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/*
* Copyright 2017 Google
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#import <Foundation/Foundation.h>
#import <XCTest/XCTest.h>
#import "FPruneForest.h"
#import "FPath.h"
@interface FPruneForestTest : XCTestCase
@end
@implementation FPruneForestTest
- (void) testEmptyDoesNotAffectAnyPaths {
FPruneForest *forest = [FPruneForest empty];
XCTAssertFalse([forest affectsPath:[FPath empty]]);
XCTAssertFalse([forest affectsPath:[FPath pathWithString:@"foo"]]);
}
- (void) testPruneAffectsPath {
FPruneForest *forest = [FPruneForest empty];
forest = [forest prunePath:[FPath pathWithString:@"foo/bar"]];
forest = [forest keepPath:[FPath pathWithString:@"foo/bar/baz"]];
XCTAssertTrue([forest affectsPath:[FPath pathWithString:@"foo"]]);
XCTAssertFalse([forest affectsPath:[FPath pathWithString:@"baz"]]);
XCTAssertFalse([forest affectsPath:[FPath pathWithString:@"baz/bar"]]);
XCTAssertTrue([forest affectsPath:[FPath pathWithString:@"foo/bar"]]);
XCTAssertTrue([forest affectsPath:[FPath pathWithString:@"foo/bar/baz"]]);
XCTAssertTrue([forest affectsPath:[FPath pathWithString:@"foo/bar/qux"]]);
}
- (void) testPruneAnythingWorks {
FPruneForest *empty = [FPruneForest empty];
XCTAssertFalse([empty prunesAnything]);
XCTAssertTrue([[empty prunePath:[FPath pathWithString:@"foo"]] prunesAnything]);
XCTAssertFalse([[[empty prunePath:[FPath pathWithString:@"foo/bar"]] keepPath:[FPath pathWithString:@"foo"]] prunesAnything]);
XCTAssertTrue([[[empty prunePath:[FPath pathWithString:@"foo"]] keepPath:[FPath pathWithString:@"foo/bar"]] prunesAnything]);
}
- (void) testKeepUnderPruneWorks {
FPruneForest *forest = [FPruneForest empty];
forest = [forest prunePath:[FPath pathWithString:@"foo/bar"]];
forest = [forest keepPath:[FPath pathWithString:@"foo/bar/baz"]];
forest = [forest keepAll:[NSSet setWithArray:@[@"qux", @"quu"]] atPath:[FPath pathWithString:@"foo/bar"]];
}
- (void) testPruneUnderKeepThrows {
FPruneForest *forest = [FPruneForest empty];
forest = [forest prunePath:[FPath pathWithString:@"foo"]];
forest = [forest keepPath:[FPath pathWithString:@"foo/bar"]];
XCTAssertThrows([forest prunePath:[FPath pathWithString:@"foo/bar/baz"]]);
NSSet *children = [NSSet setWithArray:@[@"qux", @"quu"]];
XCTAssertThrows([forest pruneAll:children atPath:[FPath pathWithString:@"foo/bar"]]);
}
- (void) testChildKeepsPruneInfo {
FPruneForest *forest = [FPruneForest empty];
forest = [forest keepPath:[FPath pathWithString:@"foo/bar"]];
XCTAssertTrue([[forest child:@"foo"] affectsPath:[FPath pathWithString:@"bar"]]);
XCTAssertTrue([[[forest child:@"foo"] child:@"bar"] affectsPath:[FPath pathWithString:@""]]);
XCTAssertTrue([[[[forest child:@"foo"] child:@"bar"] child:@"baz"] affectsPath:[FPath pathWithString:@""]]);
forest = [[FPruneForest empty] prunePath:[FPath pathWithString:@"foo/bar"]];
XCTAssertTrue([[forest child:@"foo"] affectsPath:[FPath pathWithString:@"bar"]]);
XCTAssertTrue([[[forest child:@"foo"] child:@"bar"] affectsPath:[FPath pathWithString:@""]]);
XCTAssertTrue([[[[forest child:@"foo"] child:@"bar"] child:@"baz"] affectsPath:[FPath pathWithString:@""]]);
XCTAssertFalse([[forest child:@"non-existent"] affectsPath:[FPath pathWithString:@""]]);
}
- (void) testShouldPruneWorks {
FPruneForest *forest = [FPruneForest empty];
forest = [forest prunePath:[FPath pathWithString:@"foo"]];
forest = [forest keepPath:[FPath pathWithString:@"foo/bar/baz"]];
XCTAssertTrue([forest shouldPruneUnkeptDescendantsAtPath:[FPath pathWithString:@"foo"]]);
XCTAssertTrue([forest shouldPruneUnkeptDescendantsAtPath:[FPath pathWithString:@"foo/bar"]]);
XCTAssertFalse([forest shouldPruneUnkeptDescendantsAtPath:[FPath pathWithString:@"foo/bar/baz"]]);
XCTAssertFalse([forest shouldPruneUnkeptDescendantsAtPath:[FPath pathWithString:@"qux"]]);
}
@end
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