protected static async Task <bool> DetectMissingPackagesAsync(IPackageManager packageManager, string reqTxtPath)
{
try {
return(await PipRequirementsUtils.DetectMissingPackagesAsync(
packageManager.Factory.Configuration.InterpreterPath,
reqTxtPath
));
} catch (IOException) {
} catch (OperationCanceledException) {
}
return(false);
}
private async Task DetectReqPkgMissingAsync(PythonVersion pythonInterpreter)
{
string virtualEnvPath = TestData.GetTempPath();
string interpreterExePath = Path.Combine(virtualEnvPath, "Scripts", "python.exe");
string reqTextPath = Path.Combine(virtualEnvPath, "requirements.txt");
var installPackages = new[] { "cookies >= 2.0", "Bottle==0.8.2" };
pythonInterpreter.CreateVirtualEnv(virtualEnvPath, installPackages);
// Test cases for packages not missing
bool isPackageMissing = await PipRequirementsUtils.DetectMissingPackagesAsync(interpreterExePath, reqTextPath);
Assert.IsFalse(isPackageMissing, "Expected no missing packages because requirements.txt does not exist");
File.WriteAllText(reqTextPath, String.Empty);
isPackageMissing = await PipRequirementsUtils.DetectMissingPackagesAsync(interpreterExePath, reqTextPath);
Assert.IsFalse(isPackageMissing, "Expected no missing packages because requirements.txt is empty");
File.Delete(reqTextPath);
File.WriteAllLines(reqTextPath, installPackages);
File.AppendAllLines(reqTextPath,
new string[] {
" ",
"$InvalidLineOfText ",
"#MissingPackageName",
" git+https://myvcs.com/some_dependency@",
"coo kies",
"cookies > = 100 ",
"cookies >= 1.0 <= 2.0 flask == 2.0"
});
isPackageMissing = await PipRequirementsUtils.DetectMissingPackagesAsync(interpreterExePath, reqTextPath);
Assert.IsFalse(isPackageMissing, "Expected no missing packages because all packages are installed and invalid lines should be ignored");
File.Delete(reqTextPath);
File.WriteAllLines(reqTextPath, installPackages, encoding: new UTF8Encoding(true));
isPackageMissing = await PipRequirementsUtils.DetectMissingPackagesAsync(interpreterExePath, reqTextPath);
Assert.IsFalse(isPackageMissing, "Expected no missing packages because all packages are installed and UTF-8 BOM signature should be ignored");
File.Delete(reqTextPath);
// Test cases for packages missing
File.WriteAllLines(reqTextPath,
new string[] { " MissingPackageName " });
isPackageMissing = await PipRequirementsUtils.DetectMissingPackagesAsync(interpreterExePath, reqTextPath);
Assert.IsTrue(isPackageMissing, "Expected missing packages because \"MissingPackageName\" it is not installed");
File.Delete(reqTextPath);
File.WriteAllLines(reqTextPath,
new string[] { "Cookies<=1.0" });
isPackageMissing = await PipRequirementsUtils.DetectMissingPackagesAsync(interpreterExePath, reqTextPath);
Assert.IsTrue(isPackageMissing, "Expected missing packages because \"cookies\" is incorrect version");
File.Delete(reqTextPath);
File.WriteAllLines(reqTextPath,
new string[] { "Cookies>=1.0", "Cookies>=100.0" });
isPackageMissing = await PipRequirementsUtils.DetectMissingPackagesAsync(interpreterExePath, reqTextPath);
Assert.IsTrue(isPackageMissing, "Expected missing package because \"cookies\" has a valid and invalid package version");
File.Delete(reqTextPath);
}
