def test_edit_prereq_already_in_preclusion(self):
'''
Tests editing prerequisite on a module to prereqs which
are also preclusions of that module.
Note: this test case should fail to edit.
'''
if not self.edit_prereq_non_existent_tested:
model.add_preclusion(self.test_module_code, self.test_prereq_code)
prereq_units_to_change_to = [[self.test_prereq_code]]
outcome = model.edit_prerequisite(self.test_module_code,
prereq_units_to_change_to)
assert_false(outcome[0])
error_list = outcome[1]
assert_equal(len(error_list), 1)
assert_equal(error_list[0], [
self.test_prereq_code,
self.ERROR_MSG_MODULE_PREREQ_ALREADY_PRECLUSION
])
prereq_info = model.get_prerequisite(self.test_module_code)
assert_true(prereq_info is not None)
assert_true(len(prereq_info) == 0)
model.delete_all_preclusion(self.test_module_code)
preclude_info = model.get_preclusion(self.test_module_code)
assert_true(len(preclude_info) == 0)
def test_prereq_to_multiple_prereq(self):
'''
Tests editing prerequisite on a module to multiple prereq.
'''
if not self.prereq_to_multiple_prereq_tested:
model.add_prerequisite(self.test_module_code,
self.test_prereq_code,
self.test_prereq_index)
prereq_units_to_change_to = [[self.test_prereq_code],
[
self.test_prereq2_code,
self.test_prereq3_code
]]
outcome = model.edit_prerequisite(self.test_module_code,
prereq_units_to_change_to)
assert_true(outcome[0])
prereq_info = model.get_prerequisite(self.test_module_code)
assert_true(prereq_info is not None)
assert_equal(self.test_prereq_index, prereq_info[0][0])
assert_equal(self.test_prereq_code, prereq_info[0][1])
assert_equal(self.test_prereq2_index, prereq_info[1][0])
assert_equal(self.test_prereq2_code, prereq_info[1][1])
assert_equal(self.test_prereq3_index, prereq_info[2][0])
assert_equal(self.test_prereq3_code, prereq_info[2][1])
model.delete_all_prerequisite(self.test_module_code)
prereq_info = model.get_prerequisite(self.test_module_code)
assert_true(len(prereq_info) == 0)
return
def test_no_prereq_to_no_prereq(self):
'''
Tests editing prerequisite on a module originally with no prereq
to no prereq.
'''
if not self.no_prereq_to_no_prereq_tested:
prereq_units_to_change_to = []
outcome = model.edit_prerequisite(self.test_module_code,
prereq_units_to_change_to)
assert_true(outcome[0])
prereq_info = model.get_prerequisite(self.test_module_code)
assert_true(prereq_info is not None)
assert_true(len(prereq_info) == 0)
return
def POST(self):
'''
Handles the submission of updated module prerequisites
for a target module.
'''
isSucessfullyUpdated = False
input_data = model.validate_input(web.input(), ["code"], show_404=False)
if input_data:
module_code = input_data.code.upper()
prerequisites = json.loads(input_data.prerequisites)
isSucessfullyUpdated = model.edit_prerequisite(module_code, prerequisites)
new_prerequisites = model.get_prerequisite_as_string(module_code)
response = [isSucessfullyUpdated, new_prerequisites]
return json.dumps(response)
def test_no_prereq_to_one_prereq(self):
'''
Tests editing prerequisite on a module originally with no prereq
to 1 prereq.
'''
if not self.no_prereq_to_one_prereq_tested:
prereq_units_to_change_to = [[self.test_prereq_code]]
outcome = model.edit_prerequisite(self.test_module_code,
prereq_units_to_change_to)
assert_true(outcome[0])
prereq_info = model.get_prerequisite(self.test_module_code)
assert_true(prereq_info is not None)
assert_equal(self.test_prereq_index, prereq_info[0][0])
assert_equal(self.test_prereq_code, prereq_info[0][1])
model.delete_all_prerequisite(self.test_module_code)
prereq_info = model.get_prerequisite(self.test_module_code)
assert_true(len(prereq_info) == 0)
return
def test_edit_prereq_multiple_errors(self):
'''
Tests editing prerequisite on a module to prereqs which
causes multiple errors.
Note: this test case should fail to edit.
'''
if not self.edit_prereq_multiple_errors_tested:
model.add_prerequisite(self.test_module_code,
self.test_prereq_code,
self.test_prereq_index)
prereq_units_to_change_to = [[self.test_module_code],
[self.test_invalid_module_code]]
outcome = model.edit_prerequisite(self.test_module_code,
prereq_units_to_change_to)
assert_false(outcome[0])
error_list = outcome[1]
assert_equal(len(error_list), 2)
assert_equal(error_list[0], [
self.test_module_code, self.ERROR_MSG_MODULE_CANNOT_BE_ITSELF
])
assert_equal(error_list[1], [
self.test_invalid_module_code,
self.ERROR_MSG_MODULE_DOESNT_EXIST
])
prereq_info = model.get_prerequisite(self.test_module_code)
assert_true(prereq_info is not None)
assert_equal(self.test_prereq_index, prereq_info[0][0])
assert_equal(self.test_prereq_code, prereq_info[0][1])
model.delete_all_prerequisite(self.test_module_code)
prereq_info = model.get_prerequisite(self.test_module_code)
assert_true(len(prereq_info) == 0)
def test_edit_prereq_non_existent_modules(self):
'''
Tests editing prerequisite on a module to prereqs which does
not exist, note: this test case should fail to edit.
'''
if not self.edit_prereq_non_existent_tested:
model.add_prerequisite(self.test_module_code,
self.test_prereq_code,
self.test_prereq_index)
prereq_units_to_change_to = [[self.test_prereq2_code],
[self.test_invalid_module_code]]
outcome = model.edit_prerequisite(self.test_module_code,
prereq_units_to_change_to)
assert_false(outcome[0])
error_list = outcome[1]
assert_equal(len(error_list), 1)
assert_equal(error_list[0], [
self.test_invalid_module_code,
self.ERROR_MSG_MODULE_DOESNT_EXIST
])
prereq_info = model.get_prerequisite(self.test_module_code)
assert_true(prereq_info is not None)
assert_equal(self.test_prereq_index, prereq_info[0][0])
assert_equal(self.test_prereq_code, prereq_info[0][1])
model.delete_all_prerequisite(self.test_module_code)
prereq_info = model.get_prerequisite(self.test_module_code)
assert_true(len(prereq_info) == 0)
# Test another form
model.add_prerequisite(self.test_module_code,
self.test_prereq_code,
self.test_prereq_index)
prereq_units_to_change_to = [[
self.test_invalid_module_code, self.test_prereq2_code
]]
outcome = model.edit_prerequisite(self.test_module_code,
prereq_units_to_change_to)
assert_false(outcome[0])
error_list = outcome[1]
assert_equal(len(error_list), 1)
assert_equal(error_list[0], [
self.test_invalid_module_code,
self.ERROR_MSG_MODULE_DOESNT_EXIST
])
prereq_info = model.get_prerequisite(self.test_module_code)
assert_true(prereq_info is not None)
assert_equal(self.test_prereq_index, prereq_info[0][0])
assert_equal(self.test_prereq_code, prereq_info[0][1])
model.delete_all_prerequisite(self.test_module_code)
prereq_info = model.get_prerequisite(self.test_module_code)
assert_true(len(prereq_info) == 0)
return