feat(AssistantV1): Add option to sort results in getWorkspace()

Source/AssistantV1/Assistant.swift

@@ -359,13 +359,17 @@ public class Assistant {
        subelements, is included.
      - parameter includeAudit: Whether to include the audit properties (`created` and `updated` timestamps) in the
        response.
+     - parameter sort: Indicates how the returned workspace data will be sorted. This parameter is valid only if
+       **export**=`true`. Specify `sort=stable` to sort all workspace objects by unique identifier, in ascending
+       alphabetical order.
      - parameter headers: A dictionary of request headers to be sent with this request.
      - parameter completionHandler: A function executed when the request completes with a successful result or error
      */
     public func getWorkspace(
         workspaceID: String,
         export: Bool? = nil,
         includeAudit: Bool? = nil,
+        sort: String? = nil,
         headers: [String: String]? = nil,
         completionHandler: @escaping (WatsonResponse<WorkspaceExport>?, WatsonError?) -> Void)
     {
@@ -387,6 +391,10 @@ public class Assistant {
             let queryParameter = URLQueryItem(name: "include_audit", value: "\(includeAudit)")
             queryParameters.append(queryParameter)
         }
+        if let sort = sort {
+            let queryParameter = URLQueryItem(name: "sort", value: sort)
+            queryParameters.append(queryParameter)
+        }
 
         // construct REST request
         let path = "/v1/workspaces/\(workspaceID)"

Tests/AssistantV1Tests/AssistantV1UnitTests.swift

@@ -215,6 +215,7 @@ class AssistantV1UnitTests: XCTestCase {
             XCTAssertTrue(request.url?.query?.contains("version=\(versionDate)") ?? false)
             XCTAssertTrue(request.url?.query?.contains("export=true") ?? false)
             XCTAssertTrue(request.url?.query?.contains("include_audit=true") ?? false)
+            XCTAssertTrue(request.url?.query?.contains("sort=stable") ?? false)
 
             return (dummyResponse, Data())
         }
@@ -223,7 +224,8 @@ class AssistantV1UnitTests: XCTestCase {
         assistant.getWorkspace(
             workspaceID: self.workspaceID,
             export: true,
-            includeAudit: true) {
+            includeAudit: true,
+            sort: "stable") {
                 _, _ in
                 expectation.fulfill()
         }