tests.models package

Submodules

tests.models.test_fields module

Tests for custom fields.

class tests.models.test_fields.ChoiceArrayFieldTestCase(methodName='runTest')

Bases: django.test.testcases.TestCase

Tests for the ChoiceArrayField model.

CHOICES = (('C1', 'First Choice'), ('C2', 'Second Choice'), ('C3', 'Third Choice'))

setUp()

Adds a ChoiceArrayField instance to the tests’ contexts. For more information see unittest’s setUp() method.

test_formfield_method()

Tests that formfield() method returns the expected value.

tests.models.test_image module

class tests.models.test_image.ImageTestCase(methodName='runTest')

Bases: django.test.testcases.TestCase

Tests for the Image model.

HEADER_FIELDS = ['uid', 'number', 'date', 'time']

NON_HEADER_FIELDS = ['id', 'dcm', 'created', 'modified', 'series']

setUp()

Adds the created instances to the tests’ contexts. For more information see unittest’s setUp() method.

classmethod setUpTestData()

Creates instances to test the Image model. For more information see Django’s TestCase documentation.

test_dcm_extension_validation()

Tests that only .dcm files may be used to instantiate an Image instance.

test_fields_blank_and_null_configuration()

Every Image instance must have all of their fields set. id, created, and modified my be blank in forms.

test_get_absolute_url()

Tests the Image model’s get_absolute_url method.

test_get_b_value()

Tests the get_b_value() method. Should return the B-value for DWI images and None for non-DWI images. TODO: Figure out why B-value seems to always be set to 0 for the DWI images.

test_get_data()

Tests the django_dicom.models.image.Image.get_data() method returns the expected NumPy array.

test_get_header_fields()

Tests that the get_header_fields() returns the correct fields. The expected fields should be set as this TestCase’s HEADER_FIELDS class attribute.

test_get_header_keyword()

Tests that the get_header_keyword() method returns the keyword defined in the Image class’s FIELD_TO_HEADER dictionary, or a CamelCase version of the field name if no such definition exists.

test_gradient_diretion()

Tests that the gradient direction can be read for SIEMENS DICOM images. For more information see: https://na-mic.org/wiki/NAMIC_Wiki:DTI:DICOM_for_DWI_and_DTI#Private_vendor:_Siemens.

TODO: Extend to other vendors.

test_header()

Tests that the _header class attribute is properly updated by the header property.

test_is_dicom_entity()

Tests that the created Image instance inherits from DicomEntity.

test_is_header_field()

Tests that the is_header_field() method returns the correct boolean result for the different fields. Relies on this TestCase’s defintion for the NON_HEADER_FIELDS class attribute.

test_number_vebose_name()

Test the number field vebose name.

test_read_file_configuration()

By default, the django_dicom.models.image.Image.read_file() method is supposed to read the entire image (including the pixel array).

test_read_file_method_return_type()

Tests that the read_file() method return a FileDataset instance.

test_read_file_with_only_headers()

Tests the django_dicom.models.image.Image.read_file() method header_only setting.

test_read_header()

Tests that the read_header() method returns the expected HeaderInformation instance.

test_slice_timing()

Tests that the slice timing can be read for SIEMENS DICOM images. For more information see: https://en.wikibooks.org/wiki/SPM/Slice_Timing#Siemens_scanners.

TODO: Extend to other vendors.

test_string()

Tests that the instance’s __str__() method returns its UID. For more information see Django’s str method documentation.

test_uid_is_unique()

Validates that the UID field is unique.

test_uid_max_length()

DICOM’s SOPInstanceUID attribute may only be as long as 64 characters ( see the Unique Identifier (UI) value-representation specification).

test_uid_validation()

An Image instance UID field may only be composed of dots and digits.

test_uid_vebose_name()

Test the UID field vebose name.

test_update_fields_from_header()

Tests that update_fields_from_header() method returns the expected values. This test relies on the created instance’s fields containing the expected values beforehand.

tests.models.test_patient module

class tests.models.test_patient.PatientTestCase(methodName='runTest')

Bases: django.test.testcases.TestCase

Tests for the Patient model.

setUp()

Adds the created instances to the tests’ contexts. For more information see unittest’s setUp() method.

classmethod setUpTestData()

Creates instances to be used in the tests. For more information see Django’s TestCase documentation.

test_date_of_birth_blank_and_null()

The Patient’s Birth Date attribute may be empty (type 2 data element).

test_get_absolute_url()

Tests the get_absolute_url() method returns the expeted url. More information

test_get_full_name()

Tests that the get_full_name() method returns “{given_name} {family_name}”.

test_name_blank_and_null()

Tests that the name fields are blankable and nullable according to the Patient’s Name DICOM attribute definition (type 2 data element).

test_name_max_length()

Tests that the name fields has the expected max_length (see the Person Name (PN) value-representation specification).

test_sex_blank_and_null()

The Patient’s Sex attribute may be empty (type 2 data element).

