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                import torchio as tio  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                from ...utils import TorchioTestCase  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                class TestEnsureShapeMultiple(TorchioTestCase):  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    def test_bad_method(self):  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        with self.assertRaises(ValueError):  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            tio.EnsureShapeMultiple(1, method='bad')  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    def test_pad(self):  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        sample_t1 = self.sample_subject.t1  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        assert sample_t1.shape == (1, 10, 20, 30)  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        transform = tio.EnsureShapeMultiple(4, method='pad')  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        transformed = transform(sample_t1)  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        assert transformed.shape == (1, 12, 20, 32)  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    def test_crop(self):  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        sample_t1 = self.sample_subject.t1  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        assert sample_t1.shape == (1, 10, 20, 30)  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        transform = tio.EnsureShapeMultiple(4, method='crop')  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        transformed = transform(sample_t1)  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        assert transformed.shape == (1, 8, 20, 28)  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                    def test_2d(self):  | 
            
            
                                                        
            
                                    
            
            
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                        sample_t1 = self.sample_subject.t1  | 
            
            
                                                        
            
                                    
            
            
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                        sample_2d = sample_t1.data[..., :1]  | 
            
            
                                                        
            
                                    
            
            
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                        assert sample_2d.shape == (1, 10, 20, 1)  | 
            
            
                                                        
            
                                    
            
            
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                        transform = tio.EnsureShapeMultiple(4, method='crop')  | 
            
            
                                                        
            
                                    
            
            
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                        transformed = transform(sample_2d)  | 
            
            
                                                        
            
                                    
            
            
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                        assert transformed.shape == (1, 8, 20, 1)  | 
            
            
                                                        
            
                                    
            
            
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