FIX: ClassManifest errors if files contain duplicate class names (fixes

#3210)

core/manifest/ClassManifest.php

@@ -391,14 +391,15 @@ public function handleFile($basename, $pathname, $depth) {
 				$extends = substr($extends, 1);
 			}
 
-			if (array_key_exists($name, $this->classes)) {
+			$lowercaseName = strtolower($name);
+			if (array_key_exists($lowercaseName, $this->classes)) {
 				throw new Exception(sprintf(
 					'There are two files containing the "%s" class: "%s" and "%s"',
-					$name, $this->classes[$name], $pathname
+					$name, $this->classes[$lowercaseName], $pathname
 				));
 			}
 
-			$this->classes[strtolower($name)] = $pathname;
+			$this->classes[$lowercaseName] = $pathname;
 
 			if ($extends) {
 				$extends = strtolower($extends);

tests/core/manifest/ClassManifestTest.php

@@ -126,4 +126,14 @@ public function testTestManifestIncludesTestClasses() {
 	public function testManifestExcludeFilesPrefixedWithUnderscore() {
 		$this->assertNotContains('ignore', array_keys($this->manifest->getClasses()));
 	}
+
+	/**
+	 * Assert that ClassManifest throws an exception when it encounters two files
+	 * which contain classes with the same name
+	 * @expectedException Exception
+	 */
+	public function testManifestWarnsAboutDuplicateClasses() {
+		$dummy = new SS_ClassManifest(dirname(__FILE__) . '/fixtures/classmanifest_duplicates', false, true, false);
+	}
+
 }

tests/core/manifest/fixtures/classmanifest_duplicates/module/classes/TestClassA.php

@@ -0,0 +1,5 @@
+<?php
+/**
+ * @ignore
+ */
+class TESTClass {  }

tests/core/manifest/fixtures/classmanifest_duplicates/module/classes/TestClassB.php

@@ -0,0 +1,5 @@
+<?php
+/**
+ * @ignore
+ */
+class testCLASS {  }