def test_exits_when_passed_empty_datalines_list():
"""Exits with error if datalines list passed as argument is empty."""
rules = [
Rule(1, "NOW", "a.txt", "now.txt", 0),
Rule(1, "LATER", "a.txt", "later.txt", 0),
]
lines = []
with pytest.raises(SystemExit):
apply_rules_to_datalines(rules=rules, datalines=lines)
def test_all_lines_moved_to_target():
"""Returns correct dictionary where all lines moved to target."""
rules = [Rule(1, ".", "a.txt", "b.txt", None)]
lines = ["LATER Winter\n", "NOW Summer\n"]
expected_dict = {"a.txt": [], "b.txt": ["LATER Winter\n", "NOW Summer\n"]}
actual_dict = apply_rules_to_datalines(rules, lines)
assert actual_dict == expected_dict
def test_sorts_on_entire_line_given_sortorder_zero():
"""Correctly sorts on entire line."""
rules = [Rule(0, "i", "a.txt", "b.txt", 0)]
lines = ["two ticks\n", "an ant\n", "the mite\n"]
expected_dict = {
"a.txt": ["an ant\n"],
"b.txt": ["the mite\n", "two ticks\n"]
}
actual_dict = apply_rules_to_datalines(rules, lines)
assert actual_dict == expected_dict
def test_sorts_on_second_field_given_sortorder_two():
"""Correctly sorts on second field."""
rules = [Rule(2, "i", "a.txt", "b.txt", 2)]
lines = ["the tick\n", "an ant\n", "two mites\n"]
expected_dict = {
"a.txt": ["an ant\n"],
"b.txt": ["two mites\n", "the tick\n"]
}
actual_dict = apply_rules_to_datalines(rules, lines)
assert actual_dict == expected_dict
def test_two_rules_and_original_source_now_empty():
"""After processing two rules, lines now in values of new source keys."""
rules = [
Rule(1, "NOW", "a.txt", "now.txt", 0),
Rule(1, "LATER", "a.txt", "later.txt", 0),
]
lines = ["NOW Summer\n", "LATER Winter\n"]
result_dict = {
"now.txt": ["NOW Summer\n"],
"later.txt": ["LATER Winter\n"],
"a.txt": [],
}
actual_dict = apply_rules_to_datalines(rules, lines)
assert actual_dict == result_dict
def test_exits_when_no_data_specified():
"""Exits with error no datalines list is passed as argument."""
rules = [[Rule(1, "a", "b", "c", 2)]]
with pytest.raises(SystemExit):
apply_rules_to_datalines(rules=rules, datalines=None)
def test_exits_when_passed_empty_rule_list():
"""Exits with error if list of rule objects, passed as argument, is empty."""
rules = []
lines = ["NOW Summer\n", "LATER Winter\n"]
with pytest.raises(SystemExit):
apply_rules_to_datalines(rules=rules, datalines=lines)
def test_exits_when_no_rulelist_specified():
"""Exits with error if list of rule objects is not passed as an argument."""
lines = [["a line\n"]]
with pytest.raises(SystemExit):
apply_rules_to_datalines(rules=None, datalines=lines)
