def test_gsf_swath_summary_save_create(gsf_test_data_03_06: GsfDatafile):
file_handle = c_int(0)
swath_summary_id = c_gsfDataID()
swath_summary_id.recordID = RecordType.GSF_RECORD_SWATH_BATHY_SUMMARY
record = c_gsfRecords()
record.summary = c_gsfSwathBathySummary(
start_time=SUMMARY_RECORD.start_time,
end_time=SUMMARY_RECORD.end_time,
min_latitude=SUMMARY_RECORD.min_lat,
max_latitude=SUMMARY_RECORD.max_lat,
min_longitude=SUMMARY_RECORD.min_long,
max_longitude=SUMMARY_RECORD.max_long,
min_depth=SUMMARY_RECORD.min_depth,
max_depth=SUMMARY_RECORD.max_depth,
)
return_value = gsfpy.bindings.gsfOpen(
os.fsencode(str(gsf_test_data_03_06.path)),
FileMode.GSF_CREATE,
byref(file_handle),
)
assert_that(return_value).is_zero()
bytes_written = gsfpy.bindings.gsfWrite(file_handle,
byref(swath_summary_id),
byref(record))
assert_that(bytes_written).is_equal_to(SUMMARY_RECORD_LENGTH)
return_value = gsfpy.bindings.gsfClose(file_handle)
assert_that(return_value).is_zero()
# Read it back out and check that it matches expected values
file_handle = c_int(0)
gsf_read_data_id = c_gsfDataID()
gsf_read_data_id.recordID = RecordType.GSF_RECORD_SWATH_BATHYMETRY_PING
written_record = c_gsfRecords()
return_value = gsfpy.bindings.gsfOpen(
os.fsencode(str(gsf_test_data_03_06.path)),
FileMode.GSF_READONLY,
byref(file_handle),
)
assert_that(return_value).is_zero()
bytes_read = gsfpy.bindings.gsfRead(
file_handle,
RecordType.GSF_RECORD_SWATH_BATHY_SUMMARY,
byref(gsf_read_data_id),
byref(written_record),
)
assert_that(bytes_read).is_equal_to(SUMMARY_RECORD_LENGTH)
return_value = gsfpy.bindings.gsfClose(file_handle)
assert_that(return_value).is_zero()
assert_that(SummaryRecord.from_summary(
written_record.summary)).is_equal_to(SUMMARY_RECORD)
def test_gsfCopyRecords_success(gsf_test_data_03_06):
"""
Open the test GSF file, read a record, then copy the contents to
a new gsfRecords structure.
"""
# Arrange
file_handle = c_int(0)
data_id = c_gsfDataID()
source_records = c_gsfRecords()
target_records = c_gsfRecords()
# Act
return_value = gsfpy.bindings.gsfOpen(
os.fsencode(str(gsf_test_data_03_06.path)),
FileMode.GSF_READONLY,
byref(file_handle),
)
assert_that(return_value).is_zero()
bytes_read = gsfpy.bindings.gsfRead(
file_handle,
RecordType.GSF_RECORD_COMMENT,
byref(data_id),
byref(source_records),
)
assert_that(bytes_read).is_equal_to(156)
return_value = gsfpy.bindings.gsfCopyRecords(
pointer(target_records), pointer(source_records)
)
assert_that(return_value).is_zero()
return_value = gsfpy.bindings.gsfClose(file_handle)
assert_that(return_value).is_zero()
# Assert
with soft_assertions():
assert_that(target_records.comment.comment_time.tv_sec).is_equal_to(
source_records.comment.comment_time.tv_sec
)
assert_that(target_records.comment.comment_time.tv_nsec).is_equal_to(
source_records.comment.comment_time.tv_nsec
)
assert_that(target_records.comment.comment_length).is_equal_to(
source_records.comment.comment_length
)
assert_that(addressof(target_records.comment.comment)).is_not_equal_to(
addressof(source_records.comment.comment)
)
assert_that(string_at(target_records.comment.comment)).is_equal_to(
string_at(source_records.comment.comment)
