Tests: normalise the fixtures path for Windows

[compnerd]

Ensure that we normalise the path when we substitute the path into the results to properly remove the basename of the fixture.

[jpsim]

Approach looks ok, I'll merge when you fix the remaining issues causing tests to fail.

[compnerd]

@jpsim any idea why this would be failing?

[jpsim]

any idea why this would be failing?

It's adding a trailing / on macOS/Linux which wasn't there before.

This fixes the macOS/Linux tests:

// Strip out fixtures directory since it's dependent on the test machine's setup
let escapedFixturesDirectory = URL(fileURLWithPath: rootDirectory)
    .standardizedFileURL
    .withUnsafeFileSystemRepresentation { String(cString: $0!) }
    .replacingOccurrences(of: #"\"#, with: #"\\"#)
    .replacingOccurrences(of: "/", with: #"\/"#)
let escapedJSONString = jsonString.replacingOccurrences(of: escapedFixturesDirectory, with: "")

Is it ok to have the Windows paths skip adding the trailing path separator?

[compnerd]

IIRC it was needed ... but I think that we can go with this for now, and come back around to when we can start running the tests? That will give us a better view of the failure.

[compnerd]

-  "Subscript.swift" : {
+  "\/Subscript.swift" : {

This diff makes me think that the trailing suffix is important?

[jpsim]

We can just do a separate codepath for Windows for the time being:

    // Strip out fixtures directory since it's dependent on the test machine's setup
#if os(Windows)
    let escapedFixturesDirectory = URL(fileURLWithPath: rootDirectory)
        .standardizedFileURL
        .withUnsafeFileSystemRepresentation { String(cString: $0!) }
        .replacingOccurrences(of: #"\"#, with: #"\\"#)
        .replacingOccurrences(of: "/", with: #"\/"#)
#else
    let escapedFixturesDirectory = rootDirectory.replacingOccurrences(of: "/", with: #"\/"#)
#endif
    let escapedJSONString = jsonString.replacingOccurrences(of: escapedFixturesDirectory, with: "")

Adjust that for whatever you need on the Windows side.