#71 add post-execute-condition

tests:
- skip condition

examples/general-tests/src/main/java/com/giffing/bucket4j/spring/boot/starter/general/tests/filter/servlet/ServletTestSuite.java

@@ -11,7 +11,8 @@
         PostExecuteConditionTest.class,
         EmptyHttpResponseTest.class,
         ChangeResponseHttpStatusCodeTest.class,
-        AddResponseHeaderTest.class
+        AddResponseHeaderTest.class,
+        SkipConditionTest.class
 })
 public class ServletTestSuite {
 }

examples/general-tests/src/main/java/com/giffing/bucket4j/spring/boot/starter/general/tests/filter/servlet/SkipConditionTest.java

@@ -0,0 +1,78 @@
+package com.giffing.bucket4j.spring.boot.starter.general.tests.filter.servlet;
+
+import org.junit.jupiter.api.Test;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.autoconfigure.web.servlet.AutoConfigureMockMvc;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.http.HttpStatus;
+import org.springframework.test.annotation.DirtiesContext;
+import org.springframework.test.web.servlet.MockMvc;
+
+import java.util.Collections;
+import java.util.stream.IntStream;
+
+import static com.giffing.bucket4j.spring.boot.starter.general.tests.filter.servlet.MockMvcHelper.*;
+import static org.hamcrest.Matchers.containsString;
+import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.get;
+import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.*;
+
+@SpringBootTest(properties = {
+        "logging.level.com.giffing.bucket4j=debug",
+        "bucket4j.filters[0].cache-name=buckets",
+        "bucket4j.filters[0].url=.*",
+        "bucket4j.filters[0].rate-limits[0].skip-condition=getHeader('user') eq 'admin'",
+        "bucket4j.filters[0].rate-limits[0].bandwidths[0].capacity=5",
+        "bucket4j.filters[0].rate-limits[0].bandwidths[0].time=10",
+        "bucket4j.filters[0].rate-limits[0].bandwidths[0].unit=seconds",
+})
+@AutoConfigureMockMvc
+@DirtiesContext
+public class SkipConditionTest {
+
+    public static final String HEADER_USER = "user";
+    public static final String TEST_URL = "/hello";
+
+    @Autowired
+    private MockMvc mockMvc;
+
+    @Test
+    @DirtiesContext
+    void request_is_blocked_when_header_username_is_not_admin() throws Exception {
+        String url = TEST_URL;
+        IntStream.rangeClosed(1, 5)
+                .boxed()
+                .sorted(Collections.reverseOrder())
+                .forEach(counter -> webRequestWithStatus(mockMvc, url, HttpStatus.OK, counter - 1));
+        blockedWebRequestDueToRateLimit(mockMvc, TEST_URL);
+    }
+
+    @Test
+    @DirtiesContext
+    void no_rate_limit_for_user_admin_in_header() throws Exception {
+        for(int i = 1; i <=20; i++) {
+            mockMvc
+                    .perform(get(TEST_URL)
+                            .header("user", "admin")
+                    )
+                    .andExpect(status().is(HttpStatus.OK.value()))
+                    .andExpect(header().doesNotExist("X-Rate-Limit-Remaining"))
+                    .andExpect(content().string(containsString("Hello World")));
+        }
+    }
+
+    @Test
+    @DirtiesContext
+    void rate_limit_for_user_bilbo_in_header() throws Exception {
+        for(int remainingTries = 5; remainingTries >= 1; remainingTries--) {
+            mockMvc
+                    .perform(get(TEST_URL)
+                            .header(HEADER_USER, "bilbo")
+                    )
+                    .andExpect(status().is(HttpStatus.OK.value()))
+                    .andExpect(header().longValue("X-Rate-Limit-Remaining", remainingTries -1))
+                    .andExpect(content().string(containsString("Hello World")));
+        }
+        blockedWebRequestDueToRateLimit(mockMvc, TEST_URL);
+    }
+
+}