add windows test suite downloader

test/download_suite

@@ -9,7 +9,7 @@ fi
 olddir="$(pwd)"
 cd "$wdir" || exit $?
 
-url="https://github.com/Francesco149/oppai-ng/releases/download/2.3.2/test_suite_2019-02-19.tar.gz"
+url="$(cat ./suite_url)"
 
 if [ $(find test_suite 2>/dev/null | tail -n +2 | wc -l) = "0" ]; then
   curl -LO "$url" || exit $?

test/download_suite.ps1

@@ -0,0 +1,19 @@
+# you must allow script execution by running
+# 'Set-ExecutionPolicy RemoteSigned' in an admin powershell
+# 7zip is also required (choco install 7zip and add it to path)
+
+$url = Get-Content .\suite_url -Raw
+$dir = Split-Path -Parent $MyInvocation.MyCommand.Definition
+Push-Location "$dir"
+
+if ((Test-Path .\test_suite) -and (Get-ChildItem .\test_suite | Measure-Object).Count -gt 0) {
+  Write-Host "using existing test_suite"
+} else {
+  # my windows 7 install doesn't support Tls3
+  [Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12
+  (New-Object System.Net.WebClient).DownloadFile($url, "$dir\test_suite.tar.gz")
+  &7z x .\test_suite.tar.gz
+  &7z x .\test_suite.tar
+}
+
+Pop-Location

test/suite_url

@@ -0,0 +1 @@
+https://github.com/Francesco149/oppai-ng/releases/download/2.3.2/test_suite_2019-02-19.tar.gz