Refactoring - Created CommonPartOfViewModelTest class, and move commo…

…n code of WalletViewModel class into it

dorian-steem-apps-v1/dorian-steem-ui/src/test/java/lee/dorian/steem_ui/ui/wallet/CommonPartOfViewModelTest.kt

@@ -0,0 +1,38 @@
+package lee.dorian.steem_ui.ui.wallet
+
+import androidx.arch.core.executor.testing.InstantTaskExecutorRule
+import io.reactivex.android.plugins.RxAndroidPlugins
+import io.reactivex.plugins.RxJavaPlugins
+import io.reactivex.schedulers.Schedulers
+import org.junit.AfterClass
+import org.junit.BeforeClass
+import org.junit.Rule
+
+open class CommonPartOfViewModelTest {
+
+    @Rule
+    @JvmField
+    val instantExecutorRule = InstantTaskExecutorRule()
+
+    companion object {
+        @JvmStatic
+        @BeforeClass
+        fun setUp() {
+            // Refer to https://medium.com/@jungil.han/junit-rxjava-%EA%B7%B8%EB%A6%AC%EA%B3%A0-%EC%BB%B4%ED%8C%A8%EB%8B%88%EC%96%B8-%EC%98%A4%EB%B8%8C%EC%A0%9D%ED%8A%B8-e8d17b674bdd
+            RxJavaPlugins.setIoSchedulerHandler {
+                Schedulers.trampoline()
+            }
+            RxAndroidPlugins.setInitMainThreadSchedulerHandler {
+                Schedulers.trampoline()
+            }
+        }
+
+        @JvmStatic
+        @AfterClass
+        fun teardown() {
+            RxJavaPlugins.reset()
+            RxAndroidPlugins.reset()
+        }
+    }
+
+}

dorian-steem-apps-v1/dorian-steem-ui/src/test/java/lee/dorian/steem_ui/ui/wallet/WalletViewModelTest.kt

@@ -1,43 +1,14 @@
 package lee.dorian.steem_ui.ui.wallet
 
-import androidx.arch.core.executor.testing.InstantTaskExecutorRule
-import io.reactivex.android.plugins.RxAndroidPlugins
-import io.reactivex.plugins.RxJavaPlugins
-import io.reactivex.schedulers.Schedulers
 import org.junit.*
 
 import org.junit.Assert.*
 
 // To test WalletViewModel class
-class WalletViewModelTest {
-
-    @Rule
-    @JvmField
-    val instantExecutorRule = InstantTaskExecutorRule()
+class WalletViewModelTest : CommonPartOfViewModelTest() {
 
     var walletViewModel = WalletViewModel()
 
-    companion object {
-        @JvmStatic
-        @BeforeClass
-        fun setUp() {
-            // Refer to https://medium.com/@jungil.han/junit-rxjava-%EA%B7%B8%EB%A6%AC%EA%B3%A0-%EC%BB%B4%ED%8C%A8%EB%8B%88%EC%96%B8-%EC%98%A4%EB%B8%8C%EC%A0%9D%ED%8A%B8-e8d17b674bdd
-            RxJavaPlugins.setIoSchedulerHandler {
-                Schedulers.trampoline()
-            }
-            RxAndroidPlugins.setInitMainThreadSchedulerHandler {
-                Schedulers.trampoline()
-            }
-        }
-
-        @JvmStatic
-        @AfterClass
-        fun teardown() {
-            RxJavaPlugins.reset()
-            RxAndroidPlugins.reset()
-        }
-    }
-
     // Test case 1: Trying to get the wallet of a valid account.
     @Test
     fun readSteemitWallet_case1() {