Add scrobble call.

Signed-off-by: Yahor Berdnikau <egorr.berd@gmail.com>

subsonic-api/src/integrationTest/kotlin/org/moire/ultrasonic/api/subsonic/SubsonicApiScrobbleTest.kt

@@ -0,0 +1,55 @@
+package org.moire.ultrasonic.api.subsonic
+
+import org.junit.Test
+import java.util.Calendar
+
+/**
+ * Integration test for [SubsonicAPIClient] for scrobble call.
+ */
+class SubsonicApiScrobbleTest : SubsonicAPIClientTest() {
+    @Test
+    fun `Should handle error response`() {
+        checkErrorCallParsed(mockWebServerRule) {
+            client.api.scrobble("id").execute()
+        }
+    }
+
+    @Test
+    fun `Should handle ok response`() {
+        mockWebServerRule.enqueueResponse("ping_ok.json")
+
+        val response = client.api.scrobble("id").execute()
+
+        assertResponseSuccessful(response)
+    }
+
+    @Test
+    fun `Should pass id param in request`() {
+        val id = "some-id"
+
+        mockWebServerRule.assertRequestParam(responseResourceName = "ping_ok.json",
+                expectedParam = "id=$id") {
+            client.api.scrobble(id = id).execute()
+        }
+    }
+
+    @Test
+    fun `Should pass time param in request`() {
+        val time = Calendar.getInstance().timeInMillis
+
+        mockWebServerRule.assertRequestParam(responseResourceName = "ping_ok.json",
+                expectedParam = "time=$time") {
+            client.api.scrobble(id = "some-id", time = time).execute()
+        }
+    }
+
+    @Test
+    fun `Should pass submission param in request`() {
+        val submission = false
+
+        mockWebServerRule.assertRequestParam(responseResourceName = "ping_ok.json",
+                expectedParam = "submission=$submission") {
+            client.api.scrobble(id = "some-id", submission = submission).execute()
+        }
+    }
+}

subsonic-api/src/main/kotlin/org/moire/ultrasonic/api/subsonic/SubsonicAPIDefinition.kt

@@ -118,4 +118,9 @@ interface SubsonicAPIDefinition {
     @GET("getLyrics.view")
     fun getLyrics(@Query("artist") artist: String? = null,
                   @Query("title") title: String? = null): Call<GetLyricsResponse>
+
+    @GET("scrobble.view")
+    fun scrobble(@Query("id") id: String,
+                 @Query("time") time: Long? = null,
+                 @Query("submission") submission: Boolean? = null): Call<SubsonicResponse>
 }