tools/src/cmd/cts/common/testutils.go

// Copyright 2025 The Dawn & Tint Authors
//
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package common

import (
	"path/filepath"

	"dawn.googlesource.com/dawn/tools/src/fileutils"
	"dawn.googlesource.com/dawn/tools/src/oswrapper"
)

func CreateFSTestOSWrapperWithFakeDefaultPaths() (oswrapper.FSTestOSWrapper, error) {
	wrapper := oswrapper.CreateFSTestOSWrapper()
	err := SetUpFakeDefaultPaths(wrapper)
	if err != nil {
		return wrapper, err
	}
	return wrapper, nil
}

func SetUpFakeDefaultPaths(fsWriter oswrapper.FSTestOSWrapper) error {
	err := fileutils.SetUpFakeDawnRoot(fsWriter)
	if err != nil {
		return err
	}
	root := fileutils.DawnRoot(fsWriter)

	defaultFiles := []string{
		RelativeExpectationsPath,
		RelativeCompatExpectationsPath,
		RelativeSlowExpectationsPath,
		RelativeTestListPath,
	}
	for _, relativePath := range defaultFiles {
		fullPath := filepath.Join(root, relativePath)
		err = fsWriter.MkdirAll(filepath.Dir(fullPath), 0o666)
		if err != nil {
			return err
		}
		f, err := fsWriter.Create(fullPath)
		if err != nil {
			return err
		}
		f.Close()
	}

	defaultDirectories := []string{
		RelativeCTSPath,
	}
	for _, relativePath := range defaultDirectories {
		fullPath := filepath.Join(root, relativePath)
		err = fsWriter.MkdirAll(fullPath, 0o666)
		if err != nil {
			return err
		}
	}
	return nil
}