implement testing and create a simple test for Userlist

testing/build.gradle

@@ -1,6 +1,14 @@
 apply plugin: 'com.android.library'
 apply from: '../core.gradle'
+apply from: 'versions.gradle'
 
 dependencies {
-    implementation project(':base')
+    api deps.testing.junit
+    api deps.testing.koin
+    api deps.testing.core
+    api deps.testing.rules
+    api deps.testing.runner
+    api deps.testing.ext
+    api deps.testing.espresso
+    api deps.testing.fragments
 }

testing/src/main/java/com/hako/testing/TestingExtensions.kt

@@ -0,0 +1,10 @@
+package com.hako.testing
+
+import androidx.annotation.RestrictTo
+import androidx.test.espresso.Espresso.onView
+import androidx.test.espresso.matcher.ViewMatchers
+import androidx.test.espresso.matcher.ViewMatchers.withText
+import androidx.test.espresso.assertion.ViewAssertions.matches
+
+@RestrictTo(RestrictTo.Scope.TESTS)
+fun String.isTextDisplayed() = onView(withText(this)).check(matches(ViewMatchers.isDisplayed()))

testing/versions.gradle

@@ -0,0 +1,24 @@
+ext.deps = [:]
+
+def versions = [:]
+versions.koin = "2.0.1"
+versions.junit = "4.13"
+versions.test = "1.2.0"
+versions.test_ext = "1.1.1"
+versions.espresso = "3.2.0"
+versions.fragments = "1.2.0"
+
+def deps = [:]
+
+def testing = [:]
+testing.junit = "junit:junit:$versions.junit"
+testing.core = "androidx.test:core:$versions.test"
+testing.rules = "androidx.test:rules:$versions.test"
+testing.runner = "androidx.test:runner:$versions.test"
+testing.ext = "androidx.test.ext:junit:$versions.test_ext"
+testing.koin = "org.koin:koin-test:$versions.koin"
+testing.espresso = "androidx.test.espresso:espresso-core:$versions.espresso"
+testing.fragments = "androidx.fragment:fragment-testing:$versions.fragments"
+deps.testing = testing
+
+ext.deps = deps