Test for substring in Text widget












2















Normally to find an entire string you can use find.text() like this:



expect(find.text('text to find'), findsOneWidget);


What about finding a substring in a Text widget? Say there was text of 'text to find', and we just wanted to check that 'to' is a part of a Text widget.










share|improve this question



























    2















    Normally to find an entire string you can use find.text() like this:



    expect(find.text('text to find'), findsOneWidget);


    What about finding a substring in a Text widget? Say there was text of 'text to find', and we just wanted to check that 'to' is a part of a Text widget.










    share|improve this question

























      2












      2








      2








      Normally to find an entire string you can use find.text() like this:



      expect(find.text('text to find'), findsOneWidget);


      What about finding a substring in a Text widget? Say there was text of 'text to find', and we just wanted to check that 'to' is a part of a Text widget.










      share|improve this question














      Normally to find an entire string you can use find.text() like this:



      expect(find.text('text to find'), findsOneWidget);


      What about finding a substring in a Text widget? Say there was text of 'text to find', and we just wanted to check that 'to' is a part of a Text widget.







      dart flutter






      share|improve this question













      share|improve this question











      share|improve this question




      share|improve this question










      asked Nov 26 '18 at 0:08









      S.D.S.D.

      2211113




      2211113
























          1 Answer
          1






          active

          oldest

          votes


















          2














          By using find.byWidgetPredicate, you can specify your own validation predicate and thus check everything you want like a substring of the text.



          eg :



          expect(find.byWidgetPredicate((widget) {
          if (widget is Text) {
          final Text textWidget = widget;
          if (textWidget.data != null)
          return textWidget.data.contains('mySubstr');
          return textWidget.textSpan.toPlainText().contains('mySubstr');
          }
          return false;
          }), findsOneWidget);





          share|improve this answer























            Your Answer






            StackExchange.ifUsing("editor", function () {
            StackExchange.using("externalEditor", function () {
            StackExchange.using("snippets", function () {
            StackExchange.snippets.init();
            });
            });
            }, "code-snippets");

            StackExchange.ready(function() {
            var channelOptions = {
            tags: "".split(" "),
            id: "1"
            };
            initTagRenderer("".split(" "), "".split(" "), channelOptions);

            StackExchange.using("externalEditor", function() {
            // Have to fire editor after snippets, if snippets enabled
            if (StackExchange.settings.snippets.snippetsEnabled) {
            StackExchange.using("snippets", function() {
            createEditor();
            });
            }
            else {
            createEditor();
            }
            });

            function createEditor() {
            StackExchange.prepareEditor({
            heartbeatType: 'answer',
            autoActivateHeartbeat: false,
            convertImagesToLinks: true,
            noModals: true,
            showLowRepImageUploadWarning: true,
            reputationToPostImages: 10,
            bindNavPrevention: true,
            postfix: "",
            imageUploader: {
            brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
            contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
            allowUrls: true
            },
            onDemand: true,
            discardSelector: ".discard-answer"
            ,immediatelyShowMarkdownHelp:true
            });


            }
            });














            draft saved

            draft discarded


















            StackExchange.ready(
            function () {
            StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53473275%2ftest-for-substring-in-text-widget%23new-answer', 'question_page');
            }
            );

            Post as a guest















            Required, but never shown

























            1 Answer
            1






            active

            oldest

            votes








            1 Answer
            1






            active

            oldest

            votes









            active

            oldest

            votes






            active

            oldest

            votes









            2














            By using find.byWidgetPredicate, you can specify your own validation predicate and thus check everything you want like a substring of the text.



            eg :



            expect(find.byWidgetPredicate((widget) {
            if (widget is Text) {
            final Text textWidget = widget;
            if (textWidget.data != null)
            return textWidget.data.contains('mySubstr');
            return textWidget.textSpan.toPlainText().contains('mySubstr');
            }
            return false;
            }), findsOneWidget);





            share|improve this answer




























              2














              By using find.byWidgetPredicate, you can specify your own validation predicate and thus check everything you want like a substring of the text.



              eg :



              expect(find.byWidgetPredicate((widget) {
              if (widget is Text) {
              final Text textWidget = widget;
              if (textWidget.data != null)
              return textWidget.data.contains('mySubstr');
              return textWidget.textSpan.toPlainText().contains('mySubstr');
              }
              return false;
              }), findsOneWidget);





              share|improve this answer


























                2












                2








                2







                By using find.byWidgetPredicate, you can specify your own validation predicate and thus check everything you want like a substring of the text.



                eg :



                expect(find.byWidgetPredicate((widget) {
                if (widget is Text) {
                final Text textWidget = widget;
                if (textWidget.data != null)
                return textWidget.data.contains('mySubstr');
                return textWidget.textSpan.toPlainText().contains('mySubstr');
                }
                return false;
                }), findsOneWidget);





                share|improve this answer













                By using find.byWidgetPredicate, you can specify your own validation predicate and thus check everything you want like a substring of the text.



                eg :



                expect(find.byWidgetPredicate((widget) {
                if (widget is Text) {
                final Text textWidget = widget;
                if (textWidget.data != null)
                return textWidget.data.contains('mySubstr');
                return textWidget.textSpan.toPlainText().contains('mySubstr');
                }
                return false;
                }), findsOneWidget);






                share|improve this answer












                share|improve this answer



                share|improve this answer










                answered Nov 26 '18 at 16:41









                MuldecMuldec

                633110




                633110
































                    draft saved

                    draft discarded




















































                    Thanks for contributing an answer to Stack Overflow!


                    • Please be sure to answer the question. Provide details and share your research!

                    But avoid



                    • Asking for help, clarification, or responding to other answers.

                    • Making statements based on opinion; back them up with references or personal experience.


                    To learn more, see our tips on writing great answers.




                    draft saved


                    draft discarded














                    StackExchange.ready(
                    function () {
                    StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53473275%2ftest-for-substring-in-text-widget%23new-answer', 'question_page');
                    }
                    );

                    Post as a guest















                    Required, but never shown





















































                    Required, but never shown














                    Required, but never shown












                    Required, but never shown







                    Required, but never shown

































                    Required, but never shown














                    Required, but never shown












                    Required, but never shown







                    Required, but never shown







                    Popular posts from this blog

                    Wiesbaden

                    Marschland

                    Dieringhausen