)
def test_gsfWrite_success(tmp_path):
"""
Write a single comment record to a new GSF file
"""
# Arrange
file_handle = c_int(0)
data_id = c_gsfDataID()
data_id.recordID = RecordType.GSF_RECORD_COMMENT
comment = b"My first comment"
records = c_gsfRecords()
records.comment.comment_time.tvsec = c_int(1000)
records.comment.comment_length = c_int(len(comment))
records.comment.comment = create_string_buffer(comment)
record_size = 36 # bytes
tmp_gsf_file_path = os.fsencode(str(tmp_path / "temp.gsf"))
# Act
return_value = gsfpy.bindings.gsfOpen(
tmp_gsf_file_path, FileMode.GSF_CREATE, byref(file_handle)
)
assert_that(return_value).is_zero()
bytes_written = gsfpy.bindings.gsfWrite(file_handle, byref(data_id), byref(records))
assert_that(bytes_written).is_equal_to(record_size)
return_value = gsfpy.bindings.gsfClose(file_handle)
assert_that(return_value).is_zero()
# Read comment from newly created file to check it is as expected
data_id = c_gsfDataID()
data_id.recordID = RecordType.GSF_RECORD_COMMENT
records = c_gsfRecords()
return_value = gsfpy.bindings.gsfOpen(
tmp_gsf_file_path, FileMode.GSF_READONLY, byref(file_handle)
)
assert_that(return_value).is_zero()
bytes_read = gsfpy.bindings.gsfRead(
file_handle, RecordType.GSF_RECORD_COMMENT, byref(data_id), byref(records),
)
assert_that(bytes_read).is_equal_to(record_size)
return_value = gsfpy.bindings.gsfClose(file_handle)
assert_that(return_value).is_zero()
assert_that(string_at(records.comment.comment)).is_equal_to(comment)
def test_gsfGetSonarTextName_success(gsf_test_data_03_06):
"""
Open the test GSF file, read a multibeam ping record, then retrieve
the name of the sonar equipment used to capture it.
"""
# Arrange
file_handle = c_int(0)
data_id = c_gsfDataID()
records = c_gsfRecords()
# Act
return_value = gsfpy.bindings.gsfOpen(
os.fsencode(str(gsf_test_data_03_06.path)),
FileMode.GSF_READONLY,
byref(file_handle),
)
assert_that(return_value).is_zero()
bytes_read = gsfpy.bindings.gsfRead(
file_handle,
RecordType.GSF_RECORD_SWATH_BATHYMETRY_PING,
byref(data_id),
byref(records),
)
assert_that(bytes_read).is_equal_to(6116)
sonar_text_name = gsfpy.bindings.gsfGetSonarTextName(byref(records.mb_ping))
return_value = gsfpy.bindings.gsfClose(file_handle)
assert_that(return_value).is_zero()
# Assert
assert_that(sonar_text_name).is_equal_to("Kongsberg EM3002D")
def test_gsfPercent_success(gsf_test_data_03_06):
"""
Open the test GSF file, read 4 records, then retrieve the location of the file
pointer as a percentage of the total file size.
"""
# Arrange
file_handle = c_int(0)
data_id = c_gsfDataID()
records = c_gsfRecords()
# Act
return_value = gsfpy.bindings.gsfOpen(
os.fsencode(str(gsf_test_data_03_06.path)),
FileMode.GSF_READONLY_INDEX,
byref(file_handle),
)
assert_that(return_value).is_zero()
for i in range(4):
gsfpy.bindings.gsfRead(
file_handle, RecordType.GSF_NEXT_RECORD, byref(data_id), byref(records)
)
percent = gsfpy.bindings.gsfPercent(file_handle)
assert_that(percent).is_equal_to(4)
return_value = gsfpy.bindings.gsfClose(file_handle)
assert_that(return_value).is_zero()
def test_gsfRead_success(gsf_test_data_03_06):
"""
Read a comment record from a GSF file.
