properly handle no credentials being provided to tests

Author: adamint

src/commonTest/kotlin/com.adamratzman/spotify/Common.kt

@@ -6,36 +6,29 @@ val _clientSecret = getEnvironmentVariable("SPOTIFY_CLIENT_SECRET")
 val _redirectUri = getEnvironmentVariable("SPOTIFY_REDIRECT_URI")
 val _tokenString = getEnvironmentVariable("SPOTIFY_TOKEN_STRING")
 
-val api = {
-    println(_redirectUri)
-    println(_clientId)
-println(_redirectUri.isNullOrBlank())
-    println(_clientId.isNullOrBlank())
-
-}.let {  when {
-    _redirectUri?.isNotBlank() != true -> {
-        spotifyAppApi {
+val api = when {
+    _redirectUri?.isNotBlank() == true -> {
+        spotifyClientApi {
             credentials {
                 clientId = _clientId
                 clientSecret = _clientSecret
+                redirectUri = _redirectUri
+            }
+            authorization {
+                tokenString = _tokenString
             }
         }.build()
     }
     _clientId?.isNotBlank() == true -> {
-        spotifyClientApi {
+        spotifyAppApi {
             credentials {
                 clientId = _clientId
                 clientSecret = _clientSecret
-                redirectUri = _redirectUri
-            }
-            authorization {
-                tokenString = _tokenString
             }
         }.build()
     }
     else -> null
 }
-}
 
 expect fun getEnvironmentVariable(name: String): String?
 

src/commonTest/kotlin/com.adamratzman/spotify/utilities/UtilityTests.kt

@@ -59,6 +59,7 @@ class UtilityTests : Spek({
             }
 
             it("Refresh on invalid token") {
+                if (api == null) return@it
                 val api = spotifyAppApi {
                     credentials {
                         clientId = getEnvironmentVariable("SPOTIFY_CLIENT_ID")
@@ -68,6 +69,7 @@ class UtilityTests : Spek({
             }
 
             it("Automatic refresh") {
+                if (api == null) return@it
                 val api = spotifyAppApi {
                     credentials {
                         clientId = getEnvironmentVariable("SPOTIFY_CLIENT_ID")