diff --git a/.travis.yml b/.travis.yml
index 5e73d0a..8b629cf 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -6,9 +6,12 @@ android:
     - platform-tools
     - build-tools-23.0.1
     - android-23
+    - extra-android-m2repository
+    - extra-google-m2repository
 
 script:
-   - ./options/gradlew build
+   - cd options
+   - ./gradlew build check
    
 after_success:
-  - bash <(curl -s https://codecov.io/bash)
\ No newline at end of file
+  - bash <(curl -s https://codecov.io/bash)
diff --git a/README.md b/README.md
index f194bca..0c117d5 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,7 @@
 
 # Options 
 [![Build Status](https://travis-ci.org/tomaszpolanski/Options.svg?branch=master)](https://travis-ci.org/tomaszpolanski/Options)
+[![codecov.io](http://codecov.io/github/tomaszpolanski/Options/coverage.svg?branch=master)](http://codecov.io/github/tomaszpolanski/Options?branch=master)
 [![Method count](https://img.shields.io/badge/Methods and size-core: 118 | deps: 20 | 16 KB-e91e63.svg)](http://www.methodscount.com/?lib=com.github.tomaszpolanski%3Aoptions%3A1.2.0)
 
 [Functional Option](https://en.wikipedia.org/wiki/Option_type) that can be used with Java 1.7 and Android.
diff --git a/options/core/build.gradle b/options/core/build.gradle
index c00500b..067b4f7 100644
--- a/options/core/build.gradle
+++ b/options/core/build.gradle
@@ -1,12 +1,26 @@
 apply plugin: 'java'
 apply plugin: 'kotlin'
+apply plugin: 'jacoco'
 
 group = 'com.github.tomaszpolanski'
 
+jacocoTestReport {
+    reports {
+        xml.enabled = true
+        html.enabled = true
+    }
+}
+
+check.dependsOn jacocoTestReport
+
 buildscript {
     ext.kotlin_version = '1.0.1-2'
     repositories {
+        mavenLocal()
+        mavenCentral()
         jcenter()
+
+        maven { url "http://repo1.maven.org/maven2/" }
     }
     dependencies {
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:1.0.1-2"
@@ -56,4 +70,4 @@ task javadocJar(type: Jar, dependsOn: javadoc) {
 artifacts {
     archives sourcesJar
     archives javadocJar
-}
\ No newline at end of file
+}