fix tests on 1.0

Author: mcabbott

src/trials.jl

@@ -471,7 +471,7 @@ function Base.show(io::IO, ::MIME"text/plain", t::Trial)
 
     # Here nextfloat() ensures both endpoints included, will only matter for
     # artificial cases such as:  Trial(Parameters(), [3,4,5], [0,0,0], 0, 0)
-    fences = range(histmin, nextfloat(float(histmax)), length=histwidth)
+    fences = range(histmin, stop=nextfloat(float(histmax)), length=histwidth)  # stop necc. for Julia 1.0
     bins = histogram_bindata(t.times, fences)
     # Last bin is everything right of last fence, introduce a gap for printing:
     _lastbin = pop!(bins)
@@ -523,7 +523,7 @@ function Base.show(io::IO, ::MIME"text/plain", t::Trial)
     for r in axes(hist, 1)
         println(io)
         printstyled(io, pad, "│", boxspace; color=boxcolor)
-        istop = findlast(!=(' '), view(hist, r, :))
+        istop = findlast(c -> c != ' ', view(hist, r, :))
         for (i, bar) in enumerate(view(hist, r, :))
             i > istop && break  # don't print trailing spaces, as they waste space when line-wrapped
             if i == avgpos

test/TrialsTests.jl

@@ -3,6 +3,11 @@ module TrialsTests
 using BenchmarkTools
 using Test
 
+if !isdefined(@__MODULE__(), :contains)
+    # added in Julia 1.5, defined here to make tests pass on 1.0
+    contains(haystack::AbstractString, needle) = occursin(needle, haystack)
+end
+
 #########
 # Trial #
 #########
@@ -284,8 +289,12 @@ s456 = sprint(show, "text/plain", t456)
 # Compact show & arrays of Trials
 @test sprint(show, t001) == "Trial(3.142 ms)"
 @test sprint(show, t003) == "Trial(0.010 ns)"
-@test sprint(show, "text/plain", [t001, t003]) == "2-element Vector{BenchmarkTools.Trial}:\n 3.142 ms\n 0.010 ns"
-@test_skip sprint(show, "text/plain", [t0]) == "1-element Vector{BenchmarkTools.Trial}:\n ??"
+if VERSION >= v"1.6"  # 1.5 prints Array{T,1}
+    @test sprint(show, "text/plain", [t001, t003]) == "2-element Vector{BenchmarkTools.Trial}:\n 3.142 ms\n 0.010 ns"
+    @test_skip sprint(show, "text/plain", [t0]) == "1-element Vector{BenchmarkTools.Trial}:\n ??"
+    # this is an error on BenchmarkTools v1.2.1, and v0.4.3, probably long before:
+    # MethodError: reducing over an empty collection is not allowed
+end
 
 #=