def test_apply_change_add(self):
# Setup: Create a script file with a selection of test text
sf = self._get_test_script_file()
# If: I apply a change that adds text
params = TextDocumentChangeEvent.from_dict({
'range': {
'start': {
'line': 1,
'character': 1
},
'end': {
'line': 3,
'character': 1
}
},
'text':
'\r\npgsql\r\nis\r\nawesome\r\n'
})
sf.apply_change(params)
# Then:
# ... The text should have updated
expected_result = ['abc', 'd', 'pgsql', 'is', 'awesome', 'lm']
self.assertListEqual(sf.file_lines, expected_result)
def test_apply_change_invalid_position(self):
# Setup: Create a script file with a selection of test text
sf = self._get_test_script_file()
# If: I apply a change at an invalid part of the document
# Then:
# ... I should get an exception throws
with self.assertRaises(ValueError):
params = TextDocumentChangeEvent.from_dict({
'range': {
'start': {
'line': 1,
'character': -1
}, # Invalid character
'end': {
'line': 3,
'character': 1
}
},
'text': ''
})
sf.apply_change(params)
# ... The text should remain the same
self.assertListEqual(sf.file_lines,
self._get_test_script_file().file_lines)
def test_apply_change_remove_line(self):
"""Test removing an entire line from the script file by selecting the line"""
# Set up the test file and parameters to remove a line from the file
script_file = self._get_test_script_file()
# If I remove a line from the file
params = TextDocumentChangeEvent.from_dict({
'range': {
'start': {
'line': 1,
'character': 0
},
'end': {
'line': 2,
'character': 0
}
},
'text': ''
})
script_file.apply_change(params)
# Then the text should have updated without a validation error
expected_result = ['abc', 'ghij', 'klm']
self.assertListEqual(script_file.file_lines, expected_result)
def test_apply_change_add_character(self):
"""Test applying a change by adding a single character to the end of an existing line"""
# Set up the test file and parameters to add a character at the end of the first line
script_file = self._get_test_script_file()
# If I add a single character to the end of a line
params = TextDocumentChangeEvent.from_dict({
'range': {
'start': {
'line': 0,
'character': 3
},
'end': {
'line': 0,
'character': 3
}
},
'text': 'a'
})
script_file.apply_change(params)
# Then the text should have updated without a validation error
expected_result = ['abca', 'def', 'ghij', 'klm']
self.assertListEqual(script_file.file_lines, expected_result)
def test_apply_change_remove(self):
# Setup: Create a script file with a selection of test text
sf = self._get_test_script_file()
# If: I apply a change that removes the text
params = TextDocumentChangeEvent.from_dict({
'range': {
'start': {
'line': 1,
'character': 1
},
'end': {
'line': 3,
'character': 1
}
},
'text': '1'
})
sf.apply_change(params)
# Then:
# ... The text should have updated
expected_result = ['abc', 'd1lm']
self.assertListEqual(sf.file_lines, expected_result)
def test_apply_change_add_parentheses(self):
"""Test applying a change that simulates typing parentheses and putting text between them"""
# Set up the test file and parameters to add a character at the end of the first line
script_file = self._get_test_script_file()
# If I add parentheses to the end of a line...
params = TextDocumentChangeEvent.from_dict({
'range': {
'start': {
'line': 0,
'character': 3
},
'end': {
'line': 0,
'character': 3
}
},
'text': '()'
})
script_file.apply_change(params)
expected_result = ['abc()', 'def', 'ghij', 'klm']
self.assertListEqual(script_file.file_lines, expected_result)
# And then type inside the parentheses
params = TextDocumentChangeEvent.from_dict({
'range': {
'start': {
'line': 0,
'character': 4
},
'end': {
'line': 0,
'character': 4
}
},
'text': 'a'
})
script_file.apply_change(params)
expected_result = ['abc(a)', 'def', 'ghij', 'klm']
self.assertListEqual(script_file.file_lines, expected_result)
# And then overwrite the last parenthesis
params = TextDocumentChangeEvent.from_dict({
'range': {
'start': {
'line': 0,
'character': 5
},
'end': {
'line': 0,
'character': 6
}
},
'text': ')'
})
script_file.apply_change(params)
# Then the text should have updated without a validation error
expected_result = ['abc(a)', 'def', 'ghij', 'klm']
self.assertListEqual(script_file.file_lines, expected_result)