diff --git a/WordPress/Tests/Classes/ClassInstantiationUnitTest.2.inc b/WordPress/Tests/Classes/ClassInstantiationUnitTest.2.inc
deleted file mode 100644
index 7b3038a5b6..0000000000
--- a/WordPress/Tests/Classes/ClassInstantiationUnitTest.2.inc
+++ /dev/null
@@ -1,17 +0,0 @@
-<?php
-/**
- * Test cases which can't be tested on PHP 5.2.
- */
-
-/*
- * All OK.
- */
-$a = new \MyClass();
-$a = new \MyNamespace\MyClass();
-
-
-/*
- * Bad.
- */
-$a = new \MyClass;
-$a = new \MyNamespace\MyClass;
diff --git a/WordPress/Tests/Classes/ClassInstantiationUnitTest.2.inc.fixed b/WordPress/Tests/Classes/ClassInstantiationUnitTest.2.inc.fixed
deleted file mode 100644
index 5a8fc6b267..0000000000
--- a/WordPress/Tests/Classes/ClassInstantiationUnitTest.2.inc.fixed
+++ /dev/null
@@ -1,17 +0,0 @@
-<?php
-/**
- * Test cases which can't be tested on PHP 5.2.
- */
-
-/*
- * All OK.
- */
-$a = new \MyClass();
-$a = new \MyNamespace\MyClass();
-
-
-/*
- * Bad.
- */
-$a = new \MyClass();
-$a = new \MyNamespace\MyClass();
diff --git a/WordPress/Tests/Classes/ClassInstantiationUnitTest.1.inc b/WordPress/Tests/Classes/ClassInstantiationUnitTest.inc
similarity index 92%
rename from WordPress/Tests/Classes/ClassInstantiationUnitTest.1.inc
rename to WordPress/Tests/Classes/ClassInstantiationUnitTest.inc
index a0e7e751b7..c04b9a45da 100644
--- a/WordPress/Tests/Classes/ClassInstantiationUnitTest.1.inc
+++ b/WordPress/Tests/Classes/ClassInstantiationUnitTest.inc
@@ -88,3 +88,11 @@ $b = & new Foobar();
 // Currently not accounted for by the sniff, i.e. false negatives.
 $a = new $$varHoldingClassName;
 $a = new ${$varHoldingClassName};
+
+// Namespaced classes: OK.
+$a = new \MyClass();
+$a = new \MyNamespace\MyClass();
+
+// Namespaced classes: Bad.
+$a = new \MyClass;
+$a = new \MyNamespace\MyClass;
diff --git a/WordPress/Tests/Classes/ClassInstantiationUnitTest.1.inc.fixed b/WordPress/Tests/Classes/ClassInstantiationUnitTest.inc.fixed
similarity index 92%
rename from WordPress/Tests/Classes/ClassInstantiationUnitTest.1.inc.fixed
rename to WordPress/Tests/Classes/ClassInstantiationUnitTest.inc.fixed
index f7bf26b261..75167379f2 100644
--- a/WordPress/Tests/Classes/ClassInstantiationUnitTest.1.inc.fixed
+++ b/WordPress/Tests/Classes/ClassInstantiationUnitTest.inc.fixed
@@ -88,3 +88,11 @@ $b = & new Foobar();
 // Currently not accounted for by the sniff, i.e. false negatives.
 $a = new $$varHoldingClassName;
 $a = new ${$varHoldingClassName};
+
+// Namespaced classes: OK.
+$a = new \MyClass();
+$a = new \MyNamespace\MyClass();
+
+// Namespaced classes: Bad.
+$a = new \MyClass();
+$a = new \MyNamespace\MyClass();
diff --git a/WordPress/Tests/Classes/ClassInstantiationUnitTest.php b/WordPress/Tests/Classes/ClassInstantiationUnitTest.php
index 1be3849230..48c6d50ff3 100644
--- a/WordPress/Tests/Classes/ClassInstantiationUnitTest.php
+++ b/WordPress/Tests/Classes/ClassInstantiationUnitTest.php
@@ -21,23 +21,6 @@
  */
 class ClassInstantiationUnitTest extends AbstractSniffUnitTest {
 
