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#import "MGLStyleLayerTests.h"
#import "NSPredicate+MGLAdditions.h"
#import "MGLValueEvaluator.h"
@interface MGLFilterTests : MGLStyleLayerTests {
MGLGeoJSONSource *source;
MGLLineStyleLayer *layer;
}
@end
@implementation MGLFilterTests
- (void)setUp
{
[super setUp];
NSString *filePath = [[NSBundle bundleForClass:self.class] pathForResource:@"amsterdam" ofType:@"geojson"];
NSURL *url = [NSURL fileURLWithPath:filePath];
NSData *geoJSONData = [NSData dataWithContentsOfURL:url];
source = [[MGLGeoJSONSource alloc] initWithIdentifier:@"test-source" geoJSONData:geoJSONData options:nil];
[self.mapView.style addSource:source];
layer = [[MGLLineStyleLayer alloc] initWithIdentifier:@"test-layer" source:source];
}
- (void)tearDown
{
[self.mapView.style removeLayer:layer];
[self.mapView.style removeSource:source];
}
- (NSArray<NSPredicate *> *)predicates
{
NSPredicate *equalPredicate = [NSPredicate predicateWithFormat:@"type == 'neighbourhood'"];
NSPredicate *notEqualPredicate = [NSPredicate predicateWithFormat:@"type != 'park'"];
NSPredicate *greaterThanPredicate = [NSPredicate predicateWithFormat:@"%K > %@", @"stroke-width", @2.1];
NSPredicate *greaterThanOrEqualToPredicate = [NSPredicate predicateWithFormat:@"%K >= %@", @"stroke-width", @2.1];
NSPredicate *lessThanOrEqualToPredicate = [NSPredicate predicateWithFormat:@"%K <= %@", @"stroke-width", @2.1];
NSPredicate *lessThanPredicate = [NSPredicate predicateWithFormat:@"%K < %@", @"stroke-width", @2.1];
NSPredicate *inPredicate = [NSPredicate predicateWithFormat:@"type IN %@", @[@"park", @"neighbourhood"]];
NSPredicate *notInPredicate = [NSPredicate predicateWithFormat:@"NOT (type IN %@)", @[@"park", @"neighbourhood"]];
NSPredicate *inNotInPredicate = [NSPredicate predicateWithFormat:@"type IN %@ AND NOT (type IN %@)", @[@"park"], @[@"neighbourhood", @"test"]];
NSPredicate *typePredicate = [NSPredicate predicateWithFormat:@"%K == %@", @"$type", @"Feature"];
NSPredicate *idPredicate = [NSPredicate predicateWithFormat:@"%K == %@", @"$id", @"1234123"];
NSPredicate *specialCharsPredicate = [NSPredicate predicateWithFormat:@"%K == %@", @"ty-’pè", @"sŒm-ethįng"];
NSPredicate *booleanPredicate = [NSPredicate predicateWithFormat:@"cluster != YES"];
NSPredicate *nilEqualsPredicate = [NSPredicate predicateWithFormat:@"type == %@", nil];
NSPredicate *nilNotEqualsPredicate = [NSPredicate predicateWithFormat:@"type != %@", nil];
return @[
equalPredicate,
notEqualPredicate,
greaterThanPredicate,
greaterThanOrEqualToPredicate,
lessThanOrEqualToPredicate,
lessThanPredicate,
inPredicate,
notInPredicate,
inNotInPredicate,
typePredicate,
idPredicate,
specialCharsPredicate,
booleanPredicate,
nilEqualsPredicate,
nilNotEqualsPredicate
];
}
- (void)testAllPredicates
{
for (NSPredicate *predicate in self.predicates) {
layer.predicate = predicate;
XCTAssertEqualObjects(layer.predicate, predicate);
}
[self.mapView.style addLayer:layer];
}
- (void)testContainsPredicate
{
// core does not have a "contains" filter but we can achieve the equivalent by creating an `mbgl::style::InFilter`
// and searching the value for the key
NSPredicate *expectedPredicate = [NSPredicate predicateWithFormat:@"park IN %@", @[@"park", @"neighbourhood"]];
NSPredicate *containsPredicate = [NSPredicate predicateWithFormat:@"%@ CONTAINS %@", @[@"park", @"neighbourhood"], @"park"];
layer.predicate = containsPredicate;
XCTAssertEqualObjects(layer.predicate, expectedPredicate);
[self.mapView.style addLayer:layer];
}
- (void)testBetweenPredicate
{
// core does not have a "between" filter but we can achieve the equivalent by creating a set of greater than or equal / less than or equal
// filters for the lower and upper bounds (inclusive)
