Routing of AssertError messages

[Tejas]

On Saturday, 31 July 2021 at 12:03:49 UTC, DLearner wrote:
> Hi
>
> This may be due to Windows, not DMD.
>
> Please see code below (held in test.d):
>
> ```
> void main() {
>    import std.stdio;
>
>    writeln("Test");
>    assert(false, "TestAssert");
> }
> ```
> `
> dmd -i -run test.d
> `
> results in both "Test" and the "TestAssert" string (and trace) 
> being routed to screen.
>
> But
> `
> dmd -i -run test.d > op.txt
> `
> results in only "Test" going into op.txt, the "TestAssert" 
> string (and trace) being routed to screen as before.
>
> I expected both "Test" and the "TestAssert" string (and trace) 
> to go into op.txt.
>
> The idea was to use op.txt as documentation of a successful 
> test of the "TestAssert" string.
>
> Best regards

Please read the docs that jfronden referred to.

     If you want a quick hack, use this:
```d
     const(char)[] falseAssertMsg(string s){
         writeln(s);
         return "";
     }
     void main() {
        import std.stdio;

        writeln("Test");
        assert(false, falseAssertMsg("TestAssert failed in 
main()"));
     }

```
     There should be a better way of doing this though.