react-native/Examples/UIExplorer/UIExplorerIntegrationTests/RCTUIManagerScenarioTests.m

193 lines
6.6 KiB
Objective-C

/**
* The examples provided by Facebook are for non-commercial testing and
* evaluation purposes only.
*
* Facebook reserves all rights not expressly granted.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NON INFRINGEMENT. IN NO EVENT SHALL
* FACEBOOK BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
* AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#import <UIKit/UIKit.h>
#import <XCTest/XCTest.h>
#import "RCTSparseArray.h"
#import "RCTUIManager.h"
#import "UIView+React.h"
@interface RCTUIManager (Testing)
- (void)_manageChildren:(NSNumber *)containerReactTag
moveFromIndices:(NSArray *)moveFromIndices
moveToIndices:(NSArray *)moveToIndices
addChildReactTags:(NSArray *)addChildReactTags
addAtIndices:(NSArray *)addAtIndices
removeAtIndices:(NSArray *)removeAtIndices
registry:(RCTSparseArray *)registry;
@property (nonatomic, readonly) RCTSparseArray *viewRegistry;
@end
@interface RCTUIManagerScenarioTests : XCTestCase
@property (nonatomic, readwrite, strong) RCTUIManager *uiManager;
@end
@implementation RCTUIManagerScenarioTests
- (void)setUp
{
[super setUp];
_uiManager = [RCTUIManager new];
// Register 20 views to use in the tests
for (NSInteger i = 1; i <= 20; i++) {
UIView *registeredView = [UIView new];
registeredView.reactTag = @(i);
_uiManager.viewRegistry[i] = registeredView;
}
}
- (void)testManagingChildrenToAddViews
{
UIView *containerView = _uiManager.viewRegistry[20];
NSMutableArray *addedViews = [NSMutableArray array];
NSArray *tagsToAdd = @[@1, @2, @3, @4, @5];
NSArray *addAtIndices = @[@0, @1, @2, @3, @4];
for (NSNumber *tag in tagsToAdd) {
[addedViews addObject:_uiManager.viewRegistry[tag]];
}
// Add views 1-5 to view 20
[_uiManager _manageChildren:@20
moveFromIndices:nil
moveToIndices:nil
addChildReactTags:tagsToAdd
addAtIndices:addAtIndices
removeAtIndices:nil
registry:_uiManager.viewRegistry];
XCTAssertTrue([[containerView reactSubviews] count] == 5,
@"Expect to have 5 react subviews after calling manage children \
with 5 tags to add, instead have %lu", (unsigned long)[[containerView reactSubviews] count]);
for (UIView *view in addedViews) {
XCTAssertTrue([view superview] == containerView,
@"Expected to have manage children successfully add children");
[view removeFromSuperview];
}
}
- (void)testManagingChildrenToRemoveViews
{
UIView *containerView = _uiManager.viewRegistry[20];
NSMutableArray *removedViews = [NSMutableArray array];
NSArray *removeAtIndices = @[@0, @4, @8, @12, @16];
for (NSNumber *index in removeAtIndices) {
NSNumber *reactTag = @(index.integerValue + 2);
[removedViews addObject:_uiManager.viewRegistry[reactTag]];
}
for (NSInteger i = 2; i < 20; i++) {
UIView *view = _uiManager.viewRegistry[i];
[containerView addSubview:view];
}
// Remove views 1-5 from view 20
[_uiManager _manageChildren:@20
moveFromIndices:nil
moveToIndices:nil
addChildReactTags:nil
addAtIndices:nil
removeAtIndices:removeAtIndices
registry:_uiManager.viewRegistry];
XCTAssertEqual(containerView.reactSubviews.count, (NSUInteger)13,
@"Expect to have 13 react subviews after calling manage children\
with 5 tags to remove and 18 prior children, instead have %zd",
containerView.reactSubviews.count);
for (UIView *view in removedViews) {
XCTAssertTrue([view superview] == nil,
@"Expected to have manage children successfully remove children");
// After removing views are unregistered - we need to reregister
_uiManager.viewRegistry[view.reactTag] = view;
}
for (NSInteger i = 2; i < 20; i++) {
UIView *view = _uiManager.viewRegistry[i];
if (![removedViews containsObject:view]) {
XCTAssertTrue([view superview] == containerView,
@"Should not have removed view with react tag %ld during delete but did", (long)i);
[view removeFromSuperview];
}
}
}
// We want to start with views 1-10 added at indices 0-9
// Then we'll remove indices 2, 3, 5 and 8
// Add views 11 and 12 to indices 0 and 6
// And move indices 4 and 9 to 1 and 7
// So in total it goes from:
// [1,2,3,4,5,6,7,8,9,10]
// to
// [11,5,1,2,7,8,12,10]
- (void)testManagingChildrenToAddRemoveAndMove
{
UIView *containerView = _uiManager.viewRegistry[20];
NSArray *removeAtIndices = @[@2, @3, @5, @8];
NSArray *addAtIndices = @[@0, @6];
NSArray *tagsToAdd = @[@11, @12];
NSArray *moveFromIndices = @[@4, @9];
NSArray *moveToIndices = @[@1, @7];
// We need to keep these in array to keep them around
NSMutableArray *viewsToRemove = [NSMutableArray array];
for (NSUInteger i = 0; i < removeAtIndices.count; i++) {
NSNumber *reactTagToRemove = @([removeAtIndices[i] integerValue] + 1);
UIView *viewToRemove = _uiManager.viewRegistry[reactTagToRemove];
[viewsToRemove addObject:viewToRemove];
}
for (NSInteger i = 1; i < 11; i++) {
UIView *view = _uiManager.viewRegistry[i];
[containerView addSubview:view];
}
[_uiManager _manageChildren:@20
moveFromIndices:moveFromIndices
moveToIndices:moveToIndices
addChildReactTags:tagsToAdd
addAtIndices:addAtIndices
removeAtIndices:removeAtIndices
registry:_uiManager.viewRegistry];
XCTAssertTrue([[containerView reactSubviews] count] == 8,
@"Expect to have 8 react subviews after calling manage children,\
instead have the following subviews %@", [containerView reactSubviews]);
NSArray *expectedReactTags = @[@11, @5, @1, @2, @7, @8, @12, @10];
for (NSUInteger i = 0; i < containerView.subviews.count; i++) {
XCTAssertEqualObjects([[containerView reactSubviews][i] reactTag], expectedReactTags[i],
@"Expected subview at index %ld to have react tag #%@ but has tag #%@",
(long)i, expectedReactTags[i], [[containerView reactSubviews][i] reactTag]);
}
// Clean up after ourselves
for (NSInteger i = 1; i < 13; i++) {
UIView *view = _uiManager.viewRegistry[i];
[view removeFromSuperview];
}
for (UIView *view in viewsToRemove) {
_uiManager.viewRegistry[view.reactTag] = view;
}
}
@end