chore: [#274] initial setup test using JUnit & MockK

app/build.gradle

@@ -365,6 +365,10 @@ dependencies {
 
     // Get the latest version from https://mvnrepository.com/artifact/com.appsflyer/af-android-sdk
     implementation 'com.appsflyer:af-android-sdk:6.15.1'
+
+    //test
+    testImplementation "io.mockk:mockk:1.13.13"
+    testImplementation 'junit:junit:4.13.2'
 }
 
 

app/src/test/java/com/breadwallet/tools/util/LocaleHelperTest.kt

@@ -0,0 +1,25 @@
+package com.breadwallet.tools.util
+
+import android.content.Context
+import com.breadwallet.entities.Language
+import io.mockk.mockk
+import org.junit.Assert.assertEquals
+import org.junit.Assert.assertTrue
+import org.junit.Test
+
+class LocaleHelperTest {
+
+    @Test
+    fun `given LocaleHelper instance, then should validate default value`() {
+        val context: Context = mockk(relaxed = true)
+
+        LocaleHelper.init(context)
+
+        val currentLocale = LocaleHelper.instance.currentLocale
+
+        assertTrue(currentLocale == Language.ENGLISH)
+        assertEquals("en", currentLocale.code)
+        assertEquals("English", currentLocale.title)
+        assertEquals("Select language", currentLocale.desc)
+    }
+}