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Add missing adapter tests

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Summary:
Couple more unit tests missing from `IGListAdapter`.

- [x] All tests pass. Demo project builds and runs.
- [x] I added tests, an experiment, or detailed why my change isn't tested.
- [x] I have reviewed the [contributing guide](https://github.com/Instagram/IGListKit/blob/master/.github/CONTRIBUTING.md)
Closes https://github.com/Instagram/IGListKit/pull/287

Differential Revision: D4281952

Pulled By: jessesquires

fbshipit-source-id: da01d22b291071e5b2a7623b263574738456b8b8
This commit is contained in:
Ryan Nystrom
2016-12-05 17:29:34 -08:00
committed by Facebook Github Bot
parent 0a08908f7f
commit 4baf267354
1 changed files with 23 additions and 0 deletions
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23
Tests/IGListAdapterTests.m
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@@ -850,4 +850,27 @@ XCTAssertEqual(CGPointEqualToPoint(point, p), YES); \
XCTAssertEqual(self.collectionView.numberOfSections, 3);
}
- (void)test_whenDeselectingThroughContext_thatCellDeselected {
self.dataSource.objects = @[@1, @2, @3];
[self.adapter reloadDataWithCompletion:nil];
NSIndexPath *path = [NSIndexPath indexPathForItem:0 inSection:0];
[self.collectionView selectItemAtIndexPath:path animated:NO scrollPosition:UICollectionViewScrollPositionTop];
XCTAssertTrue([[self.collectionView cellForItemAtIndexPath:path] isSelected]);
id section = [self.adapter sectionControllerForObject:@1];
[self.adapter deselectItemAtIndex:0 sectionController:section animated:NO];
XCTAssertFalse([[self.collectionView cellForItemAtIndexPath:path] isSelected]);
}
- (void)test_whenScrollingToIndex_withSectionController_thatPositionCorrect {
self.dataSource.objects = @[@1, @2, @3, @4, @5, @6, @7, @8, @9, @10, @11, @12, @13, @14, @15, @16, @17, @18, @19];
[self.adapter reloadDataWithCompletion:nil];
IGListSectionController<IGListSectionType> *section = [self.adapter sectionControllerForObject:@8];
[section.collectionContext scrollToSectionController:section atIndex:0 scrollPosition:UICollectionViewScrollPositionTop animated:NO];
XCTAssertEqual(self.collectionView.contentOffset.x, 0);
XCTAssertEqual(self.collectionView.contentOffset.y, 280);
}
@end