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Fix zero() error in 'missing' test #24984

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Dec 8, 2017
Merged

Fix zero() error in 'missing' test #24984

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15 changes: 10 additions & 5 deletions test/sparse/sparse.jl
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Original file line number Diff line number Diff line change
Expand Up @@ -1135,14 +1135,19 @@ end
A = sparse(["a", "b"])
@test_throws MethodError findmin(A, 1)

# Support the case, when user defined `zero` and `isless` for non-numerical type
#
Base.zero(::Type{T}) where T<:AbstractString = ""
for (tup, rval, rind) in [((1,), ["a"], [1])]
# Support the case when user defined `zero` and `isless` for non-numerical type
struct CustomType
x::String
end
Base.zero(::Type{CustomType}) = CustomType("")
Base.isless(x::CustomType, y::CustomType) = isless(x.x, y.x)
A = sparse([CustomType("a"), CustomType("b")])

for (tup, rval, rind) in [((1,), [CustomType("a")], [1])]
@test isequal(findmin(A, tup), (rval, rind))
end

for (tup, rval, rind) in [((1,), ["b"], [2])]
for (tup, rval, rind) in [((1,), [CustomType("b")], [2])]
@test isequal(findmax(A, tup), (rval, rind))
end

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