[e2e]Checking Messages count per page within Topic (#3413)

* [e2e]Checking available custom parameters with Topic editing

* [e2e]Checking Messages count per page within Topic

* [e2e]Checking Messages count per page within Topic.First Fix

* [e2e]Checking Messages count per page within Topic.Issue added

* [e2e]Checking Messages count per page within Topic.Second Fix

* [e2e]Checking Messages count per page within Topic.Second Fix

* [e2e]Checking Messages count per page within Topic.Third Fix

* [e2e]Checking Messages count per page within Topic.Third Fix

Author: ArthurNiedial

kafka-ui-e2e-checks/src/main/java/com/provectus/kafka/ui/pages/BasePage.java

@@ -23,6 +23,8 @@ public abstract class BasePage extends WebUtils {
     protected SelenideElement confirmationMdl = $x("//div[text()= 'Confirm the action']/..");
     protected SelenideElement confirmBtn = $x("//button[contains(text(),'Confirm')]");
     protected SelenideElement cancelBtn = $x("//button[contains(text(),'Cancel')]");
+    protected SelenideElement backBtn = $x("//button[contains(text(),'Back')]");
+    protected SelenideElement nextBtn = $x("//button[contains(text(),'Next')]");
     protected ElementsCollection ddlOptions = $$x("//li[@value]");
     protected ElementsCollection gridItems = $$x("//tr[@class]");
     protected String summaryCellLocator = "//div[contains(text(),'%s')]";

kafka-ui-e2e-checks/src/main/java/com/provectus/kafka/ui/pages/topics/TopicDetails.java

@@ -170,6 +170,13 @@ public TopicDetails clickMessagesAddFiltersBtn() {
         return this;
     }
 
+    @Step
+    public TopicDetails clickNextButton() {
+      nextBtn.shouldBe(Condition.enabled).click();
+      waitUntilSpinnerDisappear();
+      return this;
+    }
+
     @Step
     public TopicDetails openSavedFiltersListMdl() {
         savedFiltersLink.shouldBe(Condition.enabled).click();
@@ -240,6 +247,16 @@ public boolean isAddFilterBtnAddFilterMdlEnabled() {
         return isEnabled(addFilterBtnAddFilterMdl);
     }
 
+    @Step
+    public boolean isBackButtonEnabled() {
+        return isEnabled(backBtn);
+    }
+
+    @Step
+    public boolean isNextButtonEnabled() {
+      return isEnabled(nextBtn);
+    }
+
     @Step
     public boolean isActiveFilterVisible(String activeFilterName) {
         return isVisible($x(String.format(activeFilterNameLocator, activeFilterName)));

kafka-ui-e2e-checks/src/test/java/com/provectus/kafka/ui/smokeSuite/topics/MessagesTest.java

@@ -9,6 +9,7 @@
 import io.qameta.allure.Issue;
 import io.qameta.allure.Step;
 import io.qase.api.annotation.CaseId;
+import io.qase.api.annotation.QaseId;
 import org.testng.Assert;
 import org.testng.annotations.AfterClass;
 import org.testng.annotations.BeforeClass;
@@ -48,16 +49,21 @@ public class MessagesTest extends BaseTest {
             .setName("topic-to-recreate-attribute-" + randomAlphabetic(5))
             .setMessageKey(randomAlphabetic(5))
             .setMessageContent(randomAlphabetic(10));
+    private static final Topic TOPIC_FOR_CHECK_MESSAGES_COUNT = new Topic()
+             .setName("topic-for-check-messages-count" + randomAlphabetic(5))
+             .setMessageKey(randomAlphabetic(5))
+             .setMessageContent(randomAlphabetic(10));
     private static final List<Topic> TOPIC_LIST = new ArrayList<>();
 
     @BeforeClass(alwaysRun = true)
     public void beforeClass() {
         TOPIC_LIST.addAll(List.of(TOPIC_FOR_MESSAGES, TOPIC_FOR_CHECKING_FILTERS, TOPIC_TO_CLEAR_AND_PURGE_MESSAGES,
-                TOPIC_TO_RECREATE));
+                TOPIC_TO_RECREATE, TOPIC_FOR_CHECK_MESSAGES_COUNT));
         TOPIC_LIST.forEach(topic -> apiService.createTopic(topic.getName()));
         IntStream.range(1, 3).forEach(i -> apiService.sendMessage(TOPIC_FOR_CHECKING_FILTERS));
         waitUntilNewMinuteStarted();
         IntStream.range(1, 3).forEach(i -> apiService.sendMessage(TOPIC_FOR_CHECKING_FILTERS));
+        IntStream.range(1, 110).forEach(i -> apiService.sendMessage(TOPIC_FOR_CHECK_MESSAGES_COUNT));
     }
 
     @Suite(suiteId = SUITE_ID, title = SUITE_TITLE)
@@ -272,6 +278,31 @@ public void checkRecreateTopic() {
         softly.assertAll();
     }
 
+    @Ignore
+    @Issue("https://github.com/provectus/kafka-ui/issues/3129")
+    @QaseId(267)
+    @Test(priority = 10)
+    public void CheckMessagesCountPerPageWithinTopic() {
+        navigateToTopicsAndOpenDetails(TOPIC_FOR_CHECK_MESSAGES_COUNT.getName());
+        topicDetails
+                .openDetailsTab(MESSAGES);
+        int messagesPerPage = topicDetails.getAllMessages().size();
+        SoftAssert softly = new SoftAssert();
+        softly.assertEquals(messagesPerPage, 100, "getAllMessages()");
+        softly.assertFalse(topicDetails.isBackButtonEnabled(), "isBackButtonEnabled()");
+        softly.assertTrue(topicDetails.isNextButtonEnabled(), "isNextButtonEnabled()");
+        softly.assertAll();
+        int lastOffsetOnPage = topicDetails.getAllMessages()
+                        .get(messagesPerPage -1).getOffset();
+        topicDetails
+                .clickNextButton();
+        softly.assertEquals(topicDetails.getAllMessages().stream().findFirst().orElseThrow().getOffset(),
+                lastOffsetOnPage + 1, "findFirst().getOffset()");
+        softly.assertTrue(topicDetails.isBackButtonEnabled(), "isBackButtonEnabled()");
+        softly.assertFalse(topicDetails.isNextButtonEnabled(), "isNextButtonEnabled()");
+        softly.assertAll();
+    }
+
     @Step
     protected void produceMessage(Topic topic) {
         topicDetails