Add ParameterRequestMatcher

Closes gh-15342

web/src/test/java/org/springframework/security/web/util/matcher/ParameterRequestMatcherTests.java

@@ -0,0 +1,64 @@
+/*
+ * Copyright 2002-2024 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.springframework.security.web.util.matcher;
+
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
+import org.mockito.junit.jupiter.MockitoExtension;
+
+import org.springframework.mock.web.MockHttpServletRequest;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+/**
+ * Tests for {@link ParameterRequestMatcher}
+ *
+ * @author Josh Cummings
+ */
+@ExtendWith(MockitoExtension.class)
+public class ParameterRequestMatcherTests {
+
+	@Test
+	public void matchesWhenNameThenMatchesOnParameterName() {
+		ParameterRequestMatcher matcher = new ParameterRequestMatcher("name");
+		MockHttpServletRequest request = new MockHttpServletRequest("GET", "/foo/bar");
+		assertThat(matcher.matches(request)).isFalse();
+		request.setParameter("name", "value");
+		assertThat(matcher.matches(request)).isTrue();
+	}
+
+	@Test
+	public void matchesWhenNameAndValueThenMatchesOnBoth() {
+		ParameterRequestMatcher matcher = new ParameterRequestMatcher("name", "value");
+		MockHttpServletRequest request = new MockHttpServletRequest("GET", "/foo/bar");
+		request.setParameter("name", "value");
+		assertThat(matcher.matches(request)).isTrue();
+		request.setParameter("name", "wrong");
+		assertThat(matcher.matches(request)).isFalse();
+	}
+
+	@Test
+	public void matchesWhenValuePlaceholderThenMatchesOnName() {
+		ParameterRequestMatcher matcher = new ParameterRequestMatcher("name", "{placeholder}");
+		MockHttpServletRequest request = new MockHttpServletRequest("GET", "/foo/bar");
+		request.setParameter("name", "value");
+		RequestMatcher.MatchResult result = matcher.matcher(request);
+		assertThat(result.isMatch()).isTrue();
+		assertThat(result.getVariables().get("placeholder")).isEqualTo("value");
+	}
+
+}