Add Espresso dependencies to your project with separated dependencies file :)

build.gradle

    testCompile testDependencies.junit
    testCompile testDependencies.hamcrest

    //Provides AndroidJUnitRunner
    androidTestCompile (testDependencies.runner) {
        exclude group: 'com.android.support', module: 'appcompat'
        exclude group: 'com.android.support', module: 'support-v4'
        exclude module: 'recyclerview-v7'
        exclude module: 'support-annotations'
    }
    // Provides JUnit 4 rules
    androidTestCompile (testDependencies.rules) {
        exclude group: 'com.android.support', module: 'appcompat'
        exclude group: 'com.android.support', module: 'support-v4'
        exclude module: 'recyclerview-v7'
        exclude module: 'support-annotations'
    }
    // Builds and runs Espresso tests
    androidTestCompile (testDependencies.espresso_core) {
        exclude group: 'com.android.support', module: 'appcompat'
        exclude group: 'com.android.support', module: 'support-v4'
        exclude module: 'recyclerview-v7'
        exclude module: 'support-annotations'
    }

    androidTestCompile (testDependencies.espresso_intent) {
        exclude group: 'com.android.support', module: 'appcompat'
        exclude group: 'com.android.support', module: 'support-v4'
        exclude module: 'recyclerview-v7'
        exclude module: 'support-annotations'
    }

    androidTestCompile (testDependencies.espresso_contrib) {
        exclude group: 'com.android.support', module: 'appcompat'
        exclude group: 'com.android.support', module: 'support-v4'
        exclude module: 'recyclerview-v7'
        exclude module: 'support-annotations'
    }

dependencies.gradle

ext {
    testDependencies = [
            junit: "junit:junit:4.12",
            hamcrest: "org.hamcrest:hamcrest-all:1.3",
            runner: "com.android.support.test:runner:0.4.1",
            rules: "com.android.support.test:rules:0.4.1",
            espresso_core: "com.android.support.test.espresso:espresso-core:2.2.1",
            espresso_intent: "com.android.support.test.espresso:espresso-intents:2.2.1",
            espresso_contrib: "com.android.support.test.espresso:espresso-contrib:2.2.1"
    ]
}