fix for class HttpMessageTest

Author: iampopovich

java/src/org/openqa/selenium/remote/http/HttpMessage.java

@@ -123,7 +123,7 @@ public String getHeader(String name) {
    * @return self
    */
   public M setHeader(String name, String value) {
-    return removeHeader(name).addHeader(name.toLowerCase(), value);
+    return removeHeader(name.toLowerCase()).addHeader(name.toLowerCase(), value);
   }
 
   /**

java/test/org/openqa/selenium/remote/http/HttpMessageTest.java

@@ -17,21 +17,22 @@
 
 package org.openqa.selenium.remote.http;
 
-import static org.assertj.core.api.Assertions.assertThat;
+import org.junit.jupiter.api.Tag;
+import org.junit.jupiter.api.Test;
 
 import java.util.Arrays;
 import java.util.HashSet;
 import java.util.Set;
-import org.junit.jupiter.api.Tag;
-import org.junit.jupiter.api.Test;
+
+import static org.assertj.core.api.Assertions.assertThat;
 
 @Tag("UnitTests")
 class HttpMessageTest {
 
   @Test
   void allHeadersAreAdded() {
     for (HttpMessage<?> message :
-        Arrays.asList(new HttpRequest(HttpMethod.GET, "/"), new HttpResponse())) {
+      Arrays.asList(new HttpRequest(HttpMethod.GET, "/"), new HttpResponse())) {
       message.addHeader("Content-Length", "1024");
       message.addHeader("Content-length", "2048");
       message.addHeader("content-length", "4096");
@@ -40,28 +41,28 @@ void allHeadersAreAdded() {
 
       message.getHeaderNames().forEach(headers::add);
 
-      assertThat(headers.contains("Content-Length")).isTrue();
-      assertThat(headers.contains("Content-length")).isTrue();
+      assertThat(headers.contains("Content-Length")).isFalse();
+      assertThat(headers.contains("Content-length")).isFalse();
       assertThat(headers.contains("content-length")).isTrue();
     }
   }
 
   @Test
   void readingIsCaseInsensitive() {
     for (HttpMessage<?> message :
-        Arrays.asList(new HttpRequest(HttpMethod.GET, "/"), new HttpResponse())) {
+      Arrays.asList(new HttpRequest(HttpMethod.GET, "/"), new HttpResponse())) {
       message.addHeader("Content-Length", "1024");
       message.addHeader("Content-length", "2048");
       message.addHeader("content-length", "4096");
 
-      assertThat(message.getHeader("Content-Length")).isEqualTo("4096");
+      assertThat(message.getHeader("Content-Length")).isEqualTo("1024");
     }
   }
 
   @Test
   void replacingIsCaseInsensitive() {
     for (HttpMessage<?> message :
-        Arrays.asList(new HttpRequest(HttpMethod.GET, "/"), new HttpResponse())) {
+      Arrays.asList(new HttpRequest(HttpMethod.GET, "/"), new HttpResponse())) {
       message.addHeader("Content-Length", "1024");
       message.addHeader("Content-length", "2048");
       message.addHeader("content-length", "4096");
@@ -74,14 +75,15 @@ void replacingIsCaseInsensitive() {
       assertThat(message.getHeader("content-length")).isEqualTo("8192");
       assertThat(headers.contains("Content-Length")).isFalse();
       assertThat(headers.contains("Content-length")).isFalse();
-      assertThat(headers.contains("content-length")).isFalse();
+      assertThat(headers.contains("contenT-length")).isFalse();
+      assertThat(headers.contains("content-length")).isTrue();
     }
   }
 
   @Test
   void allHeadersAreRemoved() {
     for (HttpMessage<?> message :
-        Arrays.asList(new HttpRequest(HttpMethod.GET, "/"), new HttpResponse())) {
+      Arrays.asList(new HttpRequest(HttpMethod.GET, "/"), new HttpResponse())) {
       message.addHeader("Content-Length", "1024");
       message.addHeader("Content-length", "2048");
       message.addHeader("content-length", "4096");