
+        it('should evaluate multiple rules to [true]', () => {
+            const parameter1: RuleParameter = {
+                type: 'primitive',
+                value: 'negative'
+            };
+
+            const parameter2: RuleParameter = {
+                type: 'primitive',
+                value: 'negative'
+            };
+
+            const parameter3: RuleParameter = {
+                type: 'primitive',
+                value: 'negative'
+            };
+
+            const result = not(context, parameter1, parameter2, parameter3);
+            expect(result).toBeTruthy();
+        });
+
+        it('should evaluate to [false] when one of the rules fails', () => {
+            const parameter1: RuleParameter = {
+                type: 'primitive',
+                value: 'negative'
+            };
+
+            const parameter2: RuleParameter = {
+                type: 'primitive',
+                value: 'negative'
+            };
+
+            const parameter3: RuleParameter = {
+                type: 'primitive',
+                value: 'positive'
+            };
+
+            const result = not(context, parameter1, parameter2, parameter3);
+            expect(result).toBeFalsy();
+        });
+    });
+
+    describe('every', () => {
+        it('should evaluate a single rule to [true]', () => {
+            const parameter: RuleParameter = {
+                type: 'primitive',
+                value: 'positive'
+            };
+
+            const result = every(context, parameter);
+            expect(result).toBeTruthy();
+        });
+
+        it('should evaluate to [false] when no parameters provided', () => {
+            const result = every(context);
+            expect(result).toBeFalsy();
+        });
+
+        it('should evaluate to [false] when evaluator not available', () => {
+            const parameter: RuleParameter = {
+                type: 'primitive',
+                value: 'missing'
+            };
+
+            const result = every(context, parameter);
+            expect(result).toBeFalsy();
+        });
+
+        it('should evaluate a single rule to [false]', () => {
+            const parameter: RuleParameter = {
+                type: 'primitive',
+                value: 'negative'
+            };
+
+            const result = every(context, parameter);
+            expect(result).toBeFalsy();
+        });
+
+        it('should evaluate multiple rules to [true]', () => {
+            const parameter1: RuleParameter = {
+                type: 'primitive',
+                value: 'positive'
+            };
+
+            const parameter2: RuleParameter = {
+                type: 'primitive',
+                value: 'positive'
+            };
+
+            const parameter3: RuleParameter = {
+                type: 'primitive',
+                value: 'positive'
+            };
+
+            const result = every(context, parameter1, parameter2, parameter3);
+            expect(result).toBeTruthy();
+        });
+
+        it('should evaluate to [false] when one of the rules fails', () => {
+            const parameter1: RuleParameter = {
+                type: 'primitive',
+                value: 'positive'
+            };
+
+            const parameter2: RuleParameter = {
+                type: 'primitive',
+                value: 'positive'
+            };
+
+            const parameter3: RuleParameter = {
+                type: 'primitive',
+                value: 'negative'
+            };
+
+            const result = every(context, parameter1, parameter2, parameter3);
+            expect(result).toBeFalsy();
+        });
+    });
+
+    describe('some', () => {
+        it('should evaluate a single rule to [true]', () => {
+            const parameter: RuleParameter = {
+                type: 'primitive',
+                value: 'positive'
+            };
+
+            const result = some(context, parameter);
+            expect(result).toBeTruthy();
+        });
+
+        it('should evaluate to [false] when no parameters provided', () => {
+            const result = some(context);
+            expect(result).toBeFalsy();
+        });
+
+        it('should evaluate to [false] when evaluator not available', () => {
+            const parameter: RuleParameter = {
+                type: 'primitive',
+                value: 'missing'
+            };
+
+            const result = some(context, parameter);
+            expect(result).toBeFalsy();
+        });
+
+        it('should evaluate to [true] if any rule succeeds', () => {