"""
file_handle = c_int(0)
data_id = c_gsfDataID()
records = c_gsfRecords()
return_value = gsfpy.bindings.gsfOpen(
os.fsencode(str(gsf_test_data_03_06.path)),
FileMode.GSF_READONLY,
byref(file_handle),
)
assert_that(return_value).is_zero()
bytes_read = gsfpy.bindings.gsfRead(
file_handle, RecordType.GSF_RECORD_COMMENT, byref(data_id), byref(records),
)
assert_that(bytes_read).is_equal_to(156)
return_value = gsfpy.bindings.gsfClose(file_handle)
assert_that(return_value).is_zero()
assert_that(string_at(records.comment.comment)).is_equal_to(
(
b"Bathy converted from HIPS file: "
b"M:\\CCOM_Processing\\CARIS_v9\\HIPS\\HDCS_Data\\EX1604"
b"\\Okeanos_2016\\2016-083\\0029_20160323_185603_EX1604_MB"
)
)
def test_gsfIsStarboardPing_success(gsf_test_data_03_06):
"""
Open the test GSF file, read a multibeam ping record, then find out if
it is a starboard ping.
"""
# Arrange
file_handle = c_int(0)
data_id = c_gsfDataID()
records = c_gsfRecords()
# Act
return_value = gsfpy.bindings.gsfOpen(
os.fsencode(str(gsf_test_data_03_06.path)),
FileMode.GSF_READONLY,
byref(file_handle),
)
assert_that(return_value).is_zero()
bytes_read = gsfpy.bindings.gsfRead(
file_handle,
RecordType.GSF_RECORD_SWATH_BATHYMETRY_PING,
byref(data_id),
byref(records),
)
assert_that(bytes_read).is_equal_to(6116)
is_starboard_ping: int = gsfpy.bindings.gsfIsStarboardPing(byref(records))
return_value = gsfpy.bindings.gsfClose(file_handle)
assert_that(return_value).is_zero()
# Assert
assert_that(is_starboard_ping).is_false()
def test_gsfGetMBParams_success(gsf_test_data_03_06):
"""
Set MB params, read a GSF record and copy fields to a gsfMBParams
structure.
"""
# Arrange
mbparams_in = c_gsfMBParams()
gsfpy.bindings.gsfInitializeMBParams(byref(mbparams_in))
mbparams_in.horizontal_datum = c_int(57)
mbparams_out = c_gsfMBParams()
gsfpy.bindings.gsfInitializeMBParams(byref(mbparams_out))
records = c_gsfRecords()
data_id = c_gsfDataID()
file_handle = c_int(0)
num_arrays = c_int(1)
# Act
return_value = gsfpy.bindings.gsfOpen(
os.fsencode(str(gsf_test_data_03_06.path)),
FileMode.GSF_READONLY,
byref(file_handle),
)
assert_that(return_value).is_zero()
return_value = gsfpy.bindings.gsfPutMBParams(
byref(mbparams_in), byref(records), file_handle, num_arrays
)
assert_that(return_value).is_zero()
bytes_read = gsfpy.bindings.gsfRead(
file_handle,
RecordType.GSF_RECORD_SWATH_BATHYMETRY_PING,
byref(data_id),
byref(records),
)
assert_that(bytes_read).is_equal_to(6116)
return_value = gsfpy.bindings.gsfGetMBParams(
byref(records), byref(mbparams_out), byref(num_arrays)
)
assert_that(return_value).is_zero()
return_value = gsfpy.bindings.gsfClose(file_handle)
assert_that(return_value).is_zero()
# Assert
with soft_assertions():
assert_that(mbparams_out.horizontal_datum).is_equal_to(
mbparams_in.horizontal_datum
)
assert_that(mbparams_out.number_of_transmitters).is_equal_to(1)
assert_that(mbparams_out.number_of_receivers).is_equal_to(1)
def test_gsfGetScaleFactor_success(gsf_test_data_03_06):
"""
Read a GSF record and get the beam array field size, compression flag,
multiplier and DC offset applied to it.
