def test_no_preview_no_match(self):
"""Test no preview because there is no important lines."""
lines = self._make([
'a', 'b', 'x', 'x', 'x', 'c', 'd', 'e', 'c', 'd', 'e', 'c', 'd',
'e', 'x', 'x', 'x'
])
self.assertListEqual(show._preview_stacktrace(lines, 11, 5), [])
def test_preview_two_parts(self):
"""Test preview in 2 parts in the middle."""
stack = self._make([
'a', 'b', 'z', 'x', 'x', 'x', 't-c', 't-d', 't-e', 'x', 'x', 'x',
'z', 'x', 'x', 'x', 't-c', 'x', 'x', 'x', 'x', 'x', 'z'
])
expected = self._make([
3, 'x', 'x', 'x', 't-c', 't-d', 't-e', 'x', 'x', 'x', 1, 'x', 'x',
'x', 't-c', 'x', 'x', 'x', 3
])
result = show._preview_stacktrace(stack, 16, 3)
self.assertListEqual(result, expected)
def test_preview_two_parts_hit_limit(self):
"""Test preview in 2 parts in the middle and hit limit."""
stack = self._make([
'a', 'b', 'z', 'x', 'x', 'x', 't-c', 't-d', 't-e', 'x', 'x', 'x',
'z', 'x', 'x', 'x', 't-c', 'x', 'x', 'x', 'x', 'x', 'z'
])
expected = self._make([
3,
'x',
'x',
'x',
't-c',
't-d',
't-e',
'x',
13,
])
result = show._preview_stacktrace(stack, 7, 3)
self.assertListEqual(result, expected)
def test_preview_middle_and_end(self):
"""Test preview in the middle and in the end."""
stack = self._make([
'a', 'b', 'z', 'x', 'x', 'x', 't-c', 't-d', 't-e', 'x', 'x', 'x',
'z'
])
expected = self._make([
3,
'x',
'x',
'x',
't-c',
't-d',
't-e',
'x',
'x',
'x',
1,
])
result = show._preview_stacktrace(stack, 10, 3)
self.assertListEqual(result, expected)
def test_no_preview_small(self):
"""Test no preview because the stacktrace is so small."""
lines = self._make(
['a', 'b', 'x', 'x', 'x', 't-c', 't-d', 't-e', 'x', 'x', 'x'])
self.assertListEqual(show._preview_stacktrace(lines, 11, 5), [])
def test_empty(self):
"""Test empty stacktrace."""
self.assertListEqual(show._preview_stacktrace([], 10, 3), [])