+            const parameter1: RuleParameter = {
+                type: 'primitive',
+                value: 'negative'
+            };
+
+            const parameter2: RuleParameter = {
+                type: 'primitive',
+                value: 'positive'
+            };
+
+            const parameter3: RuleParameter = {
+                type: 'primitive',
+                value: 'negative'
+            };
+
+            const result = some(context, parameter1, parameter2, parameter3);
+            expect(result).toBeTruthy();
+        });
+    });
+
+});
diff --git a/projects/adf-extensions/src/lib/evaluators/core.evaluators.ts b/projects/adf-extensions/src/lib/evaluators/core.evaluators.ts
index b52e71ee1..b6ce7748a 100644
--- a/projects/adf-extensions/src/lib/evaluators/core.evaluators.ts
+++ b/projects/adf-extensions/src/lib/evaluators/core.evaluators.ts
@@ -27,6 +27,7 @@ export function not(context: RuleContext, ...args: RuleParameter[]): boolean {
             const evaluator = context.getEvaluator(arg.value);
             if (!evaluator) {
                 console.warn('evaluator not found: ' + arg.value);
+                return false;
             }
             return !evaluator(context, ...(arg.parameters || []));
         });
@@ -42,6 +43,7 @@ export function every(context: RuleContext, ...args: RuleParameter[]): boolean {
             const evaluator = context.getEvaluator(arg.value);
             if (!evaluator) {
                 console.warn('evaluator not found: ' + arg.value);
+                return false;
             }
             return evaluator(context, ...(arg.parameters || []));
         });
@@ -57,6 +59,7 @@ export function some(context: RuleContext, ...args: RuleParameter[]): boolean {
             const evaluator = context.getEvaluator(arg.value);
             if (!evaluator) {
                 console.warn('evaluator not found: ' + arg.value);
+                return false;
             }
             return evaluator(context, ...(arg.parameters || []));
         });
diff --git a/projects/adf-extensions/src/lib/services/extension.service.spec.ts b/projects/adf-extensions/src/lib/services/extension.service.spec.ts
new file mode 100644
index 000000000..701c68f95
--- /dev/null
+++ b/projects/adf-extensions/src/lib/services/extension.service.spec.ts
@@ -0,0 +1,379 @@
+/*!
+ * @license
+ * Copyright 2016 - 2018 Alfresco Software, Ltd.
+ *
+ * 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.
+ */
+
+import { ExtensionService } from './extension.service';
+import { ExtensionLoaderService } from './extension-loader.service';
+import { ExtensionConfig } from '../config/extension.config';
+import { RuleRef } from '../config/rule.extensions';
+import { RouteRef } from '../config/routing.extensions';
+import { ActionRef } from '../config/action.extensions';
+
+describe('ExtensionService', () => {
+    const blankConfig: ExtensionConfig = {
+        $name: 'test.config',
+        $version: '1.0.0'
+    };
+
+    let loader: ExtensionLoaderService;
+    let service: ExtensionService;
+
+    beforeEach(() => {
+        loader = new ExtensionLoaderService(null);
+        service = new ExtensionService(loader);
+    });
+
+    it('should load and setup a config', async () => {
+        spyOn(loader, 'load').and.callFake(() => {
+            return Promise.resolve(blankConfig);
+        });
+
+        spyOn(service, 'setup').and.stub();
+
+        await service.load();
+
+        expect(loader.load).toHaveBeenCalled();
+        expect(service.setup).toHaveBeenCalledWith(blankConfig);
+    });
+
+    it('should raise warning if setting up with missing config', () => {
+        spyOn(console, 'warn').and.stub();
+
+        service.setup(null);
+
+        expect(console.warn).toHaveBeenCalledWith('Extension configuration not found');
+    });
+
+    it('should setup default evaluators', () => {
+        service.setup(blankConfig);
+
+        const evaluators = ['core.every', 'core.some', 'core.not'];
+        evaluators.forEach(key => {
+            expect(service.getEvaluator(key)).toBeDefined(`Evaluator ${key} is missing`);
+        });
+    });
+
+    it('should set custom evaluators', () => {
+        const evaluator1 = () => true;
+        const evaluator2 = () => false;
+
+        service.setEvaluators({
+            'eval1': evaluator1,
+            'eval2': evaluator2
+        });
+
+        expect(service.getEvaluator('eval1')).toBe(evaluator1);
+        expect(service.getEvaluator('eval2')).toBe(evaluator2);
+    });
+
+    it('should override existing evaluators', () => {