-	/**
-	 * Get a list of all test files to check.
-	 *
-	 * @param string $testFileBase The base path that the unit tests files will have.
-	 *
-	 * @return string[]
-	 */
-	protected function getTestFiles( $testFileBase ) {
-		$testFiles = parent::getTestFiles( $testFileBase );
-
-		if ( PHP_VERSION_ID < 50300 ) {
-			$testFiles = array_diff( $testFiles, array( $testFileBase . '2.inc' ) );
-		}
-
-		return $testFiles;
-	}
-
 	/**
 	 * Returns the lines where errors should occur.
 	 *
@@ -47,7 +30,7 @@ protected function getTestFiles( $testFileBase ) {
 	public function getErrorList( $testFile = '' ) {
 
 		switch ( $testFile ) {
-			case 'ClassInstantiationUnitTest.1.inc':
+			case 'ClassInstantiationUnitTest.inc':
 				return array(
 					37 => 1,
 					38 => 1,
@@ -70,12 +53,8 @@ public function getErrorList( $testFile = '' ) {
 					80 => 1,
 					84 => 1,
 					85 => 1,
-				);
-
-			case 'ClassInstantiationUnitTest.2.inc':
-				return array(
-					16 => 1,
-					17 => 1,
+					97 => 1,
+					98 => 1,
 				);
 
 			case 'ClassInstantiationUnitTest.js':
diff --git a/WordPress/Tests/DB/RestrictedClassesUnitTest.php b/WordPress/Tests/DB/RestrictedClassesUnitTest.php
index 75e2234125..4bf68b6c75 100644
--- a/WordPress/Tests/DB/RestrictedClassesUnitTest.php
+++ b/WordPress/Tests/DB/RestrictedClassesUnitTest.php
@@ -52,15 +52,6 @@ protected function tearDown() {
 		parent::tearDown();
 	}
 
-	/**
-	 * Skip this test on PHP 5.2 as otherwise testing the namespace resolving would fail.
-	 *
-	 * @return bool Whether to skip this test.
-	 */
-	protected function shouldSkipTest() {
-		return ( PHP_VERSION_ID < 50300 );
-	}
-
 	/**
 	 * Returns the lines where errors should occur.
 	 *
diff --git a/WordPress/Tests/Files/FileNameUnitTest.php b/WordPress/Tests/Files/FileNameUnitTest.php
index edd38737cb..85a1f87aa2 100644
--- a/WordPress/Tests/Files/FileNameUnitTest.php
+++ b/WordPress/Tests/Files/FileNameUnitTest.php
@@ -97,11 +97,6 @@ protected function getTestFiles( $testFileBase ) {
 		$sep        = DIRECTORY_SEPARATOR;
 		$test_files = glob( dirname( $testFileBase ) . $sep . 'FileNameUnitTests{' . $sep . ',' . $sep . '*' . $sep . '}*.inc', GLOB_BRACE );
 
