def test_does_not_mutate(self):
merger = package.TemplateDeepMerger()
src = {'foo': 'bar'}
dst = {'baz': 'buz'}
merger.merge(src, dst)
assert src == {'foo': 'bar'}
assert dst == {'baz': 'buz'}
def test_can_merge_list(self):
merger = package.TemplateDeepMerger()
src = {'foo': [1, 2, 3]}
dst = {}
result = merger.merge(src, dst)
assert result == {
'foo': [1, 2, 3],
}
def test_can_replace_element(self):
merger = package.TemplateDeepMerger()
src = {'foo': 'bar'}
dst = {'foo': 'buz'}
result = merger.merge(src, dst)
assert result == {
'foo': 'bar',
}
def test_can_merge_without_changing_identity(self):
merger = package.TemplateDeepMerger()
src = {}
dst = {}
result = merger.merge(src, dst)
assert result is not src
assert result is not dst
assert src is not dst
def test_merge_can_change_type(self):
merger = package.TemplateDeepMerger()
src = {
'key': 'foo',
}
dst = {
'key': 1,
}
result = merger.merge(src, dst)
assert result == {'key': 'foo'}
def test_list_elements_are_replaced(self):
merger = package.TemplateDeepMerger()
src = {
'list': [{'foo': 'bar'}],
}
dst = {
'list': [{'foo': 'buz'}],
}
result = merger.merge(src, dst)
assert result == {
'list': [{'foo': 'bar'}],
}
def test_can_merge_nested_list(self):
merger = package.TemplateDeepMerger()
src = {
'foo': {
'bar': 'baz',
},
}
dst = {
'foo': {
'qux': [1, 2, 3, 4],
},
}
result = merger.merge(src, dst)
assert result == {
'foo': {
'bar': 'baz',
'qux': [1, 2, 3, 4],
}
}
def test_can_merge_nested_elements(self):
merger = package.TemplateDeepMerger()
src = {
'foo': {
'bar': 'baz',
},
}
dst = {
'foo': {
'qux': 'quack',
},
}
result = merger.merge(src, dst)
assert result == {
'foo': {
'bar': 'baz',
'qux': 'quack',
}
}
