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72 lines
3.1 KiB
72 lines
3.1 KiB
////////////////////////////////////////////////////////////////////////////
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//
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// Copyright 2016 Realm Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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////////////////////////////////////////////////////////////////////////////
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#import "RLMTestCase.h"
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#import "RLMPredicateUtil.hpp"
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@interface PredicateUtilTests : RLMTestCase
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@end
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@implementation PredicateUtilTests
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- (void)testVisitingAllExpressionTypes {
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auto testPredicate = [&](NSPredicate *predicate, size_t expectedExpressionCount) {
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size_t visitCount = 0;
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auto visitExpression = [&](NSExpression *expression) {
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visitCount++;
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return expression;
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};
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NSPredicate *transformedPredicate = transformPredicate(predicate, visitExpression);
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XCTAssertEqualObjects(predicate, transformedPredicate);
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XCTAssertEqual(visitCount, expectedExpressionCount);
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};
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auto testPredicateString = [=](NSString *predicateString, size_t expectedExpressionCount) {
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return testPredicate([NSPredicate predicateWithFormat:predicateString], expectedExpressionCount);
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};
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testPredicateString(@"TRUEPREDICATE", 0);
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testPredicateString(@"A == B", 2);
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testPredicateString(@"A == B AND C == 1", 4);
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testPredicateString(@"A.@count == 2", 2);
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testPredicateString(@"SUBQUERY(collection, $variable, $variable.property == 1).@count > 2", 9);
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testPredicateString(@"A IN {1, 2, 3}", 5);
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testPredicateString(@"A IN B UNION C", 4);
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testPredicateString(@"A IN B INTERSECT C", 4);
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testPredicateString(@"A IN B MINUS C", 4);
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if ([NSExpression respondsToSelector:@selector(expressionForConditional:trueExpression:falseExpression:)]) {
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// Only test conditional predicates on platforms that support them (i.e. iOS 9 and later).
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testPredicateString(@"TERNARY(TRUEPREDICATE, A, B) == 1", 4);
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}
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testPredicateString(@"ANYKEY == 1", 2);
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testPredicateString(@"SELF == 1", 2);
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testPredicate([NSPredicate predicateWithBlock:^(id, NSDictionary*) { return NO; }], 0);
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auto block = ^(id, NSArray *, NSMutableDictionary *) {
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return @"Hello";
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};
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testPredicate([NSComparisonPredicate predicateWithLeftExpression:[NSExpression expressionForBlock:block arguments:nil]
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rightExpression:[NSExpression expressionForConstantValue:@"hello"]
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modifier:NSDirectPredicateModifier
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type:NSEqualToPredicateOperatorType
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options:0], 2);
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}
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@end
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