Add createBookmark() call.

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

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

@@ -0,0 +1,51 @@
+package org.moire.ultrasonic.api.subsonic
+
+import org.junit.Test
+
+/**
+ * Integration test for [SubsonicAPIDefinition.createBookmark] call.
+ */
+class SubsonicApiCreateBookmarkTest : SubsonicAPIClientTest() {
+    @Test
+    fun `Should handle error response`() {
+        checkErrorCallParsed(mockWebServerRule) {
+            client.api.createBookmark(1, 1).execute()
+        }
+    }
+
+    @Test
+    fun `Should handle ok response`() {
+        mockWebServerRule.enqueueResponse("ping_ok.json")
+
+        val response = client.api.createBookmark(213, 123213L).execute()
+
+        assertResponseSuccessful(response)
+    }
+
+    @Test
+    fun `Should pass id in request params`() {
+        val id = 544
+
+        mockWebServerRule.assertRequestParam(expectedParam = "id=$id") {
+            client.api.createBookmark(id = id, position = 123).execute()
+        }
+    }
+
+    @Test
+    fun `Should pass position in request params`() {
+        val position = 4412333L
+
+        mockWebServerRule.assertRequestParam(expectedParam = "position=$position") {
+            client.api.createBookmark(id = 12, position = position).execute()
+        }
+    }
+
+    @Test
+    fun `Should pass comment in request params`() {
+        val comment = "some-comment"
+
+        mockWebServerRule.assertRequestParam(expectedParam = "comment=$comment") {
+            client.api.createBookmark(id = 1, position = 1, comment = comment).execute()
+        }
+    }
+}

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

@@ -224,4 +224,10 @@ interface SubsonicAPIDefinition {
 
     @GET("getBookmarks.view")
     fun getBookmarks(): Call<BookmarksResponse>
+
+    @GET("createBookmark.view")
+    fun createBookmark(
+            @Query("id") id: Int,
+            @Query("position") position: Long,
+            @Query("comment") comment: String? = null): Call<SubsonicResponse>
 }