add test_ersp_04.02 Verify images sizes

update exercises_ru_similar_phrases_page_test.py, exercises_ru_similar_phrases_page.py
#478

Author: alena-krauchuk

pages/exercises_ru_similar_phrases_page.py

@@ -216,5 +216,11 @@ def click_on_subgroup_links(self):
     @allure.step("Get the list of attribute 'style' values of images in links")
     def get_links_style(self):
         style = [image.get_attribute('style') for image in self.get_list4_of_links()]
-        print(len(style), *style, sep='\n')
+        # print(len(style), *style, sep='\n')
         return style
+
+    @allure.step("Get the list of sizes of background-images in links")
+    def get_images_sizes(self):
+        images_size = [image.size for image in self.get_list4_of_links()]
+        print(len(images_size), *images_size, sep='\n')
+        return images_size

tests/exercises_ru_similar_phrases_page_test.py

@@ -168,3 +168,9 @@ def test_ersp_04_01_verify_images_attributes(self, driver, exercises_ru_similar_
             assert links_style, "The 'style' attribute value of links is empty"
             assert all(element in erspPD.subgroup_links_style for element in links_style), \
                 "The 'style' attribute value of links mismatches valid values"
+
+        @allure.title("Verify sizes of background-images in links on the page")
+        def test_ersp_04_02_verify_images_sizes(self, driver, exercises_ru_similar_phrases_page_open):
+            page = erspPage(driver)
+            images_size = page.get_images_sizes()
+            assert images_size != 0, "Background-images have not sizes"