diff --git a/OHIFViewer/bin/testPackages.sh b/OHIFViewer/bin/testPackages.sh
new file mode 100644
index 000000000..681bcd828
--- /dev/null
+++ b/OHIFViewer/bin/testPackages.sh
@@ -0,0 +1,40 @@
+#!/bin/bash
+
+##################################################
+# Runs the packages tests
+##################################################
+
+# check execution arguments
+while [ "$1" != "" ]; do
+    PARAM=`echo $1 | awk -F= '{print $1}'`
+    case $PARAM in
+        -c | --coverage)
+            export RUN_COVERAGE=1
+            ;;
+        -v | --verbose)
+            export COVERAGE_VERBOSE=1
+            ;;
+        -s | --spacejam)
+            export RUN_SPACEJAM=1
+            ;;
+        *)
+    esac
+    shift
+done
+
+if [ "$RUN_COVERAGE" == 1 ];
+then
+    # Setting coverage variables
+    app_folder=$(pwd)
+    app_folder+="/packages/ascend-adaptive-reporting/"
+    export COVERAGE_APP_FOLDER=$app_folder
+    export COVERAGE=1
+    echo 'Running meteor-coverage'
+fi
+
+if [ "$RUN_SPACEJAM" == 1 ];
+then
+    spacejam-mocha ./packages/ascend-adaptive-reporting/ 
+else
+    meteor test-packages --driver-package='practicalmeteor:mocha' ./packages/ascend-adaptive-reporting/
+fi
\ No newline at end of file
diff --git a/Packages/ohif-viewerbase/.coverage.json b/Packages/ohif-viewerbase/.coverage.json
new file mode 100644
index 000000000..61f434b07
--- /dev/null
+++ b/Packages/ohif-viewerbase/.coverage.json
@@ -0,0 +1,46 @@
+{
+  "include": [
+      "server/*.js",
+      "client/*.js",
+      "both/*.js"
+  ],
+  "exclude": {
+      "general": [],
+      "server": [
+          "**/node_modules/**/*.json",
+          "**/.?*/**",
+          "**/packages/!(local-test_?*.js)",
+          "**/+([^:]):+([^:])/**",
+          "**/@(test|tests|spec|specs)/**",
+          "**/?(*.)test?(s).?*",
+          "**/?(*.)spec?(s).?*",
+          "**/?(*.)app-test?(s).?*",
+          "**/?(*.)app-spec?(s).?*"
+      ],
+      "client": [
+          "**/client/stylesheets/**",
+          "**/.npm/package/node_modules/**",
+          "**/web.browser/packages/**",
+          "**/.?*/**",
+          "**/packages/!(local-test_?*.js)",
+          "**/+([^:]):+([^:])/**",
+          "**/@(test|tests|spec|specs)/**",
+          "**/?(*.)test?(s).?*",
+          "**/?(*.)spec?(s).?*",
+          "**/?(*.)app-test?(s).?*",
+          "**/?(*.)app-spec?(s).?*"
+      ]
+  },
+  "remapFormat": [
+      "html",
+      "cobertura",
+      "clover",
+      "json",
+      "json-summary",
+      "lcovonly",
+      "teamcity",
+      "text",
+      "text-summary"
+  ],
+  "output": "./.coverage"
+}
\ No newline at end of file
diff --git a/Packages/ohif-viewerbase/package.js b/Packages/ohif-viewerbase/package.js
index 84f6cb280..39b523bb0 100644
--- a/Packages/ohif-viewerbase/package.js
+++ b/Packages/ohif-viewerbase/package.js
@@ -212,3 +212,51 @@ Package.onUse(function(api) {
     api.mainModule('main.js', 'client');
 
 });
+
+Package.onTest(function(api) {
+    const both = ['client', 'server'];
+
+    api.versionsFrom('1.4');
+
+    /*
+   * Really important dependencies to the project
+   */
+    api.use(['ecmascript',
+        'standard-app-packages',
+        'http',
+        'jquery',
+        'mongo',
+        'momentjs:moment',
+        'validatejs',
+        'u2622:persistent-session'
+    ], both);
+
+    // OHIF dependencies
+    api.use([
+        'lookback:logger',
+        'aldeed:simple-schema@1.5.3',
+        'ohif:design',
+        'ohif:core',
+        'ohif:hotkeys',
+        'ohif:log'
+    ], both);
+
+    /*
+     * Our custom packages
+     */
+    api.use('ohif:viewerbase', both);
+
+    /*
+    * Tests framework components
+    */
+    api.use('cultofcoders:mocha');
+    api.use('practicalmeteor:sinon');
+    api.use('practicalmeteor:chai');
+    api.use('lmieulet:meteor-coverage@1.1.4');
+    api.use('xolvio:template-isolator');
+
+    /*
+    * Adding all our tests files
+    */
+    api.addFiles('./tests/client/components/viewer/gridLayout/gridLayout.tests.js', 'client');
+});
diff --git a/Packages/ohif-viewerbase/tests/client/components/viewer/gridLayout/gridLayout.tests.js b/Packages/ohif-viewerbase/tests/client/components/viewer/gridLayout/gridLayout.tests.js
