def open(self) -> bool:
if self._source == "?":
self._error = "Use snapshot tab to see files available"
return False
try:
# patch up correct filename
fn = os.path.basename(self._source)
full_path = pathlib.PurePath(SnapVariables.SNAPSHOT_DIRECTORY, fn)
full_path = str(full_path)
# now open the actual file
file = FileMetaData.FileMetaData(full_path)
ok, self._file, self._is_wav_file, data_type, sps, cf = file.open()
self._has_meta_data = file.has_meta_data()
# only update the following if we managed to recover them on the open()
if ok:
self.set_sample_type(data_type)
# cf and sps can be overridden from ui
self._centre_frequency_hz = cf
self._sample_rate_sps = sps
except ValueError as msg:
self._error = msg
logger.error(msg)
raise ValueError(msg)
self._connected = True
return self._connected
def test_parse_filename_illegal_data_type():
ok, _, _, _, _ = FileMetaData.parse_filename("test.imag.1000.7f")
assert not ok
def test_parse_filename_illegal_sample_rate():
ok, _, _, _, _ = FileMetaData.parse_filename("test.cplx.twoMhz.8t")
assert not ok
def test_parse_filename_unsupported_real():
ok, _, _, _, _ = FileMetaData.parse_filename("test.real.1000.16tle")
assert not ok
def test_parse_filename_illegal_real_complex_type():
ok, _, _, _, _ = FileMetaData.parse_filename("test.imag.1000.16tle")
assert not ok
def test_parse_filename_ignore_too_many_cf_in_filename():
assert FileMetaData.parse_filename("test.cf.zero.cf1234.cplx.2000.16tbe") == (True, "16tbe", True, 2000.0, 0.0)
def test_parse_filename_not_enough_fields():
ok, _, _, _, _ = FileMetaData.parse_filename("test.cplx.1000")
assert not ok
def test_parse_filename_centre_frequency_no_decimal_point():
assert FileMetaData.parse_filename("test.cf1234.cplx.2000.16tbe") == (True, "16tbe", True, 2000.0, 1234e6)
def test_parse_filename_centre_frequency():
assert FileMetaData.parse_filename("test.cf1234.1.cplx.2000.16tle") == (True, "16tle", True, 2000.0, 1234.1e6)
def test_parse_filename_with_bad_cf_number():
assert FileMetaData.parse_filename("test.cf433.a.cplx.1000.16tle") == (True, "16tle", True, 1000.0, 0.0)
def test_parse_filename_with_cf():
assert FileMetaData.parse_filename("test.cf433.5.cplx.1000.16tle") == (True, "16tle", True, 1000.0, 433500000.0)
def test_parse_filename():
assert FileMetaData.parse_filename("test.cplx.1000.16tle") == (True, "16tle", True, 1000.0, 0.0)