HttpTest encoded to Ascii

Also, added euro sign param check to Http client redirect tests

Signed-off-by: Thomas Segismont <tsegismont@gmail.com>

src/test/java/io/vertx/test/core/HttpTest.java

@@ -644,7 +644,7 @@ private void testURIAndPath(String uri, String path) {
 
   @Test
   public void testParamUmlauteDecoding() throws UnsupportedEncodingException {
-    testParamDecoding("äüö");
+    testParamDecoding("\u00e4\u00fc\u00f6");
   }
 
   @Test
@@ -669,7 +669,7 @@ public void testParamNormalDecoding() throws UnsupportedEncodingException {
 
   @Test
   public void testParamAltogetherDecoding() throws UnsupportedEncodingException {
-    testParamDecoding("äüö+% hello");
+    testParamDecoding("\u00e4\u00fc\u00f6+% hello");
   }
 
   private void testParamDecoding(String value) throws UnsupportedEncodingException {
@@ -3814,8 +3814,8 @@ class MockResp implements HttpClientResponse {
   }
 
   @Test
-  public void testFollowRedirectEncodedUrl() throws Exception {
-    String value1 = "한글", value2 = "A B+C";
+  public void testFollowRedirectEncodedParams() throws Exception {
+    String value1 = "\ud55c\uae00", value2 = "A B+C", value3 = "123 \u20ac";
     server.requestHandler(req -> {
       switch (req.path()) {
         case "/first/call/from/client":
@@ -3825,7 +3825,8 @@ public void testFollowRedirectEncodedUrl() throws Exception {
               .append(req.scheme()).append("://").append(DEFAULT_HTTP_HOST).append(':').append(DEFAULT_HTTP_PORT)
               .append("/redirected/from/client?")
               .append("encoded1=").append(URLEncoder.encode(value1, "UTF-8")).append('&')
-              .append("encoded2=").append(URLEncoder.encode(value2, "UTF-8"));
+              .append("encoded2=").append(URLEncoder.encode(value2, "UTF-8")).append('&')
+              .append("encoded3=").append(URLEncoder.encode(value3, "UTF-8"));
           } catch (UnsupportedEncodingException e) {
             fail(e);
           }
@@ -3837,6 +3838,7 @@ public void testFollowRedirectEncodedUrl() throws Exception {
         case "/redirected/from/client":
           assertEquals(value1, req.params().get("encoded1"));
           assertEquals(value2, req.params().get("encoded2"));
+          assertEquals(value3, req.params().get("encoded3"));
           req.response().end();
           break;
         default: