68 lines
2.0 KiB
Nim
68 lines
2.0 KiB
Nim
import std/sequtils
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import pkg/chronos
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import pkg/asynctest
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import pkg/codex/utils/asynciter
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import ./helpers
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import pkg/codex/indexingstrategy
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for offset in @[0, 1, 2, 100]:
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suite "Indexing strategies (Offset: " & $offset & ")":
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let
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firstIndex = 0 + offset
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lastIndex = 12 + offset
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nIters = 3
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linear = LinearIndexingStrategy.new(firstIndex, lastIndex, nIters)
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stepped = SteppedIndexingStrategy.new(firstIndex, lastIndex, nIters)
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test "linear":
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check:
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toSeq(linear.getIndicies(0)) == @[0, 1, 2, 3, 4].mapIt(it + offset)
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toSeq(linear.getIndicies(1)) == @[5, 6, 7, 8, 9].mapIt(it + offset)
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toSeq(linear.getIndicies(2)) == @[10, 11, 12].mapIt(it + offset)
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test "stepped":
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check:
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toSeq(stepped.getIndicies(0)) == @[0, 3, 6, 9, 12].mapIt(it + offset)
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toSeq(stepped.getIndicies(1)) == @[1, 4, 7, 10].mapIt(it + offset)
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toSeq(stepped.getIndicies(2)) == @[2, 5, 8, 11].mapIt(it + offset)
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suite "Indexing strategies":
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let
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linear = LinearIndexingStrategy.new(0, 10, 3)
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stepped = SteppedIndexingStrategy.new(0, 10, 3)
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test "smallest range 0":
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let
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l = LinearIndexingStrategy.new(0, 0, 1)
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s = SteppedIndexingStrategy.new(0, 0, 1)
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check:
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toSeq(l.getIndicies(0)) == @[0]
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toSeq(s.getIndicies(0)) == @[0]
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test "smallest range 1":
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let
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l = LinearIndexingStrategy.new(0, 1, 1)
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s = SteppedIndexingStrategy.new(0, 1, 1)
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check:
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toSeq(l.getIndicies(0)) == @[0, 1]
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toSeq(s.getIndicies(0)) == @[0, 1]
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test "first index must be smaller than last index":
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expect IndexingWrongIndexError:
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discard LinearIndexingStrategy.new(10, 0, 1)
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test "numberOfIterations must be greater than zero":
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expect IndexingWrongIterationsError:
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discard LinearIndexingStrategy.new(0, 10, 0)
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test "linear - oob":
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expect IndexingError:
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discard linear.getIndicies(3)
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test "stepped - oob":
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expect IndexingError:
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discard stepped.getIndicies(3)
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