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ensureEmptyDirectory.test.js
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ensureEmptyDirectory.test.js
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import { assert } from "@jsenv/assert"
import {
urlToFileSystemPath,
ensureEmptyDirectory,
resolveUrl,
writeDirectory,
writeFile,
readDirectory,
writeSymbolicLink,
writeFileSystemNodePermissions,
readFileSystemNodePermissions,
} from "@jsenv/util"
const isWindows = process.platform === "win32"
const tempDirectoryUrl = resolveUrl("./temp/", import.meta.url)
await ensureEmptyDirectory(tempDirectoryUrl)
// on nothing
{
const sourceUrl = resolveUrl("source", tempDirectoryUrl)
await ensureEmptyDirectory(sourceUrl)
const actual = await readDirectory(sourceUrl)
const expected = []
assert({ actual, expected })
await ensureEmptyDirectory(tempDirectoryUrl)
}
// on directory with a file
{
const sourceUrl = resolveUrl("source", tempDirectoryUrl)
const fileUrl = resolveUrl("source/file", tempDirectoryUrl)
await writeDirectory(sourceUrl)
await writeFile(fileUrl)
await ensureEmptyDirectory(sourceUrl)
const actual = await readDirectory(sourceUrl)
const expected = []
assert({ actual, expected })
await ensureEmptyDirectory(tempDirectoryUrl)
}
// on file
{
const sourceUrl = resolveUrl("source", tempDirectoryUrl)
await writeFile(sourceUrl)
try {
await ensureEmptyDirectory(sourceUrl)
throw new Error("should throw")
} catch (actual) {
const expected = new Error(
`ensureEmptyDirectory expect directory at ${urlToFileSystemPath(
sourceUrl,
)}, found file instead`,
)
assert({ actual, expected })
await ensureEmptyDirectory(tempDirectoryUrl)
}
}
// on symlink to directory
{
const sourceUrl = resolveUrl("source", tempDirectoryUrl)
const directoryUrl = resolveUrl("dir", tempDirectoryUrl)
await writeDirectory(directoryUrl)
await writeSymbolicLink(sourceUrl, "./dir")
try {
await ensureEmptyDirectory(sourceUrl)
throw new Error("should throw")
} catch (actual) {
const expected = new Error(
`ensureEmptyDirectory expect directory at ${urlToFileSystemPath(
sourceUrl,
)}, found symbolic-link instead`,
)
assert({ actual, expected })
await ensureEmptyDirectory(tempDirectoryUrl)
}
}
// a file with an hash inside
if (!isWindows) {
const sourceUrl = resolveUrl("source", tempDirectoryUrl)
const fileUrl = resolveUrl("source/file#toto", tempDirectoryUrl)
await writeDirectory(sourceUrl)
await writeFile(fileUrl)
await ensureEmptyDirectory(sourceUrl)
const actual = await readDirectory(sourceUrl)
const expected = []
assert({ actual, expected })
await ensureEmptyDirectory(tempDirectoryUrl)
}
// directory permissions preserved (mtime cannot when there is a file inside)
if (!isWindows) {
const sourceUrl = resolveUrl("source", tempDirectoryUrl)
const fileUrl = resolveUrl("source/file", tempDirectoryUrl)
const permissions = {
owner: { read: true, write: true, execute: true },
group: { read: false, write: false, execute: true },
others: { read: false, write: false, execute: false },
}
await writeDirectory(sourceUrl)
await writeFile(fileUrl)
await writeFileSystemNodePermissions(sourceUrl, permissions)
await ensureEmptyDirectory(sourceUrl)
const permissionsAfter = await readFileSystemNodePermissions(sourceUrl)
const actual = permissionsAfter
const expected = permissions
assert({ actual, expected })
}