test_sex_max_length()

Tests that the sex field has the expected max_length.

test_string()

Tests that an __str__() method returns its UID. For more information see Django’s str method documentation.

test_uid_blank_and_null()

Every Patient instance must have a UID.

test_uid_is_unique()

Validates that the UID field is unique.

test_uid_max_length()

DICOM’s Patient ID attribute may only be as long as 64 characters ( see the Long String (LO) value-representation specification).

test_uid_verbose_name()

Test the UID field vebose name.

test_update_fields_from_header()

Tests that update_fields_from_header() method returns the expected values. This test relies on the created instance’s fields containing the expected values beforehand.

test_update_patient_name()

Tests patient name update according to the DICOM header Patient’s Name (PN) data element fields.

tests.models.test_series module

class tests.models.test_series.SeriesTestCase(methodName='runTest')

Bases: django.test.testcases.TestCase

Tests for the Series model.

setUp()

Adds the created instances to the tests’ contexts. For more information see unittest’s setUp() method.

classmethod setUpTestData()

Creates instances to be used in the tests. For more information see Django’s TestCase documentation.

test_body_part_examined_blank_and_null()

The Body Part Examined attribute is optional (type 3 data element).

test_body_part_examined_max_length()

DICOM’s Body Part Examined attribute may only be as long as 16 characters ( see the Code String (CS) value-representation specification).

test_date_blank_and_null()

The Series Date attribute is optional (type 3 data element).

test_description_blank_and_null()

The Series Description attribute may be empty (type 2 data element).

test_description_max_length()

DICOM’s Series Description attribute may only be as long as 64 characters ( see the Long String (LO) value-representation specification).

test_description_vebose_name()

Test the description field vebose name.

test_device_serial_number_blank_and_null()

The Device Serial Number attribute is optional (type 3 data element).

test_device_serial_number_max_length()

DICOM’s Device Serial Number attribute may only be as long as 64 characters ( see the Long String (LO) value-representation specification).

test_echo_time_blank_and_null()

The Echo Time attribute may be empty (type 2 data element).

test_echo_time_positive_float_validation()

The Echo Time attribute measures time in milliseconds and therefore must be positive.

test_flip_angle_blank_and_null()

The Flip Angle attribute is optional (type 3 data element).

test_get_absolute_url()

Tests the Series model’s get_absolute_url method.

test_get_data()

Tests retrieving the series data from the model. In this case we only have one instance for each series so the third dimension’s size will be 1.

test_get_gradient_directions()

Tests the get_gradient_directions() method returns the expected value for the given series.

test_get_path()

Tests the get_path() method returns the series base directory.

test_get_scanning_sequence_display()

Tests the get_scanning_sequence_display() method returns the expected value for the given series.

test_get_sequence_variant_display()

Tests the get_sequence_variant_display() method returns the expected value for the given series.

test_institution_name_blank_and_null()

The Institution Name attribute is optional (type 3 data element).

test_institution_name_max_length()

DICOM’s Institution Name attribute may only be as long as 64 characters ( see the Long String (LO) value-representation specification).

test_inversion_time_blank_and_null()

The Inversion Time attribute may be empty (type 2C data element).

test_inversion_time_positive_float_validation()

The Inversion Time attribute measures time in milliseconds and therefore must be positive.

test_magnetic_field_strengh_blank_and_null()

The Magnetic Field Strength attribute is optional (type 3 data element).

test_magnetic_field_strength_positive_float_validation()

The Magnetic Field Strength attribute measures field strength in Tesla (T) and therefore must be positive.

test_manufacturer_blank_and_null()

The Manufacturer attribute may be empty (type 2 data element).

test_manufacturer_max_length()

DICOM’s Manufacturer attribute may only be as long as 64 characters ( see the Long String (LO) value-representation specification).

test_manufacturer_model_name_blank_and_null()

The Manufacturer’s Model Name attribute is optional (type 3 data element).

test_manufacturer_model_name_max_length()

DICOM’s Manufacturer’s Model Name attribute may only be as long as 64 characters ( see the Long String (LO) value-representation specification).

test_modality_blank_and_null()

The Modality attribute may not be empty (type 1 data element).

test_modality_choices()

Modality is a Code String (CS) data element and therfores has a limited number of possible values.

test_modality_max_length()

DICOM’s Modality attribute may only be as long as 10 characters.

test_mr_acquisition_type_choices()

MR Acquisition Type is a Code String (CS) data element and therfores has a limited number of possible values.

test_mr_acquisition_type_max_length()

DICOM’s MR Acquisition Type attribute may only be as long as 2 characters.

test_number_blank_and_null()

The Series Number attribute may be empty (type 2 data element).

test_number_vebose_name()

Test the number field vebose name.

test_patient_blank_and_null()

DICOM’s Patient attributes are all either conditionally required or nullable, and therefore it is possible for the patient relationship to be unused.

test_patient_position_blank_and_null()

