Fix TypeError when Response.getContent() returns null in Taskrouter Context classes

src/Twilio/Rest/Taskrouter/V1/Workspace/ActivityContext.php

@@ -81,7 +81,7 @@ public function fetch(): ActivityInstance
 
         return new ActivityInstance(
             $this->version,
-            $payload,
+            $payload ?? [],
             $this->solution['workspaceSid'],
             $this->solution['sid']
         );
@@ -110,7 +110,7 @@ public function update(array $options = []): ActivityInstance
 
         return new ActivityInstance(
             $this->version,
-            $payload,
+            $payload ?? [],
             $this->solution['workspaceSid'],
             $this->solution['sid']
         );

src/Twilio/Rest/Taskrouter/V1/Workspace/TaskContext.php

@@ -93,7 +93,7 @@ public function fetch(): TaskInstance
 
         return new TaskInstance(
             $this->version,
-            $payload,
+            $payload ?? [],
             $this->solution['workspaceSid'],
             $this->solution['sid']
         );
@@ -132,7 +132,7 @@ public function update(array $options = []): TaskInstance
 
         return new TaskInstance(
             $this->version,
-            $payload,
+            $payload ?? [],
             $this->solution['workspaceSid'],
             $this->solution['sid']
         );

src/Twilio/Rest/Taskrouter/V1/Workspace/TaskQueueContext.php

@@ -97,7 +97,7 @@ public function fetch(): TaskQueueInstance
 
         return new TaskQueueInstance(
             $this->version,
-            $payload,
+            $payload ?? [],
             $this->solution['workspaceSid'],
             $this->solution['sid']
         );
@@ -136,7 +136,7 @@ public function update(array $options = []): TaskQueueInstance
 
         return new TaskQueueInstance(
             $this->version,
-            $payload,
+            $payload ?? [],
             $this->solution['workspaceSid'],
             $this->solution['sid']
         );

src/Twilio/Rest/Taskrouter/V1/Workspace/WorkerContext.php

@@ -109,7 +109,7 @@ public function fetch(): WorkerInstance
 
         return new WorkerInstance(
             $this->version,
-            $payload,
+            $payload ?? [],
             $this->solution['workspaceSid'],
             $this->solution['sid']
         );
@@ -144,7 +144,7 @@ public function update(array $options = []): WorkerInstance
 
         return new WorkerInstance(
             $this->version,
-            $payload,
+            $payload ?? [],
             $this->solution['workspaceSid'],
             $this->solution['sid']
         );

src/Twilio/Rest/Taskrouter/V1/Workspace/WorkflowContext.php

@@ -97,7 +97,7 @@ public function fetch(): WorkflowInstance
 
         return new WorkflowInstance(
             $this->version,
-            $payload,
+            $payload ?? [],
             $this->solution['workspaceSid'],
             $this->solution['sid']
         );
@@ -136,7 +136,7 @@ public function update(array $options = []): WorkflowInstance
 
         return new WorkflowInstance(
             $this->version,
-            $payload,
+            $payload ?? [],
             $this->solution['workspaceSid'],
             $this->solution['sid']
         );

tests/Twilio/Unit/Rest/Taskrouter/V1/Workspace/TaskContextTest.php

@@ -0,0 +1,52 @@
+<?php
+
+namespace Twilio\Tests\Unit\Rest\Taskrouter\V1\Workspace;
+
+use Twilio\Exceptions\TwilioException;
+use Twilio\Http\Response;
+use Twilio\Rest\Taskrouter\V1\Workspace\TaskInstance;
+use Twilio\Tests\HolodeckTestCase;
+use Twilio\Tests\Request;
+
+class TaskContextTest extends HolodeckTestCase {
+
+    public function testFetchWithNullPayload(): void {
+        $this->holodeck->mock(new Response(200, null, []));
+
+        $actual = $this->twilio->taskrouter->v1->workspaces("WSXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX")
+                                             ->tasks("WTXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX")
+                                             ->fetch();
+
+        $this->assertInstanceOf(TaskInstance::class, $actual);
+    }
+
+    public function testUpdateWithNullPayload(): void {
+        $this->holodeck->mock(new Response(200, null, []));
+
+        $actual = $this->twilio->taskrouter->v1->workspaces("WSXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX")
+                                             ->tasks("WTXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX")
+                                             ->update(['attributes' => 'test']);
+
+        $this->assertInstanceOf(TaskInstance::class, $actual);
+    }
+
+    public function testFetchWithInvalidJsonPayload(): void {
+        $this->holodeck->mock(new Response(200, 'invalid json', []));
+
+        $actual = $this->twilio->taskrouter->v1->workspaces("WSXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX")
+                                             ->tasks("WTXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX")
+                                             ->fetch();
+
+        $this->assertInstanceOf(TaskInstance::class, $actual);
+    }
+
+    public function testUpdateWithInvalidJsonPayload(): void {
+        $this->holodeck->mock(new Response(200, 'invalid json', []));
+
+        $actual = $this->twilio->taskrouter->v1->workspaces("WSXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX")
+                                             ->tasks("WTXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX")
+                                             ->update(['attributes' => 'test']);
+
+        $this->assertInstanceOf(TaskInstance::class, $actual);
+    }
+}