Add more test cases for code coverage

Author: devanych

tests/Response/PrepareJsonDataTraitTest.php

@@ -0,0 +1,75 @@
+<?php
+
+declare(strict_types=1);
+
+namespace HttpSoft\Tests\Basis\Response;
+
+use DateTime;
+use DateTimeZone;
+use HttpSoft\Basis\Response\PrepareJsonDataTrait;
+use JsonSerializable;
+use PHPUnit\Framework\TestCase;
+use stdClass;
+
+class PrepareJsonDataTraitTest extends TestCase
+{
+    use PrepareJsonDataTrait;
+
+    public function testPrepareScalarAndNull(): void
+    {
+        $this->assertSame(1, $this->prepareJsonData(1));
+        $this->assertSame(1.1, $this->prepareJsonData(1.1));
+        $this->assertSame(null, $this->prepareJsonData(null));
+        $this->assertSame(true, $this->prepareJsonData(true));
+        $this->assertSame(false, $this->prepareJsonData(false));
+        $this->assertSame('string', $this->prepareJsonData('string'));
+    }
+
+    public function testPrepareSimpleArray(): void
+    {
+        $this->assertSame([1, 2], $this->prepareJsonData([1, 2]));
+        $this->assertSame(['a' => 1, 'b' => 2], $this->prepareJsonData(['a' => 1, 'b' => 2]));
+    }
+
+    public function testPrepareSimpleObject(): void
+    {
+        $data = new stdClass();
+        $data->a = 1;
+        $data->b = 2;
+        $this->assertSame(['a' => 1, 'b' => 2], $this->prepareJsonData($data));
+    }
+
+    public function testPrepareEmpty(): void
+    {
+        $data = new stdClass();
+        $this->assertSame([], $this->prepareJsonData([]));
+        $this->assertEquals($data, $this->prepareJsonData($data));
+        $this->assertNotSame($data, $this->prepareJsonData($data));
+        $this->assertInstanceOf(stdClass::class, $this->prepareJsonData($data));
+    }
+
+    public function testPrepareJsonSerializable(): void
+    {
+        $this->assertSame(
+            ['a' => 1, 'b' => 'string'],
+            $this->prepareJsonData(new class () implements JsonSerializable {
+                public function jsonSerialize()
+                {
+                    return ['a' => 1, 'b' => 'string'];
+                }
+            }),
+        );
+    }
+
+    public function testPrepareDateTime(): void
+    {
+        $this->assertSame(
+            [
+                'date' => '2021-08-08 00:00:00.000000',
+                'timezone_type' => 3,
+                'timezone' => 'UTC',
+            ],
+            $this->prepareJsonData(new DateTime('August 8, 2021', new DateTimeZone('UTC'))),
+        );
+    }
+}