NSPredicate *expectedPredicate = [NSCompoundPredicate predicateWithFormat:@"%K >= 2 AND %K <= 3", @"stroke-width", @"stroke-width"];
NSPredicate *betweenPredicate = [NSPredicate predicateWithFormat:@"%K BETWEEN %@", @"stroke-width", @[@2.0, @3.0]];
layer.predicate = betweenPredicate;
XCTAssertEqualObjects(layer.predicate, expectedPredicate);
[self.mapView.style addLayer:layer];
}
- (void)testTruePredicate
{
// This comes out of the class cluster as an NSTruePredicate and it is equal to `[NSPredicate predicateWithValue:YES]`
NSPredicate *truePredicate = [NSPredicate predicateWithFormat:@"TRUEPREDICATE"];
layer.predicate = truePredicate;
XCTAssertEqualObjects(layer.predicate.description, truePredicate.description);
[self.mapView.style addLayer:layer];
}
- (void)testFalsePredicate
{
// This comes out of the class cluster as an NSFalsePredicate and it is equal to `[NSPredicate predicateWithValue:NO]`
NSPredicate *falsePredicate = [NSPredicate predicateWithFormat:@"FALSEPREDICATE"];
layer.predicate = falsePredicate;
XCTAssertEqualObjects(layer.predicate.description, falsePredicate.description);
[self.mapView.style addLayer:layer];
}
- (void)testIntermittentEncoding
{
NSPredicate *specialCharsPredicate = [NSPredicate predicateWithFormat:@"%K == %@", @"ty-’pè", @"sŒm-ethįng"];
layer.predicate = specialCharsPredicate;
NSComparisonPredicate *getPredicate = (NSComparisonPredicate *)layer.predicate;
mbgl::style::EqualsFilter filter = layer.predicate.mgl_filter.get<mbgl::style::EqualsFilter>();
id objcKey = getPredicate.leftExpression.keyPath;
id cppKey = @(filter.key.c_str());
id objcValue = mbgl::Value::visit(getPredicate.rightExpression.mgl_filterValue, ValueEvaluator());
id cppValue = mbgl::Value::visit(filter.value, ValueEvaluator());
XCTAssertEqualObjects(objcKey, cppKey);
XCTAssertEqualObjects(objcValue, cppValue);
[self.mapView.style addLayer:layer];
}
- (void)testNestedFilters
{
NSPredicate *equalPredicate = [NSPredicate predicateWithFormat:@"type == 'neighbourhood'"];
NSPredicate *notEqualPredicate = [NSPredicate predicateWithFormat:@"type != 'park'"];
NSPredicate *allPredicate = [NSCompoundPredicate andPredicateWithSubpredicates:@[equalPredicate, notEqualPredicate]];
NSPredicate *anyPredicate = [NSCompoundPredicate orPredicateWithSubpredicates:@[equalPredicate, notEqualPredicate]];
layer.predicate = allPredicate;
XCTAssertEqualObjects(layer.predicate, allPredicate);
layer.predicate = anyPredicate;
XCTAssertEqualObjects(layer.predicate, anyPredicate);
[self.mapView.style addLayer:layer];
}
- (void)testAndPredicates
{
NSPredicate *predicate = [NSCompoundPredicate andPredicateWithSubpredicates:self.predicates];
layer.predicate = predicate;
XCTAssertEqualObjects(predicate, layer.predicate);
[self.mapView.style addLayer:layer];
}
- (void)testOrPredicates
{
NSPredicate *predicate = [NSCompoundPredicate orPredicateWithSubpredicates:self.predicates];
layer.predicate = predicate;
XCTAssertEqualObjects(predicate, layer.predicate);
[self.mapView.style addLayer:layer];
}
- (void)testNotAndPredicates
{
NSPredicate *predicates = [NSCompoundPredicate andPredicateWithSubpredicates:self.predicates];
NSCompoundPredicate *predicate = [NSCompoundPredicate notPredicateWithSubpredicate:predicates];
layer.predicate = predicate;
XCTAssertEqualObjects(predicate, layer.predicate);
[self.mapView.style addLayer:layer];
}
- (void)testNotOrPredicates
{
NSPredicate *predicates = [NSCompoundPredicate orPredicateWithSubpredicates:self.predicates];
NSCompoundPredicate *predicate = [NSCompoundPredicate notPredicateWithSubpredicate:predicates];
layer.predicate = predicate;
XCTAssertEqualObjects(predicate, layer.predicate);
[self.mapView.style addLayer:layer];
}
@end
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