"""
# Arrange
file_handle = c_int(0)
records = c_gsfRecords()
data_id = c_gsfDataID()
subrecord_id = (
ScaledSwathBathySubRecord.GSF_SWATH_BATHY_SUBRECORD_MEAN_CAL_AMPLITUDE_ARRAY
)
c_flag = c_ubyte()
multiplier = c_double()
offset = c_double()
# Act
return_value = gsfpy.bindings.gsfOpen(
os.fsencode(str(gsf_test_data_03_06.path)),
FileMode.GSF_READONLY,
byref(file_handle),
)
assert_that(return_value).is_zero()
bytes_read = gsfpy.bindings.gsfRead(
file_handle,
RecordType.GSF_RECORD_SWATH_BATHYMETRY_PING,
byref(data_id),
byref(records),
)
assert_that(bytes_read).is_equal_to(6116)
return_value = gsfpy.bindings.gsfGetScaleFactor(
file_handle, subrecord_id, byref(c_flag), byref(multiplier), byref(offset)
)
assert_that(return_value).is_zero()
return_value = gsfpy.bindings.gsfClose(file_handle)
assert_that(return_value).is_zero()
# Assert
with soft_assertions():
assert_that(c_flag.value).is_equal_to(0)
assert_that(multiplier.value).is_equal_to(2)
assert_that(offset.value).is_equal_to(0)
def test_gsfSetDefaultScaleFactor_success(gsf_test_data_03_06):
"""
Set estimated scale factors for a gsfSwathBathyPing structure.
"""
# Arrange
file_handle = c_int(0)
records = c_gsfRecords()
data_id = c_gsfDataID()
# Act
return_value = gsfpy.bindings.gsfOpen(
os.fsencode(str(gsf_test_data_03_06.path)),
FileMode.GSF_READONLY,
byref(file_handle),
)
assert_that(return_value).is_zero()
bytes_read = gsfpy.bindings.gsfRead(
file_handle,
RecordType.GSF_RECORD_SWATH_BATHYMETRY_PING,
byref(data_id),
byref(records),
)
assert_that(bytes_read).is_equal_to(6116)
# Set multibeam ping scale factors to be empty
records.mb_ping.scaleFactors = c_gsfScaleFactors()
return_value = gsfpy.bindings.gsfSetDefaultScaleFactor(byref(records.mb_ping))
assert_that(return_value).is_zero()
return_value = gsfpy.bindings.gsfClose(file_handle)
assert_that(return_value).is_zero()
# Assert
with soft_assertions():
index = 2
assert_that(
records.mb_ping.scaleFactors.scaleTable[index].compressionFlag
).is_equal_to(0x00)
assert_that(
records.mb_ping.scaleFactors.scaleTable[index].multiplier
).is_equal_to(25)
assert_that(records.mb_ping.scaleFactors.scaleTable[index].offset).is_equal_to(
0
)
def test_gsfGetSwathBathyArrayMinMax_success(gsf_test_data_03_06):
"""
Open the test GSF file, read a multibeam ping record, then get min and
max supportable values for the swath bathymetry arrays in the given ping.
