mirror of https://github.com/status-im/nim-eth.git
47 lines
887 B
Nim
47 lines
887 B
Nim
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import
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unittest,
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eth/trie/db,
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eth/trie/backends/caching_backend
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let
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key1 = [0.byte, 0, 1]
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key2 = [0.byte, 0, 2]
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key3 = [0.byte, 0, 3]
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key4 = [0.byte, 0, 4]
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value1 = [1.byte, 0, 1]
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value2 = [1.byte, 0, 2]
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value3 = [1.byte, 0, 3]
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value4 = [1.byte, 0, 4]
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suite "Caching DB backend":
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test "Basic test":
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let mdb = newMemoryDB()
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mdb.put(key1, value1)
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mdb.put(key2, value2)
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let cdb = newCachingDB(mdb)
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check:
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cdb.get(key1) == @value1
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cdb.get(key2) == @value2
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cdb.del(key1)
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check:
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key1 notin cdb
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mdb.get(key1) == @value1
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cdb.put(key3, value3)
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check:
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cdb.get(key3) == @value3
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key3 notin mdb
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cdb.put(key4, value4)
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cdb.del(key4)
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check(key4 notin cdb)
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cdb.commit()
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check:
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key1 notin mdb
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mdb.get(key2) == @value2
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mdb.get(key3) == @value3
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key4 notin mdb
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