public async Task GetSearchPaths()
{
Python.AssertInstalled();
var paths = await PythonLibraryPath.GetUncachedDatabaseSearchPathsAsync(Python.InterpreterPath);
Console.WriteLine("Paths for {0}", Python.InterpreterPath);
foreach (var path in paths)
{
Console.WriteLine("{0} {1}", path.Path, path.IsStandardLibrary ? "(stdlib)" : "");
}
// Python.PrefixPath and LibraryPath should be included.
// We can't assume anything else
var expected = Python.IsCPython ? new[] {
Python.PrefixPath.ToLowerInvariant().TrimEnd('\\'),
Path.Combine(Python.PrefixPath, "Lib").ToLowerInvariant()
} : new[] {
Path.Combine(Python.PrefixPath, "Lib").ToLowerInvariant()
};
AssertUtil.ContainsAtLeast(paths.Select(p => p.Path.ToLowerInvariant().TrimEnd('\\')), expected);
// All paths should exist
AssertUtil.ArrayEquals(paths.Where(p => !Directory.Exists(p.Path)).ToList(), new PythonLibraryPath[0]);
// Ensure we can round-trip the entries via ToString/Parse
var asStrings = paths.Select(p => p.ToString()).ToList();
var asPaths = asStrings.Select(PythonLibraryPath.Parse).ToList();
var asStrings2 = asPaths.Select(p => p.ToString()).ToList();
AssertUtil.ArrayEquals(asStrings, asStrings2);
AssertUtil.ArrayEquals(paths, asPaths, (o1, o2) => {
PythonLibraryPath p1 = (PythonLibraryPath)o1, p2 = (PythonLibraryPath)o2;
return(p1.Path == p2.Path && p1.IsStandardLibrary == p2.IsStandardLibrary);
});
var dbPath = Path.Combine(TestData.GetTempPath(), "database.path");
Assert.IsNull(PythonLibraryPath.GetCachedDatabaseSearchPaths(dbPath),
"Should not have found cached paths in an empty directory");
PythonLibraryPath.WriteDatabaseSearchPaths(dbPath, paths);
Assert.IsTrue(File.Exists(dbPath));
var paths2 = PythonLibraryPath.GetCachedDatabaseSearchPaths(dbPath);
AssertUtil.ArrayEquals(paths, paths2, (o1, o2) => {
PythonLibraryPath p1 = (PythonLibraryPath)o1, p2 = (PythonLibraryPath)o2;
return(p1.Path == p2.Path && p1.IsStandardLibrary == p2.IsStandardLibrary);
});
}