"""
# Arrange
file_handle = c_int(0)
data_id = c_gsfDataID()
records = c_gsfRecords()
min_value = c_double()
max_value = c_double()
subrecord_id = c_int(1)
# Act
return_value = gsfpy.bindings.gsfOpen(
os.fsencode(str(gsf_test_data_03_06.path)),
FileMode.GSF_READONLY,
byref(file_handle),
)
assert_that(return_value).is_zero()
bytes_read = gsfpy.bindings.gsfRead(
file_handle,
RecordType.GSF_RECORD_SWATH_BATHYMETRY_PING,
byref(data_id),
byref(records),
)
assert_that(bytes_read).is_equal_to(6116)
return_value = gsfpy.bindings.gsfGetSwathBathyArrayMinMax(
byref(records.mb_ping), subrecord_id, byref(min_value), byref(max_value),
)
assert_that(return_value).is_zero()
return_value = gsfpy.bindings.gsfClose(file_handle)
assert_that(return_value).is_zero()
# Assert
with soft_assertions():
assert_that(min_value.value).is_equal_to(3562.32)
assert_that(max_value.value).is_equal_to(4217.67)
def test_gsfGetSwathBathyBeamWidths_success(gsf_test_data_03_06):
"""
Open the test GSF file, read a multibeam ping record, then get fore-aft and
port-starboard beam widths, in degrees, for the given ping.
"""
# Arrange
file_handle = c_int(0)
data_id = c_gsfDataID()
records = c_gsfRecords()
fore_aft = c_double()
athwartship = c_double()
# Act
return_value = gsfpy.bindings.gsfOpen(
os.fsencode(str(gsf_test_data_03_06.path)),
FileMode.GSF_READONLY,
byref(file_handle),
)
assert_that(return_value).is_zero()
bytes_read = gsfpy.bindings.gsfRead(
file_handle,
RecordType.GSF_RECORD_SWATH_BATHYMETRY_PING,
byref(data_id),
byref(records),
)
assert_that(bytes_read).is_equal_to(6116)
return_value = gsfpy.bindings.gsfGetSwathBathyBeamWidths(
byref(records), byref(fore_aft), byref(athwartship),
)
assert_that(return_value).is_zero()
return_value = gsfpy.bindings.gsfClose(file_handle)
assert_that(return_value).is_zero()
# Assert
with soft_assertions():
assert_that(fore_aft.value).is_equal_to(1.5)
assert_that(athwartship.value).is_equal_to(1.5)
def test_gsf_swath_summary(gsf_test_data_03_06: GsfDatafile):
file_handle = c_int(0)
swath_summary_id = c_gsfDataID()
swath_summary_id.recordID = RecordType.GSF_RECORD_SWATH_BATHY_SUMMARY
records = c_gsfRecords()
# Read from file
return_value = gsfpy.bindings.gsfOpen(
os.fsencode(str(gsf_test_data_03_06.path)),
FileMode.GSF_READONLY,
byref(file_handle),
)
assert_that(return_value).is_zero()
bytes_read = gsfpy.bindings.gsfRead(
file_handle,
RecordType.GSF_RECORD_SWATH_BATHY_SUMMARY,
byref(swath_summary_id),
byref(records),
)
assert_that(bytes_read).is_equal_to(SUMMARY_RECORD_LENGTH)
return_value = gsfpy.bindings.gsfClose(file_handle)
assert_that(return_value).is_zero()
assert_that(SummaryRecord.from_summary(records.summary)).is_equal_to(
SummaryRecord(
min_lat=8.7118203,
max_lat=8.713543,
min_long=167.4759106,
max_long=167.477003,
min_depth=3862.43,
max_depth=4145.0,
start_time_sec=1458759363,
start_time_nsec=224999904,
end_time_sec=1458759436,
end_time_nsec=727999925,
))
def test_gsfFileIsNewSurveyLine_success(gsf_test_data_03_06):
"""
Open the test GSF file, read a ping, then discover whether it comes
from a new survey line.
