53 lines
1.6 KiB
Python
53 lines
1.6 KiB
Python
import io
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from util import Diff
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class TestDiff:
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def testDiff(self):
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assert Diff.diff(
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[],
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["one", "two", "three"]
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) == [("+", ["one", "two","three"])]
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assert Diff.diff(
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["one", "two", "three"],
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["one", "two", "three", "four", "five"]
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) == [("=", 11), ("+", ["four", "five"])]
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assert Diff.diff(
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["one", "two", "three", "six"],
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["one", "two", "three", "four", "five", "six"]
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) == [("=", 11), ("+", ["four", "five"]), ("=", 3)]
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assert Diff.diff(
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["one", "two", "three", "hmm", "six"],
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["one", "two", "three", "four", "five", "six"]
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) == [("=", 11), ("-", 3), ("+", ["four", "five"]), ("=", 3)]
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assert Diff.diff(
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["one", "two", "three"],
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[]
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) == [("-", 11)]
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def testDiffLimit(self):
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old_f = io.BytesIO(b"one\ntwo\nthree\nhmm\nsix")
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new_f = io.BytesIO(b"one\ntwo\nthree\nfour\nfive\nsix")
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actions = Diff.diff(list(old_f), list(new_f), limit=1024)
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assert actions
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old_f = io.BytesIO(b"one\ntwo\nthree\nhmm\nsix")
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new_f = io.BytesIO(b"one\ntwo\nthree\nfour\nfive\nsix"*1024)
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actions = Diff.diff(list(old_f), list(new_f), limit=1024)
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assert actions is False
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def testPatch(self):
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old_f = io.BytesIO(b"one\ntwo\nthree\nhmm\nsix")
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new_f = io.BytesIO(b"one\ntwo\nthree\nfour\nfive\nsix")
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actions = Diff.diff(
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list(old_f),
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list(new_f)
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)
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old_f.seek(0)
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assert Diff.patch(old_f, actions).getvalue() == new_f.getvalue()
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