/test/invalid/empty-jpeg-file: port to using WireMock stub.

No functional changes.

Author: php-coder

src/main/java/ru/mystamps/web/controller/TestController.java

@@ -30,12 +30,6 @@
 @Controller
 public class TestController {
 
-	@GetMapping("/test/invalid/empty-jpeg-file")
-	public void emptyJpegFile(HttpServletResponse response) {
-		response.setContentType("image/jpeg");
-		response.setContentLength(0);
-	}
-	
 	@GetMapping(path = "/test/invalid/not-image-file", produces = "application/json")
 	@ResponseBody
 	public String simpleJson() {

src/test/robotframework/series/add-image/validation.robot

@@ -45,7 +45,7 @@ Add image with URL that causes a redirect
 	Element Text Should Be  id=image-url.errors  URL must not redirect to another address
 
 Add image with URL to an empty file
-	Input Text              id=image-url  ${SITE_URL}/test/invalid/empty-jpeg-file
+	Input Text              id=image-url  ${MOCK_SERVER}/series/empty-jpeg-file
 	Submit Form             id=add-image-form
 	Element Text Should Be  id=image-url.errors  File must not be empty
 

src/test/robotframework/series/creation/validation-admin.robot

@@ -62,7 +62,7 @@ Create series with image URL that causes a redirect
 	Element Text Should Be  id=image-url.errors  URL must not redirect to another address
 
 Create series with image URL to an empty file
-	Input Text              id=image-url  ${SITE_URL}/test/invalid/empty-jpeg-file
+	Input Text              id=image-url  ${MOCK_SERVER}/series/empty-jpeg-file
 	Submit Form             id=add-series-form
 	Element Text Should Be  id=image-url.errors  File must not be empty
 

src/test/wiremock/mappings/series/empty-jpeg-file.json

@@ -0,0 +1,13 @@
+{
+  "request": {
+    "method": "GET",
+    "url": "/series/empty-jpeg-file"
+  },
+  "response": {
+    "status": 200,
+    "headers": {
+      "Content-Type": "image/jpeg",
+      "Content-Length": "0"
+    }
+  }
+}