fixed show for 0

Author: jishnub

Project.toml

@@ -1,7 +1,7 @@
 name = "MultiplesOfPi"
 uuid = "b749d01f-fee9-4313-9f11-89ddf7ea9d58"
 authors = ["Jishnu Bhattacharya", "Center for Space Science", "New York University Abu Dhabi"]
-version = "0.2.0"
+version = "0.2.1"
 
 [compat]
 julia = "1"

src/MultiplesOfPi.jl

@@ -124,7 +124,8 @@ Base.convert(::Type{PiTimes{T}},p::PiTimes) where {T} = PiTimes{T}(p.x)
 
 function Base.show(io::IO,p::PiTimes)
 	pxstr = isone(p.x) ? "" : string(p.x)
-	print(io,pxstr,"Pi")
+	str = iszero(p) ? string(p.x) : pxstr*"Pi"
+	print(io,str)
 end
 
 end # module

test/runtests.jl

@@ -346,4 +346,10 @@ end
     @test String(take!(io)) == "Pi"
     show(io,2Pi)
     @test String(take!(io)) == "2Pi"
+    show(io,0*Pi)
+    @test String(take!(io)) == "0"
+    show(io,im*Pi)
+    @test String(take!(io)) == "0 + Pi*im"
+    show(io,Pi + im*(2//3)Pi)
+    @test String(take!(io)) == "Pi + 2//3Pi*im"
 end