-		// Adjust the expected results array for PHP 5.2 as PHP 5.2 does not recognize namespaces.
-		if ( PHP_VERSION_ID < 50300 ) {
-			$this->expected_results['test-sample-phpunit6.inc'] = 1;
-		}
-
 		if ( ! empty( $test_files ) ) {
 			return $test_files;
 		}
diff --git a/WordPress/Tests/NamingConventions/PrefixAllGlobalsUnitTest.php b/WordPress/Tests/NamingConventions/PrefixAllGlobalsUnitTest.php
index 352f333ab4..108471574b 100644
--- a/WordPress/Tests/NamingConventions/PrefixAllGlobalsUnitTest.php
+++ b/WordPress/Tests/NamingConventions/PrefixAllGlobalsUnitTest.php
@@ -52,12 +52,6 @@ public function getErrorList( $testFile = 'PrefixAllGlobalsUnitTest.inc' ) {
 					40  => 1,
 					90  => 1,
 					91  => 1,
-					// Scoped.
-					149 => ( PHP_VERSION_ID >= 50300 ) ? 0 : 1, // PHPCS on PHP 5.2 does not recognize namespaces.
-					151 => ( PHP_VERSION_ID >= 50300 ) ? 0 : 1, // PHPCS on PHP 5.2 does not recognize namespaces.
-					153 => ( PHP_VERSION_ID >= 50300 ) ? 0 : 1, // PHPCS on PHP 5.2 does not recognize namespaces.
-					154 => ( PHP_VERSION_ID >= 50300 ) ? 0 : 1, // PHPCS on PHP 5.2 does not recognize namespaces.
-					155 => ( PHP_VERSION_ID >= 50300 ) ? 0 : 1, // PHPCS on PHP 5.2 does not recognize namespaces.
 					// Backfills.
 					225 => ( function_exists( '\mb_strpos' ) ) ? 0 : 1,
 					230 => ( function_exists( '\array_column' ) ) ? 0 : 1,
@@ -66,20 +60,7 @@ public function getErrorList( $testFile = 'PrefixAllGlobalsUnitTest.inc' ) {
 				);
 
 			case 'PrefixAllGlobalsUnitTest.1.inc':
-				// Namespaced - all OK.
-				if ( PHP_VERSION_ID >= 50300 ) {
-					return array();
-				}
-
-				// PHPCS on PHP 5.2 does not recognize namespaces.
-				return array(
-					9  => 1,
-					11 => 1,
-					13 => 1,
-					14 => 1,
-					15 => 1,
-				);
-
+				// Namespaced - all OK, fall through to the default case.
 			default:
 				return array();
 
diff --git a/WordPress/Tests/VIP/AdminBarRemovalUnitTest.php b/WordPress/Tests/VIP/AdminBarRemovalUnitTest.php
index 3e07aa6333..7adbae60df 100644
--- a/WordPress/Tests/VIP/AdminBarRemovalUnitTest.php
+++ b/WordPress/Tests/VIP/AdminBarRemovalUnitTest.php
@@ -43,9 +43,9 @@ public function getErrorList( $testFile = '' ) {
 					21  => 1,
 					26  => 1,
 					32  => 1,
-					56  => ( PHP_VERSION_ID >= 50300 ) ? 1 : 0, // PHPCS on PHP 5.2 does not recognize T_NOWDOC.
-					57  => ( PHP_VERSION_ID >= 50300 ) ? 1 : 0, // PHPCS on PHP 5.2 does not recognize T_NOWDOC.
-					58  => ( PHP_VERSION_ID >= 50300 ) ? 1 : 0, // PHPCS on PHP 5.2 does not recognize T_NOWDOC.
+					56  => 1,
+					57  => 1,
+					58  => 1,
 					68  => 1,
 					69  => 1,
 					70  => 1,
@@ -60,7 +60,7 @@ public function getErrorList( $testFile = '' ) {
 
 			case 'AdminBarRemovalUnitTest.css':
 				return array(
-					15  => 1,
+					15 => 1,
 					16 => 1,
 					17 => 1,
 					22 => 1,
diff --git a/WordPress/Tests/VIP/DirectDatabaseQueryUnitTest.php b/WordPress/Tests/VIP/DirectDatabaseQueryUnitTest.php
index 0a45e1177e..41a8d786d2 100644
--- a/WordPress/Tests/VIP/DirectDatabaseQueryUnitTest.php
+++ b/WordPress/Tests/VIP/DirectDatabaseQueryUnitTest.php
@@ -41,7 +41,7 @@ public function getErrorList() {
 			190 => 1,
 			250 => 1,
 			257 => 1,
-			274 => ( PHP_VERSION_ID >= 50300 ) ? 1 : 0, // PHPCS on PHP 5.2 does not recognize T_NOWDOC.
+			274 => 1,
 		);
 