"""
# Arrange
file_handle = c_int(0)
data_id = c_gsfDataID()
records = c_gsfRecords()
azimuth_change = c_double(90)
last_heading = c_double(180)
# Act
return_value = gsfpy.bindings.gsfOpen(
os.fsencode(str(gsf_test_data_03_06.path)),
FileMode.GSF_READONLY,
byref(file_handle),
)
assert_that(return_value).is_zero()
bytes_read = gsfpy.bindings.gsfRead(
file_handle,
RecordType.GSF_RECORD_SWATH_BATHYMETRY_PING,
byref(data_id),
byref(records),
)
assert_that(bytes_read).is_equal_to(6116)
is_new_survey_line: int = gsfpy.bindings.gsfIsNewSurveyLine(
file_handle, byref(records), azimuth_change, byref(last_heading)
)
return_value = gsfpy.bindings.gsfClose(file_handle)
assert_that(return_value).is_zero()
# Assert
assert_that(is_new_survey_line).is_true()
def read(
self,
desired_record: RecordType = RecordType.GSF_NEXT_RECORD,
record_number: int = 0,
) -> Tuple[c_gsfDataID, c_gsfRecords]:
"""
When the file is open in GSF_READONLY_INDEX or GSF_UPDATE_INDEX mode then the
record_number parameter may be used to indicate which instance of the record to
read.
:param desired_record: Record type to read
:param record_number: nth occurrence of the record to read from, starting from 1
:return: Tuple of c_gsfDataID and c_gsfRecords
:raises GsfException: Raised if anything went wrong
"""
data_id = c_gsfDataID()
data_id.record_number = record_number
records = c_gsfRecords()
_handle_failure(
gsfRead(self._handle, desired_record, byref(data_id), byref(records))
)
return data_id, records
def test_gsfPutMBParams_success(gsf_test_data_03_06):
"""
Create a gsfMBParams structure and copy fields to a gsfRecords
structure.
"""
# Arrange
mbparams = c_gsfMBParams()
gsfpy.bindings.gsfInitializeMBParams(byref(mbparams))
# Only WGS-84 (57) and NAD-83 (38) horizontal datum values are
# supported by GSF - see gsf.h
mbparams.horizontal_datum = c_int(57)
# Set number_of_transmitters and number_of_receivers to zero
# so that num_arrays param is used for these values when
# setting the params in the gsfRecords structure.
mbparams.number_of_transmitters = c_int(0)
mbparams.number_of_receivers = c_int(0)
mbparams.to_apply.position_x_offset = c_double(1.1)
mbparams.to_apply.position_y_offset = c_double(2.2)
mbparams.to_apply.position_z_offset = c_double(3.3)
mbparams.applied.position_x_offset = c_double(4.4)
mbparams.applied.position_y_offset = c_double(5.5)
mbparams.applied.position_z_offset = c_double(6.6)
records = c_gsfRecords()
# data_id = c_gsfDataID()
file_handle = c_int(0)
num_arrays = c_int(1)
# Act
return_value = gsfpy.bindings.gsfOpen(
os.fsencode(str(gsf_test_data_03_06.path)),
FileMode.GSF_READONLY,
byref(file_handle),
)
assert_that(return_value).is_zero()
return_value = gsfpy.bindings.gsfPutMBParams(
byref(mbparams), byref(records), file_handle, num_arrays
)
assert_that(return_value).is_zero()
return_value = gsfpy.bindings.gsfClose(file_handle)
assert_that(return_value).is_zero()
# Assert
with soft_assertions():
assert_that(records.process_parameters.number_parameters).is_equal_to(63)
# param zero is always epoch start time
assert_that(string_at(records.process_parameters.param[0])).is_equal_to(
b"REFERENCE TIME=1970/001 00:00:00"
)
# params 7 (NUMBER_OF_RECEIVERS) & 8 (NUMBER_OF_TRANSMITTERS) should have
# a value equal to num_arrays
assert_that(string_at(records.process_parameters.param[7])).is_equal_to(
