Powershell属性？

Question

是否可以将一些元数据属性分配给PowerShell宏？我有一组宏,我想将它们封装到逻辑组.我想象的是:

[UnitTest]
function Do-Something()
{
...
}

然后在运行时传递所有加载的宏并将其过滤掉,如:

$macrosInRuntime = Get-Item function: 
$unitTestMacros = $macrosInRuntime | 
    ? {$_.Attributes -contain "UnitTest"} # <-- ???
foreach ($macro in $unitTestMacros)
{
   ....
}

我会很乐意帮助你

Answer 1

有趣的问题...... AFAIK没有这些功能属性.但我认为有一种半hacky方式使用基于注释的帮助属性(可能根本不是hacky,但我不太确定).

<#
.FUNCTIONALITY
    TEST1
#>
function Do-Something1
{}

<#
.FUNCTIONALITY
    TEST2
#>
function Do-Something2
{}

Get-ChildItem Function: | %{
    $fun = $_.Name
    try {
        Get-Help $fun -Functionality TEST* | %{
            switch($_.Functionality) {
                'TEST1' { "$fun is for test 1" }
                'TEST2' { "$fun is for test 2" }
            }
        }
    }
    catch {}
}

输出:

Do-Something1 is for test 1
Do-Something2 is for test 2

也许这种方法在某些情况下可能有用.

另请参阅帮助中基于注释的帮助关键字部分:

man about_Comment_Based_Help

更新 虽然上面的答案被接受,但我仍然不满意.这是另一种绝对不是hacky的方法.它也有一个优势,请参阅评论.此方法使用具有常规名称的额外别名.

# Functions to be used in tests, with any names
function Do-Something1 { "Something1..." }
function Do-Something2 { "Something2..." }

# Aliases that define tests, conventional names are UnitTest-*.
# Note: one advantage is that an alias can be defined anywhere,
# right where a function is defined or somewhere else. The latter
# is suitable in scenarios when we cannot modify the source files
# (or just do not want to).
Set-Alias UnitTest-Do-Something1 Do-Something1
Set-Alias UnitTest-Do-Something2 Do-Something2

# Get UnitTest-* aliases and extract function names for tests.
Get-Alias UnitTest-* | Select-Object -ExpandProperty Definition

# Or we can just invoke aliases themselves.
Get-Alias UnitTest-* | % { & $_}