Restored WkdClientTest with a few changes.| #1201

FlowCrypt/src/test/java/com/flowcrypt/email/api/email/WkdClientTest.kt

@@ -0,0 +1,52 @@
+/*
+ * © 2016-present FlowCrypt a.s. Limitations apply. Contact [email protected]
+ * Contributors:
+ * Ivan Pizhenko
+ * DenBond7
+ */
+
+package com.flowcrypt.email.api.email
+
+import com.flowcrypt.email.api.wkd.WkdClient
+import kotlinx.coroutines.runBlocking
+import org.junit.Assert.assertTrue
+import org.junit.Test
+import org.junit.runner.RunWith
+import org.robolectric.RobolectricTestRunner
+import org.robolectric.RuntimeEnvironment
+
+@RunWith(RobolectricTestRunner::class)
+class WkdClientTest {
+  @Test
+  fun existingEmailTest() = runBlocking {
+    val keys =
+      WkdClient.lookupEmail(RuntimeEnvironment.getApplication(), "[email protected]")
+    assertTrue("Key not found", keys != null)
+    assertTrue("There are no keys in the key collection", keys!!.keyRings.hasNext())
+  }
+
+  @Test
+  fun nonExistingEmailTest1() = runBlocking {
+    val keys = WkdClient.lookupEmail(
+      RuntimeEnvironment.getApplication(),
+      "[email protected]"
+    )
+    assertTrue("Key found for non-existing email", keys == null)
+  }
+
+  @Test
+  fun nonExistingEmailTest2() = runBlocking {
+    val keys = WkdClient.lookupEmail(RuntimeEnvironment.getApplication(), "[email protected]")
+    assertTrue("Key found for non-existing email", keys == null)
+  }
+
+  @Test
+  fun nonExistingDomainTest() = runBlocking {
+    val keys = WkdClient.lookupEmail(
+      RuntimeEnvironment.getApplication(),
+      "[email protected]"
+    )
+    assertTrue("Key found for non-existing email", keys == null)
+  }
+}
+