Tests: Improve wp_timezone_override_offset() unit tests.

Includes:
* Using a data provider to reduce code repetition.
* Correcting the `group` annotation.

Follow-up to [59931].

See #59980.

git-svn-id: https://develop.svn.wordpress.org/trunk@59936 602fd350-edb4-49c9-b593-d223f7449a82

Author: SergeyBiryukov

tests/phpunit/tests/functions/wpTimezoneOverrideOffset.php

@@ -1,53 +1,39 @@
 <?php
 
 /**
- * Tests for the wp_timezone_override_offset function.
+ * Tests for the wp_timezone_override_offset() function.
  *
- * @group Functions.php
+ * @group functions
  *
  * @covers ::wp_timezone_override_offset
  */
 class Tests_Functions_wpTimezoneOverrideOffset extends WP_UnitTestCase {
-	/**
-	 * @ticket 59980
-	 */
-	public function test_wp_timezone_override_offset_with_no_timezone_string_option_set() {
-		$this->assertSame( '', get_option( 'timezone_string' ) );
-		$this->assertFalse( wp_timezone_override_offset() );
-	}
 
 	/**
 	 * @ticket 59980
+	 *
+	 * @dataProvider data_wp_timezone_override_offset
 	 */
-	public function test_wp_timezone_override_offset_with_bad_option_set() {
-		update_option( 'timezone_string', 'BAD_TIME_ZONE' );
-		$this->assertFalse( wp_timezone_override_offset() );
+	public function test_wp_timezone_override_offset( $timezone_string, $expected ) {
+		update_option( 'timezone_string', $timezone_string );
+		$this->assertSame( $expected, wp_timezone_override_offset() );
 	}
 
 	/**
-	 * @ticket 59980
-	 */
-	public function test_wp_timezone_override_offset_with_UTC_option_set() {
-		update_option( 'timezone_string', 'UTC' );
-		$offset = wp_timezone_override_offset();
-		$this->assertSame( 0.0, $offset );
-	}
-
-	/**
-	 * @ticket 59980
-	 */
-	public function test_wp_timezone_override_offset_with_EST_option_set() {
-		update_option( 'timezone_string', 'EST' );
-		$offset = wp_timezone_override_offset();
-		$this->assertSame( -5.0, $offset );
-	}
-
-	/**
-	 * @ticket 59980
+	 * Data provider.
+	 *
+	 * @return array[] Test parameters {
+	 *     @type string $timezone_string Test value.
+	 *     @type string $expected        Expected return value.
+	 * }
 	 */
-	public function test_wp_timezone_override_offset_with_NST_option_set() {
-		update_option( 'timezone_string', 'America/St_Johns' );
-		$offset = wp_timezone_override_offset();
-		$this->assertSame( -3.5, $offset );
+	public function data_wp_timezone_override_offset() {
+		return array(
+			'no timezone string option set' => array( '', false ),
+			'bad option set'                => array( 'BAD_TIME_ZONE', false ),
+			'UTC option set'                => array( 'UTC', 0.0 ),
+			'EST option set'                => array( 'EST', -5.0 ),
+			'NST option set'                => array( 'America/St_Johns', -3.5 ),
+		);
 	}
 }