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| 1 | +/* |
| 2 | + * Copyright (c) Meta Platforms, Inc. and affiliates. |
| 3 | + * All rights reserved. |
| 4 | + * |
| 5 | + * This source code is licensed under the BSD-style license found in the |
| 6 | + * LICENSE file in the root directory of this source tree. |
| 7 | + */ |
| 8 | + |
| 9 | +#import "ResourceTestCase.h" |
| 10 | + |
| 11 | +#import <CoreML/CoreML.h> |
| 12 | + |
| 13 | +static MLMultiArray *DummyMultiArrayForFeature(MLFeatureDescription *feature, NSError **error) { |
| 14 | + MLMultiArray *array = [[MLMultiArray alloc] initWithShape:feature.multiArrayConstraint.shape |
| 15 | + dataType:feature.multiArrayConstraint.dataType == MLMultiArrayDataTypeInt32 ? MLMultiArrayDataTypeInt32 : MLMultiArrayDataTypeDouble |
| 16 | + error:error]; |
| 17 | + for (auto index = 0; index < array.count; ++index) { |
| 18 | + array[index] = feature.multiArrayConstraint.dataType == MLMultiArrayDataTypeInt32 ? @1 : @1.0; |
| 19 | + } |
| 20 | + return array; |
| 21 | +} |
| 22 | + |
| 23 | +static NSMutableDictionary *DummyInputsForModel(MLModel *model, NSError **error) { |
| 24 | + NSMutableDictionary *inputs = [NSMutableDictionary dictionary]; |
| 25 | + NSDictionary<NSString *, MLFeatureDescription *> *inputDescriptions = model.modelDescription.inputDescriptionsByName; |
| 26 | + |
| 27 | + for (NSString *inputName in inputDescriptions) { |
| 28 | + MLFeatureDescription *feature = inputDescriptions[inputName]; |
| 29 | + |
| 30 | + switch (feature.type) { |
| 31 | + case MLFeatureTypeMultiArray: { |
| 32 | + MLMultiArray *array = DummyMultiArrayForFeature(feature, error); |
| 33 | + inputs[inputName] = [MLFeatureValue featureValueWithMultiArray:array]; |
| 34 | + break; |
| 35 | + } |
| 36 | + case MLFeatureTypeInt64: |
| 37 | + inputs[inputName] = [MLFeatureValue featureValueWithInt64:1]; |
| 38 | + break; |
| 39 | + case MLFeatureTypeDouble: |
| 40 | + inputs[inputName] = [MLFeatureValue featureValueWithDouble:1.0]; |
| 41 | + break; |
| 42 | + case MLFeatureTypeString: |
| 43 | + inputs[inputName] = [MLFeatureValue featureValueWithString:@"1"]; |
| 44 | + break; |
| 45 | + default: |
| 46 | + break; |
| 47 | + } |
| 48 | + } |
| 49 | + return inputs; |
| 50 | +} |
| 51 | + |
| 52 | +@interface CoreMLTests : ResourceTestCase |
| 53 | +@end |
| 54 | + |
| 55 | +@implementation CoreMLTests |
| 56 | + |
| 57 | ++ (NSArray<NSString *> *)directories { |
| 58 | + return @[@"Resources"]; |
| 59 | +} |
| 60 | + |
| 61 | ++ (NSDictionary<NSString *, BOOL (^)(NSString *)> *)predicates { |
| 62 | + return @{ @"model" : ^BOOL(NSString *filename) { |
| 63 | + return [filename hasSuffix:@".mlpackage"]; |
| 64 | + }}; |
| 65 | +} |
| 66 | + |
| 67 | ++ (NSDictionary<NSString *, void (^)(XCTestCase *)> *)dynamicTestsForResources:(NSDictionary<NSString *, NSString *> *)resources { |
| 68 | + NSString *modelPath = resources[@"model"]; |
| 69 | + |
| 70 | + return @{ |
| 71 | + @"prediction" : ^(XCTestCase *testCase) { |
| 72 | + NSError *error = nil; |
| 73 | + NSURL *compiledModelURL = [MLModel compileModelAtURL:[NSURL fileURLWithPath:modelPath] error:&error]; |
| 74 | + if (error || !compiledModelURL) { |
| 75 | + XCTFail(@"Failed to compile model: %@", error.localizedDescription); |
| 76 | + return; |
| 77 | + } |
| 78 | + MLModel *model = [MLModel modelWithContentsOfURL:compiledModelURL error:&error]; |
| 79 | + if (error || !model) { |
| 80 | + XCTFail(@"Failed to load model: %@", error.localizedDescription); |
| 81 | + return; |
| 82 | + } |
| 83 | + NSMutableDictionary *inputs = DummyInputsForModel(model, &error); |
| 84 | + if (error || !inputs) { |
| 85 | + XCTFail(@"Failed to prepare inputs: %@", error.localizedDescription); |
| 86 | + return; |
| 87 | + } |
| 88 | + MLDictionaryFeatureProvider *featureProvider = [[MLDictionaryFeatureProvider alloc] initWithDictionary:inputs error:&error]; |
| 89 | + if (error || !featureProvider) { |
| 90 | + XCTFail(@"Failed to create input provider: %@", error.localizedDescription); |
| 91 | + return; |
| 92 | + } |
| 93 | + [testCase measureWithMetrics:@[[XCTClockMetric new], [XCTMemoryMetric new]] |
| 94 | + block:^{ |
| 95 | + NSError *error = nil; |
| 96 | + id<MLFeatureProvider> prediction = [model predictionFromFeatures:featureProvider error:&error]; |
| 97 | + if (error || !prediction) { |
| 98 | + XCTFail(@"Prediction failed: %@", error.localizedDescription); |
| 99 | + } |
| 100 | + }]; |
| 101 | + } |
| 102 | + }; |
| 103 | +} |
| 104 | + |
| 105 | +@end |
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