测者的测试技术笔记：Screenplay 模式（Journey 模式）

Screenplay模式

Junit的Screenplay

举例

1. Actor theReceptionist =newActor().with(WebBrowsing.ability())
2. theReceptionist.attemptsTo(
3. Go.to(findOwnersScreen.url()),
4. Search.forOwnersWith(EMPTY_SEARCH_TERMS),
5. Count.theNumberOfOwners()
6. );
7. assertThat(
8. theReceptionist.sawThatThe(numberOfOwners()),
9. was(TheExpectedNumberOfOwners)
10. );

• A Task

1. privatestaticString searchTerms;
2. @Override
3. publicvoid performAs(Actor asAReceptionist){
4. asAReceptionist.attemptTo(
5. Enter.the(searchTerms).into(findOwnersScreen.searchTerms),
6. Click.onThe(findOwnersScreen.searchButton)
7. );
8. }
9. publicSearchForOwnersWith(String searchTerms）{
10. this.searchTerms = searchTerms;
11. }

• A Screen

1. @Url("owner/find.html")
2. publicclassFindOwnerScreenextendsWebScreen{
3. @LocateBy(css="#search-owner-form input")
4. publicScreenElement searchTerms;
5. @LocateBy(css="##search-owner-form button")
6. publicSearchElement searchButton；

• An Action

1. publicclassEnterextendsWebDriverInteractionimplementsPerform{
2. privateString text;
3. privateScreenElement field;
4. publicvoid performAs(Actor actor){
5. web(actor).findElement(field.locator()).sendKeys(text);
6. }
7. publicEnter(String text){this.text = text;}
8. publicstaticEnter the(String text){returnnewEnter(text);}
9. publicPerforminto(ScreenElement field){
10. this.field = field;
11. returnthis;
12. }
13. }

优越性

相比于PO模式

• screen的类更小
• 更精简更聚焦的Task类
• 可读性更高
• 继承关系简单