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from tests.unittests import helpers
from cloudinit import mergers
class TestSimpleRun(helpers.MockerTestCase):
def test_basic_merge(self):
source = {
'Blah': ['blah2'],
'Blah3': 'c',
}
merge_with = {
'Blah2': ['blah3'],
'Blah3': 'b',
'Blah': ['123'],
}
# Basic merge should not do thing special
merge_how = "list()+dict()+str()"
merger_set = mergers.string_extract_mergers(merge_how)
self.assertEquals(3, len(merger_set))
merger = mergers.construct(merger_set)
merged = merger.merge(source, merge_with)
self.assertEquals(merged['Blah'], ['blah2'])
self.assertEquals(merged['Blah2'], ['blah3'])
self.assertEquals(merged['Blah3'], 'c')
def test_dict_overwrite(self):
source = {
'Blah': ['blah2'],
}
merge_with = {
'Blah': ['123'],
}
# Now lets try a dict overwrite
merge_how = "list()+dict(overwrite)+str()"
merger_set = mergers.string_extract_mergers(merge_how)
self.assertEquals(3, len(merger_set))
merger = mergers.construct(merger_set)
merged = merger.merge(source, merge_with)
self.assertEquals(merged['Blah'], ['123'])
def test_string_append(self):
source = {
'Blah': 'blah2',
}
merge_with = {
'Blah': '345',
}
merge_how = "list()+dict()+str(append)"
merger_set = mergers.string_extract_mergers(merge_how)
self.assertEquals(3, len(merger_set))
merger = mergers.construct(merger_set)
merged = merger.merge(source, merge_with)
self.assertEquals(merged['Blah'], 'blah2345')
def test_list_extend(self):
source = ['abc']
merge_with = ['123']
merge_how = "list(extend)+dict()+str()"
merger_set = mergers.string_extract_mergers(merge_how)
self.assertEquals(3, len(merger_set))
merger = mergers.construct(merger_set)
merged = merger.merge(source, merge_with)
self.assertEquals(merged, ['abc', '123'])
def test_deep_merge(self):
source = {
'a': [1, 'b', 2],
'b': 'blahblah',
'c': {
'e': [1, 2, 3],
'f': 'bigblobof',
'iamadict': {
'ok': 'ok',
}
},
'run': [
'runme',
'runme2',
],
'runmereally': [
'e', ['a'], 'd',
],
}
merge_with = {
'a': ['e', 'f', 'g'],
'b': 'more',
'c': {
'a': 'b',
'f': 'stuff',
},
'run': [
'morecmd',
'moremoremore',
],
'runmereally': [
'blah', ['b'], 'e',
],
}
merge_how = "list(extend)+dict()+str(append)"
merger_set = mergers.string_extract_mergers(merge_how)
self.assertEquals(3, len(merger_set))
merger = mergers.construct(merger_set)
merged = merger.merge(source, merge_with)
self.assertEquals(merged['a'], [1, 'b', 2, 'e', 'f', 'g'])
self.assertEquals(merged['b'], 'blahblahmore')
self.assertEquals(merged['c']['f'], 'bigblobofstuff')
self.assertEquals(merged['run'], ['runme', 'runme2', 'morecmd',
'moremoremore'])
self.assertEquals(merged['runmereally'], ['e', ['a'], 'd', 'blah',
['b'], 'e'])
def test_dict_overwrite_layered(self):
source = {
'Blah3': {
'f': '3',
'g': {
'a': 'b',
}
}
}
merge_with = {
'Blah3': {
'e': '2',
'g': {
'e': 'f',
}
}
}
merge_how = "list()+dict()+str()"
merger_set = mergers.string_extract_mergers(merge_how)
self.assertEquals(3, len(merger_set))
merger = mergers.construct(merger_set)
merged = merger.merge(source, merge_with)
self.assertEquals(merged['Blah3'], {
'e': '2',
'f': '3',
'g': {
'a': 'b',
'e': 'f',
}
})
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