app/build.gradle

@@ -70,6 +70,10 @@ dependencies {
     testImplementation "com.squareup.okhttp3:mockwebserver:4.2.1"
     androidTestImplementation 'androidx.test.ext:junit:1.1.1'
     androidTestImplementation 'androidx.test.espresso:espresso-core:3.2.0'
+    androidTestImplementation 'androidx.test:runner:1.2.0'
+    androidTestImplementation 'androidx.test:rules:1.2.0'
+
+
 
     implementation "com.squareup.retrofit2:retrofit:2.6.2"
     implementation "com.squareup.retrofit2:converter-gson:2.6.2"

app/src/androidTest/java/it/unisannio/ding/ids/wedroid/app/view/LoginActivityTest.kt

@@ -0,0 +1,69 @@
+package it.unisannio.ding.ids.wedroid.app.view
+
+import androidx.test.espresso.Espresso.closeSoftKeyboard
+import androidx.test.espresso.Espresso.onView
+import androidx.test.espresso.action.ViewActions.click
+import androidx.test.espresso.action.ViewActions.typeText
+import androidx.test.espresso.assertion.ViewAssertions.matches
+import androidx.test.espresso.matcher.RootMatchers.withDecorView
+import androidx.test.espresso.matcher.ViewMatchers.*
+import androidx.test.ext.junit.runners.AndroidJUnit4
+import androidx.test.filters.LargeTest
+import androidx.test.rule.ActivityTestRule
+import it.unisannio.ding.ids.wedroid.app.R
+import org.hamcrest.CoreMatchers.not
+import org.junit.Rule
+import org.junit.Test
+import org.junit.runner.RunWith
+
+@RunWith(AndroidJUnit4::class)
+@LargeTest
+class LoginActivityTest {
+    @get:Rule
+    val activityRule = ActivityTestRule(LoginActivity::class.java)
+
+    @Test
+    fun loginWithEmptyUrl() {
+        onView(withId(R.id.username))
+            .perform(typeText("username"))
+        onView(withId(R.id.password))
+            .perform(typeText("password"))
+        closeSoftKeyboard()
+        onView(withId(R.id.button))
+            .perform(click())
+
+        onView(withText("Riempire tutti i campi"))
+            .inRoot(withDecorView(not(activityRule.activity.window.decorView)))
+           .check(matches(isDisplayed()))
+    }
+
+    @Test
+    fun loginWithEmptyUsername() {
+        onView(withId(R.id.instanceServer))
+            .perform(typeText("instanceServer"))
+        onView(withId(R.id.password))
+            .perform(typeText("password"))
+        closeSoftKeyboard()
+        onView(withId(R.id.button))
+            .perform(click())
+        onView(withText("Riempire tutti i campi"))
+            .inRoot(withDecorView(not(activityRule.activity.window.decorView)))
+            .check(matches(isDisplayed()))
+
+    }
+
+    @Test
+    fun loginWithEmptyPassword() {
+        onView(withId(R.id.instanceServer))
+            .perform(typeText("instanceServer"))
+        onView(withId(R.id.username))
+            .perform(typeText("username"))
+        closeSoftKeyboard()
+        onView(withId(R.id.button))
+            .perform(click())
+        onView(withText("Riempire tutti i campi"))
+            .inRoot(withDecorView(not(activityRule.activity.window.decorView)))
+            .check(matches(isDisplayed()))
+    }
+    
+}

app/src/main/java/it/unisannio/ding/ids/wedroid/app/view/LoginActivity.kt

@@ -31,7 +31,7 @@ class LoginActivity : AppCompatActivity() {
     }
 
     fun loginButton(v: View) {
-        if (username.text.isBlank() || istanceServer.text.isBlank() || password.text.isBlank()) {
+        if (username.text.isBlank() || instanceServer.text.isBlank() || password.text.isBlank()) {
             Toast.makeText(this, "Riempire tutti i campi", Toast.LENGTH_LONG)
                 .show()
             return
@@ -43,7 +43,7 @@ class LoginActivity : AppCompatActivity() {
 
         val service = Retrofit.Builder()
             .addConverterFactory(GsonConverterFactory.create())
-            .baseUrl(istanceServer.text.toString())
+            .baseUrl(instanceServer.text.toString())
             .build()
             .create(LoginService::class.java)
 
@@ -69,7 +69,7 @@ class LoginActivity : AppCompatActivity() {
                     return
                 }
                 val users = response.body()
-                sph.baseUrl = istanceServer.text.toString()
+                sph.baseUrl = instanceServer.text.toString()
                 sph.token = users?.token
                 sph.userId = users?.id
 

app/src/main/res/layout/activity_login.xml

@@ -42,7 +42,7 @@
         app:layout_constraintStart_toStartOf="parent" />
 
     <EditText
-        android:id="@+id/istanceServer"
+        android:id="@+id/instanceServer"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:layout_marginBottom="50dp"