new file mode 100644
index 000000000..047df3c52
--- /dev/null
+++ b/Packages/ohif-viewerbase/tests/client/components/viewer/gridLayout/gridLayout.tests.js
@@ -0,0 +1,77 @@
+import { Template } from 'meteor/templating';
+import '../../../../../client/components/viewer/gridLayout/gridLayout.html';
+import '../../../../../client/components/viewer/gridLayout/gridLayout.js';
+import { Session } from 'meteor/session';
+import { sinon } from 'meteor/practicalmeteor:sinon';
+chai.should();
+
+describe('GridLayout', function() {
+    describe('Helpers', function() {
+        before(function() {
+            Template.instance = function() {
+                return {
+                    data: {
+                        rows: 2,
+                        columns: 2,
+                        viewportData: []
+                    }
+                }
+            }
+        });
+
+        it('should get the height percentage of each viewport', function() {
+            const percentage = Template.gridLayout.__helpers[' height']();
+
+            percentage.should.be.eq(50);
+        });
+
+        it('should get the width percentage of each viewport', function() {
+            const percentage = Template.gridLayout.__helpers[' height']();
+
+            percentage.should.be.eq(50);
+        });
+    })
+
+    after(function() {
+        Meteor.sendCoverage(function() { });
+    });
+
+    // describe('Testing getClass() Helper', function () {
+    //     it('should return priorDropdown', function () {
+    //         Session.set('isPrior', true);
+    //         Template.priorDropdown.__helpers.get('getClass')()
+    //             .should.equal('priorDropdown');
+    //     });
+
+    //     it('should return empty string', function () {
+    //         Session.set('isPrior', false);
+    //         Template.priorDropdown.__helpers.get('getClass')()
+    //             .should.equal('');
+    //     });
+    // });
+
+    // describe('Testing dropdown change event', function () {
+
+    //     let openPriorStudyWindowStub;
+    //     let test;
+
+    //     before(function () {
+
+    //         Template.instance = function () { return { openPriorStudyWindow: sinon.spy() } };
+
+    //         $.fn.select2 = function () {
+    //             return [{
+    //                 selectedIndex: 0,
+    //                 options: [{
+    //                     text: 'Attrial Septum'
+    //                 }]
+    //             }]
+    //         };
+    //     });
+
+    //     it('should return priorDropdown', function () {
+    //         Template.priorDropdown.fireEvent('change #studySelect');
+    //         // TODO: spy is not working
+    //     });
+    // });
+});
\ No newline at end of file
diff --git a/Packages/ohif-viewerbase/tests/coverage/exportCoverageReport.js b/Packages/ohif-viewerbase/tests/coverage/exportCoverageReport.js
new file mode 100644
index 000000000..ef72d2199
--- /dev/null
+++ b/Packages/ohif-viewerbase/tests/coverage/exportCoverageReport.js
@@ -0,0 +1,21 @@
+import { Meteor } from 'meteor/meteor';
+import { chai } from 'meteor/practicalmeteor:chai';
+import ReportService from 'meteor/lmieulet:meteor-coverage'
+
+chai.should();
+
+describe('Exporting coverage report', function() {
+    it('Generating coverage report', function() { });
+
+    after(function() {
+        const reportService = new ReportService.ReportService();
+        const mockRes = { end: () => { }, writeHead: () => { } };
+
+        // The possible reports
+        // Check https://github.com/serut/meteor-coverage
+        reportService.generateReport(mockRes, 'text-summary', {});
+        reportService.generateReport(mockRes, 'html', {});
+        reportService.generateReport(mockRes, 'json-summary', {});
+        reportService.generateReport(mockRes, 'lcovonly', {});
+    });
+});
\ No newline at end of file
diff --git a/test/README.md b/test/README.md
new file mode 100644
index 000000000..872204e5f
--- /dev/null
+++ b/test/README.md
@@ -0,0 +1,50 @@
+# Tests suite
+
+## Tools
++ mocha as test runner. 
