d命名单元测试

原文

通常在独立单元测试上工作,因为速度和更少输出,只想运行一个.而通常在文件中有几个单元测试.急需要命名单元测试.
只需要,version(newFeature) unittest {}.

#! /usr/bin/env dub
/++ dub.sdl:
    dflags "-preview=shortenedMethods"
    configuration "release" {
        targetType "executable"
    }
    configuration "unittest" {
        targetType "library"
        dependency "silly" version="~>1.1.1"
    }
+/

int factorial(int n) => n <= 1 ? 1 : n * factorial(n - 1);

@("!5") unittest {
    assert(factorial(5) == 120);
}

@("!0 and !1") unittest {
    assert(factorial(0) == 1);
    assert(factorial(1) == 1);
}

version (unittest) {
} else {
    void main(string[] args) {
        import std.conv : to;
        import std.stdio : writeln;

        writeln(args[1].to!int.factorial);
    }
}
//用法:

$ ./fact.d 10
3628800
$ dub -q test --single fact.d
 ? fact !5
 ? fact !0 and !1

Summary: 2 passed, 0 failed in 0 ms