all: smoother network utils protocol testing (fixes #12242) (#12164)

Author: dogi

app/build.gradle

@@ -12,8 +12,8 @@ android {
         applicationId "org.ole.planet.myplanet"
         minSdk = 26
         targetSdk = 36
-        versionCode = 4988
-        versionName = "0.49.88"
+        versionCode = 4989
+        versionName = "0.49.89"
         ndkVersion = '26.3.11579264'
         vectorDrawables.useSupportLibrary = true
     }

app/src/test/java/org/ole/planet/myplanet/utils/NetworkUtilsTest.kt

@@ -0,0 +1,64 @@
+package org.ole.planet.myplanet.utils
+
+import dagger.hilt.android.testing.HiltAndroidRule
+import dagger.hilt.android.testing.HiltAndroidTest
+import dagger.hilt.android.testing.HiltTestApplication
+import org.junit.Assert.assertEquals
+import org.junit.Assert.assertNull
+import org.junit.Before
+import org.junit.Rule
+import org.junit.Test
+import org.junit.runner.RunWith
+import org.robolectric.RobolectricTestRunner
+import org.robolectric.annotation.Config
+import org.robolectric.annotation.LooperMode
+
+@HiltAndroidTest
+@RunWith(RobolectricTestRunner::class)
+@Config(application = HiltTestApplication::class, sdk = [33])
+@LooperMode(LooperMode.Mode.PAUSED)
+class NetworkUtilsTest {
+
+    @get:Rule
+    val hiltRule = HiltAndroidRule(this)
+
+    @Before
+    fun init() {
+        hiltRule.inject()
+    }
+
+    @Test
+    fun extractProtocol_withHttpUrl() {
+        assertEquals("http://", NetworkUtils.extractProtocol("http://example.com"))
+    }
+
+    @Test
+    fun extractProtocol_withHttpsUrl() {
+        assertEquals("https://", NetworkUtils.extractProtocol("https://example.com/path"))
+    }
+
+    @Test
+    fun extractProtocol_withFtpUrl() {
+        assertEquals("ftp://", NetworkUtils.extractProtocol("ftp://192.168.1.1"))
+    }
+
+    @Test
+    fun extractProtocol_withCustomScheme() {
+        assertEquals("custom://", NetworkUtils.extractProtocol("custom://app"))
+    }
+
+    @Test
+    fun extractProtocol_withNoScheme() {
+        assertNull(NetworkUtils.extractProtocol("example.com"))
+    }
+
+    @Test
+    fun extractProtocol_withRelativeUrl() {
+        assertNull(NetworkUtils.extractProtocol("//example.com"))
+    }
+
+    @Test
+    fun extractProtocol_withEmptyString() {
+        assertNull(NetworkUtils.extractProtocol(""))
+    }
+}