 	}
diff --git a/WordPress/Tests/VIP/PluginMenuSlugUnitTest.php b/WordPress/Tests/VIP/PluginMenuSlugUnitTest.php
index e8b142712f..5a8307c2ce 100644
--- a/WordPress/Tests/VIP/PluginMenuSlugUnitTest.php
+++ b/WordPress/Tests/VIP/PluginMenuSlugUnitTest.php
@@ -28,10 +28,9 @@ class PluginMenuSlugUnitTest extends AbstractSniffUnitTest {
 	 */
 	public function getErrorList() {
 		return array(
-			3  => 1,
-			5  => 1,
-			9  => 2,
-			14 => ( PHP_VERSION_ID < 50300 ) ? 1 : 0, // PHPCS on PHP 5.2 does not recognize T_NS_SEPARATOR.
+			3 => 1,
+			5 => 1,
+			9 => 2,
 		);
 
 	}
diff --git a/WordPress/Tests/VIP/RestrictedFunctionsUnitTest.php b/WordPress/Tests/VIP/RestrictedFunctionsUnitTest.php
index 33d09b3f71..341e85e9e0 100644
--- a/WordPress/Tests/VIP/RestrictedFunctionsUnitTest.php
+++ b/WordPress/Tests/VIP/RestrictedFunctionsUnitTest.php
@@ -30,7 +30,6 @@ public function getErrorList() {
 		return array(
 			3  => 1,
 			17 => 1,
-			30 => ( PHP_VERSION_ID >= 50300 ) ? 0 : 1,
 			32 => 1,
 			34 => 1,
 			36 => 1,
diff --git a/WordPress/Tests/WP/CapitalPDangitUnitTest.1.inc b/WordPress/Tests/WP/CapitalPDangitUnitTest.1.inc
deleted file mode 100644
index 62e82673db..0000000000
--- a/WordPress/Tests/WP/CapitalPDangitUnitTest.1.inc
+++ /dev/null
@@ -1,10 +0,0 @@
-<?php
-
-/*
- * Test Nowdoc separately as the fixer breaks on this in PHP 5.2.
- */
-
-// Bad.
-$text = <<<'EOD'
-This is an explanation about word-press.
-EOD;
diff --git a/WordPress/Tests/WP/CapitalPDangitUnitTest.inc b/WordPress/Tests/WP/CapitalPDangitUnitTest.inc
index 821530a676..4e0c6df8b9 100644
--- a/WordPress/Tests/WP/CapitalPDangitUnitTest.inc
+++ b/WordPress/Tests/WP/CapitalPDangitUnitTest.inc
@@ -174,3 +174,9 @@ echo 'This is an explanation about wordpress.'; // WPCS: spelling ok.
 
 <?php // POT filename should be ignored. ?>
 wordpress.pot
+
+<?php
+// Bad.
+$text = <<<'EOD'
+This is an explanation about word-press.
+EOD;
diff --git a/WordPress/Tests/WP/CapitalPDangitUnitTest.inc.fixed b/WordPress/Tests/WP/CapitalPDangitUnitTest.inc.fixed
index a7d59e918f..c1accc1cbf 100644
--- a/WordPress/Tests/WP/CapitalPDangitUnitTest.inc.fixed
+++ b/WordPress/Tests/WP/CapitalPDangitUnitTest.inc.fixed
@@ -174,3 +174,9 @@ echo 'This is an explanation about wordpress.'; // WPCS: spelling ok.
 
