Add more tests

Author: mrapplexz

src/commonTest/kotlin/net/pearx/kpastebin/test/InvalidUserKeyTest.kt

@@ -27,20 +27,29 @@ class InvalidUserKeyTest {
         assertFailsWith<InvalidUserKeyException> {
             createClient(userKey = "invalid").listPastes()
         }
+        assertFailsWith<InvalidUserKeyException> {
+            createClient().listPastes()
+        }
     }
 
     @Test
     fun deletingPaste() = runTest {
         assertFailsWith<InvalidUserKeyException> {
             createClient(userKey = "invalid").deletePaste(pastes.keys.first())
         }
+        assertFailsWith<InvalidUserKeyException> {
+            createClient().deletePaste(pastes.keys.first())
+        }
     }
 
     @Test
     fun gettingUserDetails() = runTest {
         assertFailsWith<InvalidUserKeyException> {
             createClient(userKey = "invalid").getUserDetails()
         }
+        assertFailsWith<InvalidUserKeyException> {
+            createClient().getUserDetails()
+        }
     }
 
     @Test

src/commonTest/kotlin/net/pearx/kpastebin/test/LoggedInTest.kt

@@ -9,10 +9,7 @@ package net.pearx.kpastebin.test
 
 import net.pearx.kpastebin.PasteNotFoundException
 import net.pearx.kpastebin.model.*
-import net.pearx.kpastebin.test.helper.createClient
-import net.pearx.kpastebin.test.helper.globalUserKey
-import net.pearx.kpastebin.test.helper.pastes
-import net.pearx.kpastebin.test.helper.runTest
+import net.pearx.kpastebin.test.helper.*
 import kotlin.test.Test
 import kotlin.test.assertEquals
 import kotlin.test.assertFailsWith
@@ -104,4 +101,9 @@ class LoggedInTest {
             assertEquals(text, createClient(userKey = globalUserKey).getPaste(key))
         }
     }
+
+    @Test
+    fun gettingPastesEmpty() = runTest {
+        assertEquals(listOf(), createClient(userKey = emptyPastesUserKey).listPastes())
+    }
 }