/usr/share/julia/test/functional.jl is in julia-common 0.4.7-6.
This file is owned by root:root, with mode 0o644.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 | # This file is a part of Julia. License is MIT: http://julialang.org/license
# tests related to functional programming functions and styles
# map -- array.jl
@test isequal(map((x)->"$x"[end:end], 9:11), ["9", "0", "1"])
# TODO: @test map!() much more thoroughly
let a = [1.0, 2.0]
map!(sin, a)
@test isequal(a, sin([1.0, 2.0]))
end
# map -- ranges.jl
@test isequal(map(i->sqrt(i), 1:5), [sqrt(i) for i in 1:5])
@test isequal(map(i->sqrt(i), 2:6), [sqrt(i) for i in 2:6])
# map on ranges should evaluate first value only once (#4453)
let io=IOBuffer(3)
map(x->print(io,x), 1:2)
@test takebuf_string(io)=="12"
end
# map over Bottom[] should return Bottom[]
# issue #6719
@test isequal(typeof(map(x -> x, Array(Union{},0))), Array{Union{},1})
# maps of tuples (formerly in test/core.jl) -- tuple.jl
@test map((x,y)->x+y,(1,2,3),(4,5,6)) == (5,7,9)
@test map((x,y)->x+y,
(100001,100002,100003),
(100004,100005,100006)) == (200005,200007,200009)
# maps of strings (character arrays) -- string.jl
@test map((c)->Char(c+1), "abcDEF") == "bcdEFG"
# filter -- array.jl
@test isequal(filter(x->(x>1), [0 1 2 3 2 1 0]), [2, 3, 2])
# TODO: @test_throws isequal(filter(x->x+1, [0 1 2 3 2 1 0]), [2, 3, 2])
@test isequal(filter(x->(x>10), [0 1 2 3 2 1 0]), [])
@test isequal(filter((ss)->length(ss)==3, ["abcd", "efg", "hij", "klmn", "opq"]), ["efg", "hij", "opq"])
# zip and filter iterators
# issue #4718
@test collect(filter(x->x[1], zip([true, false, true, false],"abcd"))) == [(true,'a'),(true,'c')]
let z = zip(1:2)
@test collect(z) == [(1,), (2,)]
# Issue #13979
@test eltype(z) == Tuple{Int}
end
let z = zip(1:2, 3:4)
@test collect(z) == [(1,3), (2,4)]
@test eltype(z) == Tuple{Int,Int}
end
let z = zip(1:2, 3:4, 5:6)
@test collect(z) == [(1,3,5), (2,4,6)]
@test eltype(z) == Tuple{Int,Int,Int}
end
# enumerate (issue #6284)
let b = IOBuffer("1\n2\n3\n"), a = []
for (i,x) in enumerate(eachline(b))
push!(a, (i,x))
end
@test a == [(1,"1\n"),(2,"2\n"),(3,"3\n")]
end
# zip eachline (issue #7369)
let zeb = IOBuffer("1\n2\n3\n4\n5\n"),
letters = ['a', 'b', 'c', 'd', 'e'],
res = []
for (number, letter) in zip(eachline(zeb), letters)
push!(res, (parse(Int,strip(number)), letter))
end
@test res == [(1, 'a'), (2, 'b'), (3, 'c'), (4, 'd'), (5, 'e')]
end
# rest
# ----
let s = "hello"
_, st = next(s, start(s))
@test collect(rest(s, st)) == ['e','l','l','o']
end
# countfrom
# ---------
let i = 0
for j = countfrom(0, 2)
@test j == i*2
i += 1
i <= 10 || break
end
end
# take
# ----
let t = take(0:2:8, 10), i = 0
@test length(collect(t)) == 5
for j = t
@test j == i*2
i += 1
end
@test i == 5
end
let i = 0
for j = take(0:2:100, 10)
@test j == i*2
i += 1
end
@test i == 10
end
# drop
# ----
let i = 0
for j = drop(0:2:10, 2)
@test j == (i+2)*2
i += 1
end
@test i == 4
end
# cycle
# -----
let i = 0
for j = cycle(0:3)
@test j == i % 4
i += 1
i <= 10 || break
end
end
# repeated
# --------
let i = 0
for j = repeated(1, 10)
@test j == 1
i += 1
end
@test i == 10
end
let i = 0
for j = repeated(1)
@test j == 1
i += 1
i <= 10 || break
end
end
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