backport tests.

JuliaLang · Oct 21, 2022 · 0d28d0b · 0d28d0b
1 parent 66e7683
commit 0d28d0b
Showing 1 changed file with 13 additions and 0 deletions.
diff --git a/test/show.jl b/test/show.jl
@@ -2355,3 +2355,16 @@ end
     @test sprint(show, setenv(setcpuaffinity(`true`, [1, 2]), "A" => "B")) ==
           """setenv(setcpuaffinity(`true`, [1, 2]),["A=B"])"""
 end
+
+# Test that alignment takes into account unicode and computes alignment without
+# color/formatting.
+
+struct ColoredLetter; end
+Base.show(io::IO, ces::ColoredLetter) = Base.printstyled(io, 'A'; color=:red)
+
+struct ⛵; end
+Base.show(io::IO, ces::⛵) = Base.print(io, '⛵')
+
+@test Base.alignment(stdout, ⛵()) == (0, 2)
+@test Base.alignment(IOContext(IOBuffer(), :color=>true), ColoredLetter()) == (0, 1)
+@test Base.alignment(IOContext(IOBuffer(), :color=>false), ColoredLetter()) == (0, 1)