fix: enhance IsWebSocket() test cases with Connection header validation

Author: raju-mechatronics

context_test.go

@@ -969,15 +969,21 @@ func TestContext_IsWebSocket(t *testing.T) {
 		{
 			&context{
 				request: &http.Request{
-					Header: http.Header{HeaderUpgrade: []string{"websocket"}},
+					Header: http.Header{
+						HeaderUpgrade:    []string{"websocket"},
+						HeaderConnection: []string{"upgrade"},
+					},
 				},
 			},
 			assert.True,
 		},
 		{
 			&context{
 				request: &http.Request{
-					Header: http.Header{HeaderUpgrade: []string{"Websocket"}},
+					Header: http.Header{
+						HeaderUpgrade:    []string{"Websocket"},
+						HeaderConnection: []string{"Upgrade"},
+					},
 				},
 			},
 			assert.True,
@@ -996,6 +1002,17 @@ func TestContext_IsWebSocket(t *testing.T) {
 			},
 			assert.False,
 		},
+		{
+			&context{
+				request: &http.Request{
+					Header: http.Header{
+						HeaderUpgrade:    []string{"websocket"},
+						HeaderConnection: []string{"close"},
+					},
+				},
+			},
+			assert.False,
+		},
 	}
 
 	for i, tt := range tests {