The Patient Position attribute may be empty (type 2C data element).

test_patient_position_choices()

Patient Position is a Code String (CS) data element and therfores has a limited number of possible values.

test_patient_position_max_length()

DICOM’s Patient Position attribute may only be as long as 4 characters.

test_pixel_spacing_blank_and_null()

The Pixel Spacing attribute may not be empty (type 1 data element).

test_pixel_spacing_positive_float_validation()

The Pixel Spacing attribute specifies distances in millimeters, and therefore must be positive.

test_pixel_spacing_size()

The Pixel Spacing attribute specifies the distance between the centers of two adjacent pixels in the row (X) and column (Y) dimensions.

test_protocol_name_blank_and_null()

The Protocol Name attribute is optional (type 3 data element).

test_protocol_name_max_length()

DICOM’s Protocol Name attribute may only be as long as 64 characters ( see the Long String (LO) value-representation specification).

test_repetition_time_blank_and_null()

The Repetition Time attribute may be empty (type 2C data element).

test_repetition_time_positive_float_validation()

The Repetition Time attribute measures time in milliseconds and therefore must be positive.

test_scanning_sequence_base_choices()

Scanning Sequence is a Code String (CS) data element and therfores has a limited number of possible values.

test_scanning_sequence_base_max_length()

Scanning Sequence definitions are 2 characters long.

test_scanning_sequence_blank_and_null()

The Scanning Sequence attribute may not be empty (type 1 data element).

test_scanning_sequence_size()

The Scanning Sequence attribute has five possible values, with some of them actually being mutually exclusive. We’re limiting to five in any case.

test_sequence_variant_base_choices()

Sequence Variant is a Code String (CS) data element and therfores has a limited number of possible values.

test_sequence_variant_base_max_length()

Sequence Variant definitions can be 4 characters long.

test_sequence_variant_blank_and_null()

The Sequence Variant attribute may not be empty (type 1 data element).

test_sequence_variant_size()

The Sequence Variant attribute has eight possible values, with some of them actually being mutually exclusive and also including NONE. We’re limiting to six just in case.

test_series_ordering()

Validate the ordering of the Series model.

test_series_verbose_name_plural()

Validate the verbose name plural (“Series”) of the Series model.

test_slice_thickness_blank_and_null()

The Slice Thickness attribute may be empty (type 2 data element).

test_slice_thickness_positive_float_validation()

The Slice Thickness attribute measures thickness in millimeters and therefore must be positive.

test_string()

Tests that an Series instance’s str method returns its UID. For more information see Django’s str method documentation.

test_study_blank_and_null()

The Study Instance UID attribute may not be empty (type 1 data element) and therefore every series must have a study.

test_time_blank_and_null()

The Series Time attribute is optional (type 3 data element).

test_uid_blank_and_null()

Every Series instance must have a UID.

test_uid_is_unique()

Validates that the UID field is unique.

test_uid_max_length()

DICOM’s SeriesInstanceUID attribute may only be as long as 64 characters ( see the Unique Identifier (UI) value-representation specification).

test_uid_validation()

An Series instance UID field may only be composed of dots and digits.

test_uid_verbose_name()

Test the UID field vebose name.

test_update_fields_from_header()

Tests that update_fields_from_header() method returns the expected values. This test relies on the created instance’s fields containing the expected values beforehand.

tests.models.test_study module

class tests.models.test_study.SeriesTestCase(methodName='runTest')

Bases: django.test.testcases.TestCase

Tests for the Study model.

setUp()

Adds the created instances to the tests’ contexts. For more information see unittest’s setUp() method.

classmethod setUpTestData()

Creates instances to be used in the tests. For more information see Django’s TestCase documentation.

test_date_blank_and_null()

The Study Date attribute may be empty (type 2 data element).

test_description_blank_and_null()

The Study Description attribute is optional (type 3 data element).

test_description_max_length()

DICOM’s Study Description attribute may only be as long as 64 characters ( see the Long String (LO) value-representation specification).

test_get_absolute_url()

Tests the get_absolute_url() method returns the expeted url. For more information regarding get_absolute_url see the Django documentation.

test_string()

Tests that an __str__() method returns its UID. For more information see Django’s str method documentation.

test_study_verbose_name_plural()

Validate the verbose name plural (“Studies”) of the Study model.

test_time_blank_and_null()

The Study Time attribute may be empty (type 2 data element).

test_uid_blank_and_null()

Every Study instance must have a UID.

test_uid_is_unique()

Validates that the UID field is unique.

test_uid_max_length()

DICOM’s Study Instance UID attribute may only be as long as 64 characters ( see the Unique Identifier (UI) value-representation specification).

test_uid_validation()

An Study instance UID field may only be composed of dots and digits.

test_uid_vebose_name()

Test the UID field vebose name.

test_update_fields_from_header()

Tests that update_fields_from_header() method returns the expected values. This test relies on the created instance’s fields containing the expected values beforehand.

Module contents