def test_csv_header_simple(data):
header = ["abc", "cde"]
csv_string = data.draw(csv(header=header, lines=5))
records = csv2records(csv_string)
extracted_header = list(records[0].keys())
assert extracted_header == header
def test_csv_dialect_tab(data):
header = ["abc", "cde"]
csv_string = data.draw(csv(header=header, lines=5, dialect="excel-tab"))
records = csv2records(csv_string, delimiter="\t")
extracted_header = list(records[0].keys())
assert extracted_header == header
assert len(records) == 5
def test_csv_columns_seq(data):
columns = [
st.text(min_size=1,
max_size=100,
alphabet=string.ascii_lowercase + string.ascii_uppercase +
string.digits),
st.integers(),
st.floats(min_value=1.2, max_value=100.12)
]
csv_string = data.draw(csv(columns=columns, lines=40))
records = csv2records(csv_string, has_header=False)
detected_types = detect_types(records)[1]
types = list(map(lambda x: x["type"], detected_types["types"]))
assert len(records) == 40
assert types == ["text", "int", "float"]
def test_csv_columns_and_header_seq(data):
columns = [
st.text(min_size=1,
max_size=100,
alphabet=string.ascii_lowercase + string.ascii_uppercase +
string.digits),
st.integers(),
st.floats(min_value=1.2, max_value=100.12)
]
header = ["x", "y", "z"]
csv_string = data.draw(csv(header=header, columns=columns, lines=10))
records = csv2records(csv_string)
detected_types = detect_types(records)[1]
types = list(map(lambda x: x["type"], detected_types["types"]))
assert types == ["text", "int", "float"]
extracted_header = list(records[0].keys())
assert extracted_header == header
def test_csv_lines_fixed(data):
lines = 10
csv_string = data.draw(csv(lines=lines))
records = csv2records(csv_string, has_header=False)
assert len(records) == lines
def test_csv_header_property(data, header):
header = list(set(header))
csv_string = data.draw(csv(header=header))
records = csv2records(csv_string)
extracted_header = list(records[0].keys())
assert extracted_header == header
def test_csv_all_random(data):
csv_string = data.draw(csv())
assert isinstance(csv_string, str)
def test_csv_dialect_none(data):
header = ["abc", "cde"]
csv_string = data.draw(csv(header=header, lines=5, dialect=None))
records = csv2records(csv_string)
assert len(records) == 5
def test_csv_header_int(data, kwargs):
csv_string = data.draw(csv(**kwargs))
records = csv2records(csv_string, has_header="header" in kwargs)
extracted_header = list(records[0].keys())
assert len(extracted_header) == list(kwargs.values())[0]
def test_csv_parameter_fail(data, kwargs):
with pytest.raises(InvalidArgument):
data.draw(csv(**kwargs))