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Revision b0ef6fc6fff067f6daa937d9b36a7879e6ea4b61 authored by Jameson Nash on 02 January 2018, 17:29:04 UTC, committed by Jameson Nash on 02 January 2018, 17:29:06 UTC 
LICENSE: clarify contributors list
 
A GitHub link is not necessarily the most stable reference,
and also appears to only list the top 100.
The updated text is intended to make it clear that this lists may not
be fully accurate (as JuliaLang does not have full control over it),
and inform the user of an alternate method of listing the JuliaLang
authorship history through git.
1 parent 2cc82d2
Raw File
error.jl 
# This file is a part of Julia. License is MIT: https://julialang.org/license

@testset "ExponentialBackOff" begin
    @test length(ExponentialBackOff(n=10)) == 10
    @test collect(ExponentialBackOff(n=10, first_delay=0.01))[1] == 0.01
    @test maximum(ExponentialBackOff(n=10, max_delay=0.06)) == 0.06
    ratio(x) = x[2:end]./x[1:end-1]
    @test all(x->x ≈ 10.0, ratio(collect(ExponentialBackOff(n=10, max_delay=Inf, factor=10, jitter=0.0))))
    guardsrand(12345) do
        @test (mean(ratio(collect(ExponentialBackOff(n=100, max_delay=Inf, factor=1, jitter=0.1)))) - 1.0) < 1e-4
    end
end
@testset "retrying after errors" begin
    function foo_error(c, n)
        c[1] += 1
        if c[1] <= n
            error("foo")
        end
        return 7
    end

    # Success on first attempt
    c = [0]
    @test retry(foo_error)(c,0) == 7
    @test c[1] == 1

    # Success on second attempt
    c = [0]
    @test retry(foo_error)(c,1) == 7
    @test c[1] == 2

    # 2 failed retry attempts, so exception is raised
    c = [0]
    ex = try retry(foo_error, delays=ExponentialBackOff(n=2))(c,3) catch e; e end
    @test ex.msg == "foo"
    @test c[1] == 3

    c = [0]
    ex = try retry(foo_error, check=(s,e)->(s,isa(e, ErrorException)))(c,2) catch e; e end
    @test typeof(ex) == ErrorException
    @test ex.msg == "foo"
    @test c[1] == 2

    c = [0]
    ex = try retry(foo_error, check=(s,e)->(s,e.msg == "foo"))(c,2) catch e; e end
    @test typeof(ex) == ErrorException
    @test ex.msg == "foo"
    @test c[1] == 2

    # No retry if condition does not match
    c = [0]
    ex = try retry(foo_error, check=(s,e)->(s,e.msg == "bar"))(c,2) catch e; e end
    @test typeof(ex) == ErrorException
    @test ex.msg == "foo"
    @test c[1] == 1

    c = [0]
    ex = try retry(foo_error, check=(s,e)->(s,try e.http_status_code == "503" end != true))(c,2) catch e; e end
    @test typeof(ex) == ErrorException
    @test ex.msg == "foo"
    @test c[1] == 2

    c = [0]
    ex = try retry(foo_error, check=(s,e)->(s,isa(e,SystemError)))(c,2) catch e; e end
    @test typeof(ex) == ErrorException
    @test ex.msg == "foo"
    @test c[1] == 1

    # Functions with keyword arguments
    foo_kwargs(x; y=5) = x + y
    @test retry(foo_kwargs)(3) == 8
    @test retry(foo_kwargs)(3; y=4) == 7
end
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