 <?php // POT filename should be ignored. ?>
 wordpress.pot
+
+<?php
+// Bad.
+$text = <<<'EOD'
+This is an explanation about WordPress.
+EOD;
diff --git a/WordPress/Tests/WP/CapitalPDangitUnitTest.php b/WordPress/Tests/WP/CapitalPDangitUnitTest.php
index d0bd6ac35c..dc5c651a1e 100644
--- a/WordPress/Tests/WP/CapitalPDangitUnitTest.php
+++ b/WordPress/Tests/WP/CapitalPDangitUnitTest.php
@@ -34,47 +34,36 @@ public function getErrorList() {
 	/**
 	 * Returns the lines where warnings should occur.
 	 *
-	 * @param string $testFile The name of the file being tested.
 	 * @return array <int line number> => <int number of warnings>
 	 */
-	public function getWarningList( $testFile = 'CapitalPDangitUnitTest.inc' ) {
+	public function getWarningList() {
 
-		switch ( $testFile ) {
-			case 'CapitalPDangitUnitTest.inc':
-				return array(
-					3   => 1,
-					5   => 1,
-					8   => 1,
-					26  => 1,
-					28  => 1,
-					34  => 1,
-					35  => 1,
-					36  => 1,
-					40  => 1,
-					41  => 1,
-					45  => 1,
-					53  => 1,
-					60  => 1,
-					61  => 1,
-					62  => 1,
-					65  => 1,
-					66  => 1,
-					68  => ( PHP_VERSION_ID >= 50300 ) ? 1 : 2, // PHPCS on PHP 5.2 apparently breaks the token up into two tokens.
-					101 => 1,
-					139 => 1,
-					146 => 0, // False negative.
-					173 => 1,
-				);
+		return array(
+			3   => 1,
+			5   => 1,
+			8   => 1,
+			26  => 1,
+			28  => 1,
+			34  => 1,
+			35  => 1,
+			36  => 1,
+			40  => 1,
+			41  => 1,
+			45  => 1,
+			53  => 1,
+			60  => 1,
+			61  => 1,
+			62  => 1,
+			65  => 1,
+			66  => 1,
+			68  => 1,
+			101 => 1,
+			139 => 1,
+			146 => 0, // False negative.
+			173 => 1,
+			181 => 1,
+		);
 
-			case 'CapitalPDangitUnitTest.1.inc':
-				return array(
-					9 => ( PHP_VERSION_ID >= 50300 ) ? 1 : 0, // PHPCS on PHP 5.2 does not recognize nowdocs.
-				);
-
-			default:
-				return array();
-
-		} // End switch().
 	}
 
 } // End class.
diff --git a/WordPress/Tests/WP/EnqueuedResourcesUnitTest.php b/WordPress/Tests/WP/EnqueuedResourcesUnitTest.php
index d36bb6aafd..dd19200ca5 100644
--- a/WordPress/Tests/WP/EnqueuedResourcesUnitTest.php
+++ b/WordPress/Tests/WP/EnqueuedResourcesUnitTest.php
@@ -29,9 +29,9 @@ class EnqueuedResourcesUnitTest extends AbstractSniffUnitTest {
 	public function getErrorList() {
 		return array(
 			1 => 1,
-			2 => ( PHP_VERSION_ID >= 50300 ) ? 1 : 0, // PHPCS on PHP 5.2 has a bug tokenizing inline HTML / `<s`.
+			2 => 1,
 			6 => 1,
-			7 => ( PHP_VERSION_ID >= 50300 ) ? 1 : 0, // PHPCS on PHP 5.2 has a bug tokenizing inline HTML / `<s`.
+			7 => 1,
 			10 => 1,
 			11 => 1,
 			13 => 1,
@@ -40,10 +40,10 @@ public function getErrorList() {
 			17 => 1,
 			20 => 1,
 			21 => 1,
-			25 => ( PHP_VERSION_ID >= 50300 ) ? 1 : 0, // PHPCS on PHP 5.2 does not recognize double quoted T_HEREDOC.
-			26 => ( PHP_VERSION_ID >= 50300 ) ? 1 : 0, // PHPCS on PHP 5.2 does not recognize double quoted T_HEREDOC.
-			30 => 1, // PHPCS on PHP 5.2 does not recognize T_NOWDOC, but sees this as a literal string anyway.
-			31 => ( PHP_VERSION_ID >= 50300 ) ? 1 : 0, // PHPCS on PHP 5.2 does not recognize T_NOWDOC.
+			25 => 1,
+			26 => 1,
+			30 => 1,
+			31 => 1,
 		);
 