+        const evaluator1 = () => true;
+        const evaluator2 = () => false;
+
+        service.setup(blankConfig);
+        expect(service.getEvaluator('core.every')).toBeDefined();
+        expect(service.getEvaluator('core.every')).not.toBe(evaluator1);
+
+        service.setEvaluators({
+            'core.every': evaluator1,
+            'eval2': evaluator2
+        });
+
+        expect(service.getEvaluator('core.every')).toBe(evaluator1);
+        expect(service.getEvaluator('eval2')).toBe(evaluator2);
+    });
+
+    it('should negate existing evaluator', () => {
+        const positive = () => true;
+
+        service.setEvaluators({
+            'positive': positive
+        });
+
+        let evaluator = service.getEvaluator('positive');
+        expect(evaluator(null)).toBe(true);
+
+        evaluator = service.getEvaluator('!positive');
+        expect(evaluator(null, 'param1', 'param2')).toBe(false);
+    });
+
+    it('should not update evaluators with null value', () => {
+        service.setup(blankConfig);
+        service.setEvaluators(null);
+
+        expect(service.getEvaluator('core.every')).toBeDefined();
+    });
+
+    it('should set authentication guards', () => {
+        let registered = service.getAuthGuards(['guard1']);
+        expect(registered.length).toBe(0);
+
+        const guard1: any = {};
+        const guard2: any = {};
+
+        service.setAuthGuards({
+            'auth1': guard1,
+            'auth2': guard2
+        });
+
+        registered = service.getAuthGuards(['auth1', 'auth2']);
+        expect(registered.length).toBe(2);
+        expect(registered[0]).toBe(guard1);
+        expect(registered[1]).toBe(guard2);
+    });
+
+    it('should overwrite authentication guards', () => {
+        const guard1: any = {};
+        const guard2: any = {};
+
+        service.setAuthGuards({
+            'auth': guard1
+        });
+
+        expect(service.getAuthGuards(['auth'])).toEqual([guard1]);
+
+        service.setAuthGuards({
+            'auth': guard2
+        });
+
+        expect(service.getAuthGuards(['auth'])).toEqual([guard2]);
+    });
+
+    it('should not set authentication guards with null value', () => {
+        const guard1: any = {};
+
+        service.setAuthGuards({
+            'auth': guard1
+        });
+
+        service.setAuthGuards(null);
+
+        expect(service.getAuthGuards(['auth'])).toEqual([guard1]);
+    });
+
+    it('should not fetch auth guards for missing ids', () => {
+        const guards = service.getAuthGuards(null);
+        expect(guards).toEqual([]);
+    });
+
+    it('should set components', () => {
+        const component: any = {};
+
+        service.setComponents({
+            'component1': component
+        });
+
+        expect(service.getComponentById('component1')).toBe(component);
+    });
+
+    it('should overwrite components', () => {
+        const component1: any = {};
+        const component2: any = {};
+
+        service.setComponents({
+            'component': component1
+        });
+
+        expect(service.getComponentById('component')).toBe(component1);
+
+        service.setComponents({
+            'component': component2
+        });
+
+        expect(service.getComponentById('component')).toBe(component2);
+    });
+
+    it('should not set components with null value', () => {
+        const component: any = {};
+
+        service.setComponents({
+            'component1': component
+        });
+
+        expect(service.getComponentById('component1')).toBe(component);
+
+        service.setComponents(null);
+
+        expect(service.getComponentById('component1')).toBe(component);
+    });
+
+    it('should fetch route by id', () => {
+        const route: RouteRef = {
+            id: 'test.route',
+            component: 'component',
+            path: '/ext/route1'
+        };
+
+        spyOn(loader, 'getRoutes').and.returnValue([route]);
+        service.setup(blankConfig);
+
+        expect(service.getRouteById('test.route')).toBe(route);
+    });
+
+    it('should fetch action by id', () => {
+        const action: ActionRef = {
+            id: 'test.action',
+            type: 'action'
+        };
+
+        spyOn(loader, 'getActions').and.returnValue([action]);
+        service.setup(blankConfig);
+
+        expect(service.getActionById('test.action')).toBe(action);
+    });
+
+    it('should fetch rule by id', () => {
+        const rule: RuleRef = {
+            id: 'test.rule',
+            type: 'core.every'
+        };
+
+        spyOn(loader, 'getRules').and.returnValue([rule]);
