Fix MockCookie parsing when attribute is omitted

Issue: SPR-17321, #1974

spring-test/src/main/java/org/springframework/mock/web/MockCookie.java

@@ -80,7 +80,7 @@ public class MockCookie extends Cookie {
 		String name = cookieParts[0];
 		String[] valueAndDirectives = cookieParts[1].split("\\s*;\\s*", 2);
 		String value = valueAndDirectives[0];
-		String[] directives = valueAndDirectives[1].split("\\s*;\\s*");
+		String[] directives = valueAndDirectives.length > 1 ? valueAndDirectives[1].split("\\s*;\\s*") : new String[0];
 
 		MockCookie cookie = new MockCookie(name, value);
 		for (String directive : directives) {

spring-test/src/test/java/org/springframework/mock/web/MockHttpServletRequestTests.java

@@ -544,6 +544,29 @@ public class MockHttpServletRequestTests {
 		request.getDateHeader(HttpHeaders.IF_MODIFIED_SINCE);
 	}
 
+	@Test
+	public void testCookieParsing() {
+		MockCookie m = MockCookie.parse("foo=bar");
+		testCookie("foo", "bar", m);
+		m = MockCookie.parse("foo=bar;");
+		assertFalse(m.isHttpOnly());
+		assertFalse(m.getSecure());
+		testCookie("foo", "bar", m);
+		m = MockCookie.parse("foo=bar; HttpOnly");
+		testCookie("foo", "bar", m);
+		assertTrue(m.isHttpOnly());
+		assertFalse(m.getSecure());
+		m = MockCookie.parse("foo=bar; Secure");
+		testCookie("foo", "bar", m);
+		assertTrue(m.getSecure());
+		assertFalse(m.isHttpOnly());
+	}
+
+	private void testCookie(String name, String value, MockCookie mockCookie) {
+		assertEquals(name, mockCookie.getName());
+		assertEquals(value, mockCookie.getValue());
+	}
+
 
 	private void assertEqualEnumerations(Enumeration<?> enum1, Enumeration<?> enum2) {
 		assertNotNull(enum1);