b"NUMBER_OF_RECEIVERS=1"
)
assert_that(string_at(records.process_parameters.param[8])).is_equal_to(
b"NUMBER_OF_TRANSMITTERS=1"
)
# param 9 (DEPTH_CALCULATION) should have a value of 'UNKNOWN' as it
# has not been updated since being initialized
assert_that(string_at(records.process_parameters.param[9])).is_equal_to(
b"DEPTH_CALCULATION=UNKNOWN"
)
# param 19 (POSITION_OFFSET_TO_APPLY) should have values x,y,z equal to
# corresponding values in mbparams.to_apply
assert_that(string_at(records.process_parameters.param[19])).is_equal_to(
b"POSITION_OFFSET_TO_APPLY=+01.10,+02.20,+03.30"
)
# param 42 (APPLIED_POSITION_OFFSET) should have values x,y,z equal to
# corresponding values in mbparams.to_apply
assert_that(string_at(records.process_parameters.param[42])).is_equal_to(
b"APPLIED_POSITION_OFFSET=+04.40,+05.50,+06.60"
)
# param 61 (GEOID) should have a value equal to WGS-84, corresponding to
# mbparams.horizontal_datum value of 57
assert_that(string_at(records.process_parameters.param[61])).is_equal_to(
b"GEOID=WGS-84"
)
def _new_comment(comment: bytes) -> c_gsfRecords:
record = c_gsfRecords()
record.comment.comment_time.tvsec = c_int(1000)
record.comment.comment_length = c_int(len(comment))
record.comment.comment = create_string_buffer(comment)
return record
def test_gsf_swath_summary_save_update(gsf_test_data_03_06: GsfDatafile):
file_handle = c_int(0)
swath_summary_data_id = c_gsfDataID()
swath_summary_data_id.recordID = RecordType.GSF_RECORD_SWATH_BATHY_SUMMARY
record = c_gsfRecords()
return_value = gsfpy.bindings.gsfOpen(
os.fsencode(str(gsf_test_data_03_06.path)),
FileMode.GSF_UPDATE,
byref(file_handle),
)
assert_that(return_value).is_zero()
bytes_read = gsfpy.bindings.gsfRead(
file_handle,
RecordType.GSF_RECORD_SWATH_BATHY_SUMMARY,
byref(swath_summary_data_id),
byref(record),
)
assert_that(bytes_read).is_equal_to(SUMMARY_RECORD_LENGTH)
assert_that(SummaryRecord.from_summary(
record.summary)).is_not_equal_to(SUMMARY_RECORD)
# copy our data into the record
SUMMARY_RECORD.to_summary(record.summary)
# Go back to the first record so it doesn't write
# the updated first summary over the top of the second one
return_value = gsfpy.bindings.gsfSeek(file_handle,
SeekOption.GSF_PREVIOUS_RECORD)
assert_that(return_value).is_zero()
bytes_written = gsfpy.bindings.gsfWrite(file_handle,
byref(swath_summary_data_id),
byref(record))
assert_that(bytes_written).is_equal_to(SUMMARY_RECORD_LENGTH)
return_value = gsfpy.bindings.gsfClose(file_handle)
assert_that(return_value).is_zero()
# Read it back out and check it was saved correctly
file_handle = c_int(0)
updated_swath_summary_data_id = c_gsfDataID()
updated_swath_summary_data_id.recordID = RecordType.GSF_RECORD_SWATH_BATHY_SUMMARY
updated_record = c_gsfRecords()
return_value = gsfpy.bindings.gsfOpen(
os.fsencode(str(gsf_test_data_03_06.path)),
FileMode.GSF_READONLY,
byref(file_handle),
)
assert_that(return_value).is_zero()
bytes_read = gsfpy.bindings.gsfRead(
file_handle,
RecordType.GSF_RECORD_SWATH_BATHY_SUMMARY,
byref(updated_swath_summary_data_id),
byref(updated_record),
)
assert_that(bytes_read).is_equal_to(SUMMARY_RECORD_LENGTH)
return_value = gsfpy.bindings.gsfClose(file_handle)
assert_that(return_value).is_zero()
assert_that(SummaryRecord.from_summary(
updated_record.summary)).is_equal_to(SUMMARY_RECORD)