Testing TableLayout/TableRow with Espresso

[Ewan]

Hi,

I wondered if anyone has ideas about using Espresso on tables. The views in each TableRow may well have shared ids; so if, for instance, you wanted to test the string in a TextView in the third column of the first row of the table, I don't think there's an easy way to do this. The TableRows aren't views themselves, is there another approach than to tag each view in the table with a composite object which encapsulated row and column info and then write appropriate Matcher<View> instances to match given 'cells' in the table (yuk..)?

Any thoughts?

Cheers
Ewan

[Jose Alcérreca]

Hey Ewan, 

TableRows are Views. You can create your custom matcher to do something like atPositionInTable(x,y). Check out the hasSibling matcher for example

https://android.googlesource.com/platform/frameworks/testing/+/android-support-test/espresso/core/src/main/java/android/support/test/espresso/matcher/ViewMatchers.java

and the custom matcher sample

https://github.com/googlesamples/android-testing/blob/master/ui/espresso/CustomMatcherSample/app/src/androidTest/java/com/example/android/testing/espresso/CustomMatcherSample/HintMatcher.java

---

Also, if you Google your problem:

http://stackoverflow.com/questions/25975564/how-to-match-this-table-cell-using-espresso

the first result has a working matcher :)

Jose Alcérreca |

Developer Programs Engineer |

ja...@google.com |

Google+

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[Ewan]

Hi Jose,

That's great, many thanks for help ! The new atPositionInTable matcher seems to be working fine, as below :)

Cheers, Ewan

@Test

public void testAtPositionInTableMatcher() {

    onView(atPositionInTable(0,0)).check(matches(withText("0,0")));

    onView(atPositionInTable(0,1)).check(matches(withText("0,1")));

    onView(atPositionInTable(1,0)).check(matches(withText("1,0")));

    onView(atPositionInTable(1,1)).check(matches(withText("1,1")));

    onView(atPositionInTable(1,2)).check(doesNotExist());

}

static Matcher<View> atPositionInTable(final int x, final int y) {

    return new TypeSafeMatcher<View>(){

        @Override

        public void describeTo(Description description) {

            description.appendText("is at position # " + x + " , " + y);

        }

        @Override

        public boolean matchesSafely(View view) {

            ViewParent viewParent = view.getParent();

            if (!(viewParent instanceof TableRow)) {

                return false;

            }

            TableRow row = (TableRow) viewParent;

            TableLayout table = (TableLayout) row.getParent();

            if (table.indexOfChild(row) != y)

                return false;

            if (row.indexOfChild(view) == x)

                return true;

            else

                return false;

        }};

}

On Wednesday, October 21, 2015 at 5:12:08 PM UTC+1, Jose Alcerreca wrote:

Hey Ewan, 

TableRows are Views. You can create your custom matcher to do something like atPositionInTable(x,y). Check out the hasSibling matcher for example

https://android.googlesource.com/platform/frameworks/testing/+/android-support-test/espresso/core/src/main/java/android/support/test/espresso/matcher/ViewMatchers.java

and the custom matcher sample

https://github.com/googlesamples/android-testing/blob/master/ui/espresso/CustomMatcherSample/app/src/androidTest/java/com/example/android/testing/espresso/CustomMatcherSample/HintMatcher.java

---

Also, if you Google your problem:

http://stackoverflow.com/questions/25975564/how-to-match-this-table-cell-using-espresso

the first result has a working matcher :)

Jose Alcérreca |

Developer Programs Engineer |

ja...@google.com |

Google+

On 21 October 2015 at 16:11, Ewan <ew...@telesense.co.uk> wrote:

Hi,

I wondered if anyone has ideas about using Espresso on tables. The views in each TableRow may well have shared ids; so if, for instance, you wanted to test the string in a TextView in the third column of the first row of the table, I don't think there's an easy way to do this. The TableRows aren't views themselves, is there another approach than to tag each view in the table with a composite object which encapsulated row and column info and then write appropriate Matcher<View> instances to match given 'cells' in the table (yuk..)?

Any thoughts?

Cheers
Ewan

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