+    + ~~meteor package: practicalmeteor:mocha 
+    https://github.com/practicalmeteor/meteor-mocha~~
+    + meteor package: cultofcoders:mocha 
+    https://github.com/cult-of-coders/meteor-mocha
+    + Using cultofcoders because of this issue: https://github.com/practicalmeteor/meteor-mocha/issues/100
+
++ chai as assertion library meteor package:
+    + practicalmeteor:chai https://github.com/practicalmeteor/meteor-chai
+
++ sinon as stubs, spies & mocking lib 
+    + practicalmeteor:meteor-sinon
+
++ meteor-coverage as tests coverage report (istanbul.js based) 
+    + https://atmospherejs.com/lmieulet/meteor-coverage
+
++ xolvio:template-isolator 
+    + Used for mock events on client side, like 'button click'.
+
++ spacejam:
+    + Use it when you want run tests in a CI server. It has no browser dependency.
+    + https://www.npmjs.com/package/spacejam
+
+## Useful links
+1. https://guide.meteor.com/testing.html
+2. https://guide.meteor.com/writing-atmosphere-packages.html#testing
+
+## Usage
+
+```
+$ cd Viewers
+$ ./test/testPackages.sh [-c] -s
+# -c for coverage | -s for spacejam
+```
+
+You can add more packages to be tested changing the line 7 in `testPackages.sh`:
+```
+TEST_PACKAGES=./Packages/ohif-viewerbase ./Packages/ohif-core ./Packages/ohif-etc
+```
+
+it does not work using path patterns like `./Packages/*` or `./Packages/`
+
+Just open  `http://localhost:3000` in your browser. The page going to be refreshed everytime you change the code.
+
+Note: if you want to use spacejam, just install it before running. 
+
+
diff --git a/test/testPackages.sh b/test/testPackages.sh
new file mode 100755
index 000000000..bc2cc9ae1
--- /dev/null
+++ b/test/testPackages.sh
@@ -0,0 +1,43 @@
+#!/bin/bash
+
+##################################################
+# Runs the packages tests
+##################################################
+
+TEST_PACKAGES=./Packages/ohif-viewerbase
+export METEOR_PACKAGE_DIRS="./Packages"
+
+# check execution arguments
+while [ "$1" != "" ]; do
+    PARAM=`echo $1 | awk -F= '{print $1}'`
+    case $PARAM in
+        -c | --coverage)
+            export RUN_COVERAGE=1
+            ;;
+        -v | --verbose)
+            export COVERAGE_VERBOSE=1
+            ;;
+        -s | --spacejam)
+            export RUN_SPACEJAM=1
+            ;;
+        *)
+    esac
+    shift
+done
+
+if [ "$RUN_COVERAGE" == 1 ];
+then
+    # Setting coverage variables
+    app_folder=$(pwd)
+    app_folder+=TEST_PACKAGES
+    export COVERAGE_APP_FOLDER=$app_folder
+    export COVERAGE=1
+    echo 'Running meteor-coverage'
+fi
+
+if [ "$RUN_SPACEJAM" == 1 ];
+then
+    spacejam-mocha $TEST_PACKAGES
+else
+    meteor test-packages --driver-package='cultofcoders:mocha' $TEST_PACKAGES
+fi
\ No newline at end of file