update tests

Author: oscardssmith

test/string.jl

@@ -1,10 +1,19 @@
-@testset "string" begin
+function test_string_and_show(x, s)
+  b = IOBuffer
+  show(b, x)
+  @test String(take!(b)) == string(x) == s
+end
 
-  @test string(Double64(pi)) == "3.14159265358979323846264338327950588"
+@testset "string" begin
+  test_string_and_show(Double64(pi), "3.14159265358979323846264338327950588")
 
-  @test string(Double64(2.3045377697175683e-24, -1.5436846311151439e-40)) == "2.30453776971756809999999999999975586e-24"
+  x = Double64(2.3045377697175683e-24, -1.5436846311151439e-40)
+  test_string_and_show(x, "2.30453776971756809999999999999975586e-24")
 
-  @test string(ComplexDF64(1.0,1.0)) == "1.0 + 1.0im"
+  test_string_and_show(ComplexDF64(1.0,1.0), "1.0 + 1.0im")
+
+  x = Complex{Double64}(pi)+Double64(pi)*im
+  test_string_and_show(x, "3.14159265358979323846264338327950588 + 3.14159265358979323846264338327950588im")
 
   @test stringtyped(Double64(pi)) == "Double64(3.141592653589793, 1.2246467991473532e-16)"