Convert auth package to kotlin (#5966)

* Convert SessionManager to kotlin along with other small fixes

* Convert WikiAccountAuthenticator to kotlin

* Migrate WikiAccountAuthenticatorService to kotlin

* Converted AccountUtil to kotlin

* Convert SignupActivity to kotlin

* Convert LoginActivity to kotlin

* Merge from main

app/src/test/kotlin/fr/free/nrw/commons/TestCommonsApplication.kt

@@ -6,7 +6,6 @@ import android.content.Context
 import androidx.collection.LruCache
 import com.google.gson.Gson
 import com.nhaarman.mockitokotlin2.mock
-import fr.free.nrw.commons.auth.AccountUtil
 import fr.free.nrw.commons.data.DBOpenHelper
 import fr.free.nrw.commons.di.CommonsApplicationComponent
 import fr.free.nrw.commons.di.CommonsApplicationModule
@@ -41,7 +40,6 @@ class TestCommonsApplication : Application() {
 class MockCommonsApplicationModule(
     appContext: Context,
 ) : CommonsApplicationModule(appContext) {
-    val accountUtil: AccountUtil = mock()
     val defaultSharedPreferences: JsonKvStore = mock()
     val locationServiceManager: LocationServiceManager = mock()
     val mockDbOpenHelper: DBOpenHelper = mock()
@@ -58,8 +56,6 @@ class MockCommonsApplicationModule(
 
     override fun provideModificationContentProviderClient(context: Context?): ContentProviderClient = modificationClient
 
-    override fun providesAccountUtil(context: Context): AccountUtil = accountUtil
-
     override fun providesDefaultKvStore(
         context: Context,
         gson: Gson,

app/src/test/kotlin/fr/free/nrw/commons/auth/AccountUtilUnitTest.kt

@@ -15,25 +15,17 @@ import org.robolectric.annotation.Config
 @Config(sdk = [21], application = TestCommonsApplication::class)
 class AccountUtilUnitTest {
     private lateinit var context: FakeContextWrapper
-    private lateinit var accountUtil: AccountUtil
 
     @Before
     @Throws(Exception::class)
     fun setUp() {
         context = FakeContextWrapper(ApplicationProvider.getApplicationContext())
-        accountUtil = AccountUtil()
-    }
-
-    @Test
-    @Throws(Exception::class)
-    fun checkNotNull() {
-        Assert.assertNotNull(accountUtil)
     }
 
     @Test
     @Throws(Exception::class)
     fun testGetUserName() {
-        Assert.assertEquals(AccountUtil.getUserName(context), "test@example.com")
+        Assert.assertEquals(getUserName(context), "test@example.com")
     }
 
     @Test
@@ -41,13 +33,13 @@ class AccountUtilUnitTest {
     fun testGetUserNameWithException() {
         val context =
             FakeContextWrapperWithException(ApplicationProvider.getApplicationContext())
-        Assert.assertEquals(AccountUtil.getUserName(context), null)
+        Assert.assertEquals(getUserName(context), null)
     }
 
     @Test
     @Throws(Exception::class)
     fun testAccount() {
-        Assert.assertEquals(AccountUtil.account(context)?.name, "test@example.com")
+        Assert.assertEquals(account(context)?.name, "test@example.com")
     }
 
     @Test
@@ -55,6 +47,6 @@ class AccountUtilUnitTest {
     fun testAccountWithException() {
         val context =
             FakeContextWrapperWithException(ApplicationProvider.getApplicationContext())
-        Assert.assertEquals(AccountUtil.account(context), null)
+        Assert.assertEquals(account(context), null)
     }
 }

app/src/test/kotlin/fr/free/nrw/commons/auth/LoginActivityUnitTests.kt

@@ -218,17 +218,6 @@ class LoginActivityUnitTests {
         method.invoke(activity)
     }
 
-    @Test
-    @Throws(Exception::class)
-    fun testHideProgress() {
-        val method: Method =
-            LoginActivity::class.java.getDeclaredMethod(
-                "hideProgress",
-            )
-        method.isAccessible = true
-        method.invoke(activity)
-    }
-
     @Test
     @Throws(Exception::class)
     fun testOnResume() {

app/src/test/kotlin/fr/free/nrw/commons/auth/WikiAccountAuthenticatorServiceUnitTest.kt

@@ -3,18 +3,13 @@ package fr.free.nrw.commons.auth
 import org.junit.Assert
 import org.junit.Before
 import org.junit.Test
+import org.mockito.Mockito
+import org.mockito.Mockito.mock
 import org.mockito.MockitoAnnotations
 import java.lang.reflect.Field
 
 class WikiAccountAuthenticatorServiceUnitTest {
-    private lateinit var service: WikiAccountAuthenticatorService
-
-    @Before
-    fun setUp() {
-        MockitoAnnotations.openMocks(this)
-        service = WikiAccountAuthenticatorService()
-        service.onBind(null)
-    }
+    private val service = WikiAccountAuthenticatorService()
 
     @Test
     fun checkNotNull() {
@@ -23,10 +18,9 @@ class WikiAccountAuthenticatorServiceUnitTest {
 
     @Test
     fun testOnBindCaseNull() {
-        val field: Field =
-            WikiAccountAuthenticatorService::class.java.getDeclaredField("authenticator")
+        val field: Field = WikiAccountAuthenticatorService::class.java.getDeclaredField("authenticator")
         field.isAccessible = true
         field.set(service, null)
-        Assert.assertEquals(service.onBind(null), null)
+        Assert.assertEquals(service.onBind(mock()), null)
     }
 }

app/src/test/kotlin/fr/free/nrw/commons/auth/WikiAccountAuthenticatorUnitTest.kt

@@ -86,10 +86,7 @@ class WikiAccountAuthenticatorUnitTest {
 
     @Test
     fun testGetAuthTokenLabelCaseNonNull() {
-        Assert.assertEquals(
-            authenticator.getAuthTokenLabel(BuildConfig.ACCOUNT_TYPE),
-            AccountUtil.AUTH_TOKEN_TYPE,
-        )
+        Assert.assertEquals(authenticator.getAuthTokenLabel(BuildConfig.ACCOUNT_TYPE), AUTH_TOKEN_TYPE)
     }
 
     @Test