mirror of https://github.com/status-im/nim-eth.git
89 lines
2.4 KiB
Nim
89 lines
2.4 KiB
Nim
# Copyright (c) 2020-2021 Status Research & Development GmbH
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# Licensed and distributed under either of
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# * MIT license (license terms in the root directory or at https://opensource.org/licenses/MIT).
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# * Apache v2 license (license terms in the root directory or at https://www.apache.org/licenses/LICENSE-2.0).
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# at your option. This file may not be copied, modified, or distributed except according to those terms.
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{.used.}
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import
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unittest,
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../../eth/utp/growable_buffer
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suite "Utp ring buffer":
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test "Empty buffer":
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let buff = GrowableCircularBuffer[int].init(size = 4)
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check:
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buff.len() == 4
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buff.get(0).isNone()
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test "Adding elements to buffer":
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var buff = GrowableCircularBuffer[int].init(size = 4)
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buff.put(11, 11)
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buff.put(12, 12)
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buff.put(13, 13)
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buff.put(14, 14)
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check:
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buff.get(11) == some(11)
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buff.get(12) == some(12)
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buff.get(13) == some(13)
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buff.get(14) == some(14)
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test "Deleting elements from buffer":
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var buff = GrowableCircularBuffer[int].init(size = 4)
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buff.put(11, 11)
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check:
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buff.get(11) == some(11)
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buff.delete(11)
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check:
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buff.get(11) == none[int]()
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test "Adding elements to buffer while ensuring proper size":
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var buff = GrowableCircularBuffer[int].init(size = 4)
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buff.put(11, 11)
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buff.put(12, 12)
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buff.put(13, 13)
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buff.put(14, 14)
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# next element will be 5 in buffer, so it has index equal to 4
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buff.ensureSize(15, 4)
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buff.put(15, 15)
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check:
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# it growed to next power of two
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buff.len() == 8
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buff.get(11) == some(11)
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buff.get(12) == some(12)
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buff.get(13) == some(13)
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buff.get(14) == some(14)
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buff.get(15) == some(15)
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test "Adding out of order elements to buffer while ensuring proper size":
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var buff = GrowableCircularBuffer[int].init(size = 4)
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buff.put(11, 11)
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buff.put(12, 12)
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buff.put(13, 13)
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buff.put(14, 14)
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# element with nr 17 will be on needed on index 6
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buff.ensureSize(17, 6)
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buff.put(17, 17)
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check:
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# it growed to next power of two
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buff.len() == 8
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buff.get(11) == some(11)
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buff.get(12) == some(12)
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buff.get(13) == some(13)
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buff.get(14) == some(14)
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# elements 15 and 16 are not present yet
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buff.get(15) == none[int]()
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buff.get(16) == none[int]()
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buff.get(17) == some(17)
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