test(Misc): Add test coverage to the JsonBlueprintDenormalizer

tests/src/Unit/Normalizer/JsonBlueprintDenormalizerTest.php

+<?php
+
+namespace Drupal\Tests\subrequests\Normalizer;
+
+use Drupal\subrequests\Normalizer\JsonBlueprintDenormalizer;
+use Drupal\subrequests\Subrequest;
+use Drupal\subrequests\SubrequestsTree;
+use Drupal\Tests\UnitTestCase;
+use Psr\Log\LoggerInterface;
+
+/**
+ * @coversDefaultClass \Drupal\subrequests\Normalizer\JsonBlueprintDenormalizer
+ * @group subrequests
+ */
+class JsonBlueprintDenormalizerTest extends UnitTestCase {
+
+  /**
+   * @var \Drupal\subrequests\Normalizer\JsonBlueprintDenormalizer
+   */
+  protected $sut;
+
+  protected function setUp() {
+    parent::setUp();
+    $logger = $this->prophesize(LoggerInterface::class);
+    $this->sut = new JsonBlueprintDenormalizer($logger->reveal());
+  }
+
+  /**
+   * @dataProvider dataProviderSupportsNormalization
+   * @covers ::supportsDenormalization
+   */
+  public function testSupportsDenormalization($data, $type, $format, $is_supported) {
+    $actual = $this->sut->supportsDenormalization($data, $type, $format);
+    $this->assertSame($is_supported, $actual);
+  }
+
+  public function dataProviderSupportsNormalization() {
+    return [
+      [['a', 'b'], SubrequestsTree::class, 'json', TRUE],
+      ['fail', SubrequestsTree::class, 'json', FALSE],
+      [['a', 'b'], SubrequestsTree::class, 'fail', FALSE],
+      [['fail' => 'a', 'b'], SubrequestsTree::class, 'json', FALSE],
+    ];
+  }
+
+  public function testDenormalize() {
+    $subrequests[] = [
+      'uri' => 'lorem',
+      'action' => 'view',
+      'requestId' => 'foo',
+      'body' => '"bar"',
+      'headers' => [],
+    ];
+    $subrequests[] = [
+      'uri' => 'ipsum',
+      'action' => 'sing',
+      'requestId' => 'oop',
+      'body' => '[]',
+      'waitFor' => 'foo',
+    ];
+    $subrequests[] = [
+      'uri' => 'lorem',
+      'action' => 'create',
+      'requestId' => 'oof',
+      'body' => '"bar"',
+      'waitFor' => 'foo',
+    ];
+    $actual = $this->sut->denormalize($subrequests, SubrequestsTree::class, 'json', []);
+    $tree = new SubrequestsTree();
+    $tree->stack([new Subrequest(['waitFor' => '<ROOT>', '_resolved' => FALSE, 'body' => 'bar'] + $subrequests[0])]);
+    $tree->stack([
+      new Subrequest(['headers' => [], '_resolved' => FALSE, 'body' => []] + $subrequests[1]),
+      new Subrequest(['headers' => [], '_resolved' => FALSE, 'body' => 'bar'] + $subrequests[2])
+    ]);
+    $this->assertEquals($tree, $actual);
+  }
+
+}