CompletionResult tooltips aren't displayed when tooltip text == ListItem/CompletionText

[thegraffix]

Prerequisites

• Write a descriptive title.
• Make sure you are able to repro it on the latest released version
• Search the existing issues, especially the pinned issues.

Exception report

N/A

Screenshot

ISE doesn't filter out tooltips when the tooltip text is the same as the ListItem/CompletionText, but PSReadLine does.

Explorer:

Console:

ISE:

Environment data

PS Version: 5.1.19041.3803
PS HostName: ConsoleHost
PSReadLine Version: 2.3.4
PSReadLine EditMode: Windows
OS: 10.0.19041.1 (WinBuild.160101.0800)
BufferWidth: 170
BufferHeight: 3000

Steps to reproduce

This is the test function I used:

function Test-ToolTip
{
    [CmdletBinding()]
    param (
        [ArgumentCompleter({
            param ($CommandName, $ParameterName, $WordToComplete, $CommandAst, $FakeBoundParameters)
            Get-ChildItem -Path 'C:\Test' -File | Where-Object {$_.Name -like "*$WordToComplete*"} | ForEach-Object {
                [System.Management.Automation.CompletionResult]::new($_, $_, 'ParameterValue', $_)
            }
        })]
        [string]$FileName
    )

    Write-Output $FileName
}

Expected behavior

Tooltips are displayed even when the tooltip text is the same as the ListItem/CompletionText.

Actual behavior

Tooltips are not displayed when the tooltip text is the same as the ListItem/CompletionText.

[daxian-dbw]

This is by design. PSReadLine chooses to not render the tooltips if it doesn't provide additional information.