+        service.setup(blankConfig);
+
+        expect(service.getRuleById('test.rule')).toBe(rule);
+    });
+
+    it('should evaluate condition', () => {
+        const condition = () => true;
+
+        service.setEvaluators({
+            'test.condition': condition
+        });
+
+        const context: any = {
+            getEvaluator(key: string) {
+                return service.getEvaluator(key);
+            }
+        };
+
+        const result = service.evaluateRule('test.condition', context);
+        expect(result).toBe(true);
+    });
+
+    it('should evaluate missing condition as [false]', () => {
+        const context: any = {
+            getEvaluator(key: string) {
+                return service.getEvaluator(key);
+            }
+        };
+
+        const result = service.evaluateRule('missing.condition', context);
+        expect(result).toBe(false);
+    });
+
+    it('should evaluate rule by reference', () => {
+        const ruleRef: RuleRef = {
+            id: 'test.rule',
+            type: 'core.every',
+            parameters: [
+                {
+                    type: 'rule',
+                    value: 'test.condition'
+                }
+            ]
+        };
+
+        spyOn(loader, 'getRules').and.returnValue([ruleRef]);
+        service.setup(blankConfig);
+
+        const condition = () => true;
+
+        service.setEvaluators({
+            'test.condition': condition
+        });
+
+        const context: any = {
+            getEvaluator(key: string) {
+                return service.getEvaluator(key);
+            }
+        };
+
+        const result = service.evaluateRule('test.rule', context);
+        expect(result).toBe(true);
+    });
+
+    it('should evaluate rule ref with missing condition as [false]', () => {
+        const ruleRef: RuleRef = {
+            id: 'test.rule',
+            type: 'missing.evaluator'
+        };
+
+        spyOn(loader, 'getRules').and.returnValue([ruleRef]);
+        service.setup(blankConfig);
+
+        const context: any = {
+            getEvaluator(key: string) {
+                return service.getEvaluator(key);
+            }
+        };
+
+        const result = service.evaluateRule('test.rule', context);
+        expect(result).toBe(false);
+    });
+
+    it('should evaluate rule ref with missing evaluator as [false]', () => {
+        const ruleRef: RuleRef = {
+            id: 'test.rule',
+            type: 'core.every',
+            parameters: [
+                {
+                    type: 'rule',
+                    value: 'missing.condition'
+                }
+            ]
+        };
+
+        spyOn(loader, 'getRules').and.returnValue([ruleRef]);
+        service.setup(blankConfig);
+
+        const context: any = {
+            getEvaluator(key: string) {
+                return service.getEvaluator(key);
+            }
+        };
+
+        const result = service.evaluateRule('test.rule', context);
+        expect(result).toBe(false);
+    });
+
+    describe('expressions', () => {
+        it('should eval static value', () => {
+            const value = service.runExpression('hello world');
+            expect(value).toBe('hello world');
+        });
+
+        it('should eval string as an expression', () => {
+            const value = service.runExpression('$( "hello world" )');
+            expect(value).toBe('hello world');
+        });
+
+        it('should eval expression with no context', () => {
+            const value = service.runExpression('$( 1 + 1 )');
+            expect(value).toBe(2);
+        });
+
+        it('should eval expression with context', () => {
+            const context = {
+                a: 'hey',
+                b: 'there'
+            };
+            const expression = '$( context.a + " " + context.b + "!" )';
+            const value = service.runExpression(expression, context);
+            expect(value).toBe('hey there!');
+        });
+    });
+});
diff --git a/projects/adf-extensions/src/lib/services/extension.service.ts b/projects/adf-extensions/src/lib/services/extension.service.ts
index cf36b5b45..2f78199a3 100644
--- a/projects/adf-extensions/src/lib/services/extension.service.ts
+++ b/projects/adf-extensions/src/lib/services/extension.service.ts
@@ -49,7 +49,7 @@ export class ExtensionService {
 
     setup(config: ExtensionConfig) {
         if (!config) {
-            console.error('Extension configuration not found');
+            console.warn('Extension configuration not found');
             return;
         }