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Merged
merged 2 commits into from
Jun 22, 2015
Merged

Sort coverage. #11799

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efe9a17
Add tests for sort coverage.
Ismael-VC Jun 21, 2015
f1b7b62
Add informative comment.
Ismael-VC Jun 22, 2015
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30 changes: 26 additions & 4 deletions test/sorting.jl
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Original file line number Diff line number Diff line change
@@ -1,5 +1,7 @@
# This file is a part of Julia. License is MIT: http://julialang.org/license

using Base.Order: Forward

@test sort([2,3,1]) == [1,2,3]
@test sort([2,3,1], rev=true) == [3,2,1]
@test sort(['z':-1:'a';]) == ['a':'z';]
Expand Down Expand Up @@ -32,8 +34,8 @@ numTypes = [ Int8, Int16, Int32, Int64, Int128,

@test searchsorted([1:10;], 1, by=(x -> x >= 5)) == 1:4
@test searchsorted([1:10;], 10, by=(x -> x >= 5)) == 5:10
@test searchsorted([1:5; 1:5; 1:5], 1, 6, 10, Base.Order.Forward) == 6:6
@test searchsorted(ones(15), 1, 6, 10, Base.Order.Forward) == 6:10
@test searchsorted([1:5; 1:5; 1:5], 1, 6, 10, Forward) == 6:6
@test searchsorted(ones(15), 1, 6, 10, Forward) == 6:10

for R in numTypes, T in numTypes
@test searchsorted(R[1, 1, 2, 2, 3, 3], T(0)) == 1:0
Expand All @@ -49,8 +51,8 @@ for R in numTypes, T in numTypes

@test searchsorted(R[1:10;], T(1), by=(x -> x >= 5)) == 1:4
@test searchsorted(R[1:10;], T(10), by=(x -> x >= 5)) == 5:10
@test searchsorted(R[1:5; 1:5; 1:5], T(1), 6, 10, Base.Order.Forward) == 6:6
@test searchsorted(ones(R, 15), T(1), 6, 10, Base.Order.Forward) == 6:10
@test searchsorted(R[1:5; 1:5; 1:5], T(1), 6, 10, Forward) == 6:6
@test searchsorted(ones(R, 15), T(1), 6, 10, Forward) == 6:10
end

for (rg,I) in [(49:57,47:59), (1:2:17,-1:19), (-3:0.5:2,-5:.5:4)]
Expand Down Expand Up @@ -83,6 +85,26 @@ end
@test searchsorted([1,2,3], 0) == 1:0
@test searchsorted([1,2,3], 4) == 4:3

# exercise the codepath in searchsorted* methods for ranges that check for zero step range
immutable ConstantRange{T} <: Range{T}
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@ivarne ivarne Jun 21, 2015

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This section would benefit from a comment. (I know lots of others would too, but it is easier to complain in a not-yet-merged PR)

Eg:

# exercise the codepath in searchsorted* methods for ranges that check for zero step range

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@Ismael-VC Ismael-VC Jun 22, 2015

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Thanks!, I agree, it's done.

val::T
len::Int
end

Base.length(r::ConstantRange) = r.len
Base.getindex(r::ConstantRange, i::Int) = (1 <= i <= r.len || throw(BoundsError(r,i)); r.val)
Base.step(r::ConstantRange) = 0

r = ConstantRange(1, 5)

@test searchsortedfirst(r, 1.0, Forward) == 1
@test searchsortedfirst(r, 1, Forward) == 1
@test searchsortedfirst(r, UInt(1), Forward) == 1

@test searchsortedlast(r, 1.0, Forward) == 5
@test searchsortedlast(r, 1, Forward) == 5
@test searchsortedlast(r, UInt(1), Forward) == 5

a = rand(1:10000, 1000)

for alg in [InsertionSort, MergeSort]
Expand Down