 	}
diff --git a/WordPress/Tests/WP/I18nUnitTest.php b/WordPress/Tests/WP/I18nUnitTest.php
index 7a44bebd69..0083094b60 100644
--- a/WordPress/Tests/WP/I18nUnitTest.php
+++ b/WordPress/Tests/WP/I18nUnitTest.php
@@ -106,7 +106,7 @@ public function getErrorList( $testFile = 'I18nUnitTest.inc' ) {
 					125 => 1,
 					128 => 1,
 					129 => 1,
-					132 => ( PHP_VERSION_ID >= 50300 ) ? 1 : 2, // PHPCS on PHP 5.2 does not recognize T_NOWDOC.
+					132 => 1,
 					138 => 1,
 					143 => 1,
 					148 => 1,
diff --git a/WordPress/Tests/WP/PreparedSQLUnitTest.php b/WordPress/Tests/WP/PreparedSQLUnitTest.php
index 2b06196616..bccc30f1bb 100644
--- a/WordPress/Tests/WP/PreparedSQLUnitTest.php
+++ b/WordPress/Tests/WP/PreparedSQLUnitTest.php
@@ -29,7 +29,7 @@ class PreparedSQLUnitTest extends AbstractSniffUnitTest {
 	 * @return array <int line number> => <int number of errors>
 	 */
 	public function getErrorList() {
-		$errors = array(
+		return array(
 			3 => 1,
 			4 => 1,
 			5 => 1,
@@ -44,23 +44,6 @@ public function getErrorList() {
 			64 => 1,
 			71 => 1,
 		);
-
-		// Deal with PHP 5.2 not recognizing quoted heredoc openers, nor nowdoc syntax.
-		// These are all false positives!
-		if ( PHP_VERSION_ID < 50300 ) {
-			$errors[68] = 2;
-			$errors[69] = 2;
-			$errors[70] = 2;
-			$errors[71] = 4;
-			$errors[75] = 2;
-			$errors[76] = 7;
-			$errors[77] = 4;
-			$errors[78] = 5;
-			$errors[79] = 7;
-			$errors[80] = 1;
-		}
-
-		return $errors;
 	}
 
 	/**
diff --git a/WordPress/Tests/WhiteSpace/ControlStructureSpacingUnitTest.php b/WordPress/Tests/WhiteSpace/ControlStructureSpacingUnitTest.php
index 7c63a07c40..642f69c436 100644
--- a/WordPress/Tests/WhiteSpace/ControlStructureSpacingUnitTest.php
+++ b/WordPress/Tests/WhiteSpace/ControlStructureSpacingUnitTest.php
@@ -21,17 +21,6 @@
  */
 class ControlStructureSpacingUnitTest extends AbstractSniffUnitTest {
 
-	/**
-	 * Skip this test on PHP 5.2.
-	 *
-	 * @since 0.9.0
-	 *
-	 * @return bool Whether to skip this test.
-	 */
-	protected function shouldSkipTest() {
-		return ( PHP_VERSION_ID < 50300 );
-	}
-
 	/**
 	 * Returns the lines where errors should occur.
 	 *
diff --git a/WordPress/Tests/XSS/EscapeOutputUnitTest.php b/WordPress/Tests/XSS/EscapeOutputUnitTest.php
index b5560247fe..0be554aab4 100644
--- a/WordPress/Tests/XSS/EscapeOutputUnitTest.php
+++ b/WordPress/Tests/XSS/EscapeOutputUnitTest.php
@@ -69,7 +69,6 @@ public function getErrorList() {
 			205 => 1,
 			206 => 1,
 			207 => 1,
-			212 => ( PHP_VERSION_ID < 50300 ) ? 1 : 0, // PHPCS on PHP 5.2 does not recognize T_NOWDOC.
 			223 => 1,
 			225 => 1,
 			226 => 1,