Tests: Use assertSame() in REST API schema sanitization tests.

This ensures that not only the return values match the expected results, but also that their type is the same.

Going forward, stricter type checking by using `assertSame()` should generally be preferred to `assertEquals()` where appropriate, to make the tests more reliable.

Follow-up to [39061], [48937].

See #62278.

git-svn-id: https://develop.svn.wordpress.org/trunk@60067 602fd350-edb4-49c9-b593-d223f7449a82

Author: SergeyBiryukov

tests/phpunit/tests/rest-api/rest-schema-sanitization.php

@@ -13,11 +13,11 @@ public function test_type_number() {
 		$schema = array(
 			'type' => 'number',
 		);
-		$this->assertEquals( 1, rest_sanitize_value_from_schema( 1, $schema ) );
+		$this->assertSame( 1.0, rest_sanitize_value_from_schema( 1, $schema ) );
 		$this->assertSame( 1.10, rest_sanitize_value_from_schema( '1.10', $schema ) );
-		$this->assertEquals( 1, rest_sanitize_value_from_schema( '1abc', $schema ) );
-		$this->assertEquals( 0, rest_sanitize_value_from_schema( 'abc', $schema ) );
-		$this->assertEquals( 0, rest_sanitize_value_from_schema( array(), $schema ) );
+		$this->assertSame( 1.0, rest_sanitize_value_from_schema( '1abc', $schema ) );
+		$this->assertSame( 0.0, rest_sanitize_value_from_schema( 'abc', $schema ) );
+		$this->assertSame( 0.0, rest_sanitize_value_from_schema( array(), $schema ) );
 	}
 
 	public function test_type_integer() {