Test variations in the todo filters (Active, Completed, All) using a single parameterized test

Author: ashwiniraokarai

src/test/java/todomvc/acceptancetests/WhenFilteringTasks.java

@@ -1,7 +1,65 @@
 package todomvc.acceptancetests;
 
+import org.assertj.core.api.Assertions;
+import org.junit.jupiter.api.AfterEach;
+import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
+import org.junit.jupiter.params.ParameterizedTest;
+import org.junit.jupiter.params.provider.Arguments;
+import org.junit.jupiter.params.provider.CsvSource;
+import org.junit.jupiter.params.provider.MethodSource;
+import org.openqa.selenium.WebDriver;
+import org.openqa.selenium.chrome.ChromeDriver;
+import todomvc.pageactions.ToDoPage;
 
+import java.util.Arrays;
+import java.util.List;
+import java.util.stream.Stream;
+
+/*
+* Write a data-driven test to test the following scenarios:
+When you add the items "Feed the cat" and "Walk the dog", and complete "Feed the cat", and then filter by "Completed", you should only see "Feed the cat"
+When you add the items "Feed the cat" and "Walk the dog", and complete "Feed the cat", and then filter by "Active", you should only see "Walk the dog"
+When you add the items "Feed the cat" and "Walk the dog", and complete "Feed the cat", and then filter by "All", you should all the items
+*
+* */
 public class WhenFilteringTasks {
 
+    private WebDriver driver;
+    private ToDoPage toDoPage;
+
+    @BeforeEach
+    public void setUp(){
+        driver = new ChromeDriver();
+        toDoPage = new ToDoPage(driver);
+    }
+
+    @AfterEach
+    public void tearDown(){
+        driver.quit();
+    }
+
+    @ParameterizedTest(name="Complete task: {0},Filter by {1}, See tasks: {2}")
+    @MethodSource("testDataProvider")
+    public void canFilterByTaskStatus(String toDoItemToComplete, String filterLinkText, List<String> expectedToDoItems){
+        toDoPage.openToDoApp();
+        toDoPage.addItemsCalled("Feed the cat", "Walk the dog");
+        toDoPage.completeItemCalled(toDoItemToComplete);
+
+        toDoPage.filterBy(filterLinkText);
+
+        Assertions.assertThat(toDoPage.listOfTextsOfToDoItems()).isEqualTo(expectedToDoItems);
+    }
+
+/* Return a Stream of Arguments
+     Each Argument is a container for a set of String arguments (like a row of data in a csv source with each cell representing one argument)
+     Each String is consumed as a parameter on the receiving end (by the Test Method), row by row
+ */
+    public static Stream<Arguments> testDataProvider(){
+        return Stream.of(
+                Arguments.of("Feed the cat", "Completed", Arrays.asList("Feed the cat") ),
+                Arguments.of("Feed the cat", "Active", Arrays.asList("Walk the dog") ),
+                Arguments.of("Feed the cat", "All", Arrays.asList("Feed the cat", "Walk the dog" ))
+        );
+    }
 }