function YamlTest::testEnums

Tests that enums can be encoded and parsed.

File

core/tests/Drupal/Tests/Component/Serialization/YamlTest.php, line 120

Class

YamlTest

Tests the Yaml serialization implementation.

Namespace

Code

public function testEnums() : void {
  $data = [
    'foo' => EnumValue::Yes,
    'bar' => BackedEnumValue::Maybe,
  ];
  $yaml = Yaml::encode($data);
  $this->assertSame($yaml, <<<YAML
  foo: !php/enum Drupal\\Tests\\Component\\Serialization\\EnumValue::Yes
  bar: !php/enum Drupal\\Tests\\Component\\Serialization\\BackedEnumValue::Maybe
  
  YAML);
  // Test decoding of `!php/enum`-encoded enums.
  $decoded = Yaml::decode($yaml);
  $this->assertSame(EnumValue::Yes, $decoded['foo']);
  $this->assertSame(BackedEnumValue::Maybe, $decoded['bar']);
  // Test decoding of `!php/const`-encoded enums.
  $yaml_alternative = <<<YAML
  foo: !php/const Drupal\\Tests\\Component\\Serialization\\EnumValue::Yes
  bar: !php/const Drupal\\Tests\\Component\\Serialization\\BackedEnumValue::Maybe
  
  YAML;
  $decoded = Yaml::decode($yaml_alternative);
  $this->assertSame(EnumValue::Yes, $decoded['foo']);
  $this->assertSame(BackedEnumValue::Maybe, $decoded['bar']);
  // Test decoding of `!php/enum`-encoded arrow values.
  $yaml_alternative = <<<YAML
  bar: !php/enum Drupal\\Tests\\Component\\Serialization\\BackedEnumValue::Maybe->value
  
  YAML;
  $decoded = Yaml::decode($yaml_alternative);
  $this->assertSame(BackedEnumValue::Maybe->value, $decoded['bar']);
}