targetSnapshot.get().absolutePath == targetFile.absolutePath
        targetSnapshot.get().name == targetFile.name
        assertInterned(targetSnapshot.get())
    }

    def "snapshot accessed via symlink is not relocated"() {
        def sourceFile = temporaryFolder.file("source.txt")
        def targetFile = temporaryFolder.file("target.txt")
        def sourceSnapshot = createInitialRootNode(sourceFile.absolutePath, VIA_SYMLINK)

@CompileStatic
class UnitTestPreconditions {

    static final class Symlinks implements TestPrecondition {
        @Override
        boolean isSatisfied() {
            return satisfied(MacOs) || satisfied(Linux)
        }
    }

    static final class NoSymlinks implements TestPrecondition {
        @Override
        boolean isSatisfied() {
            return notSatisfied(Symlinks)
        }
    }

        // advantages. (If OpenOptions were passed we can't, because Files.lines doesn't have an
        // overload taking OpenOptions, meaning we can't guarantee the same behavior w.r.t. things
        // like following/not following symlinks.)
        return new AsCharSource(charset) {
          @SuppressWarnings("FilesLinesLeak") // the user needs to close it in this case
          @Override
          public Stream<String> lines() throws IOException {

// Check if the given error corresponds to the ENAMETOOLONG (name too long).
func isSysErrTooLong(err error) bool {
	return errors.Is(err, syscall.ENAMETOOLONG)
}

// Check if the given error corresponds to the ELOOP (too many symlinks).
func isSysErrTooManySymlinks(err error) bool {
	return errors.Is(err, syscall.ELOOP)
}

// Check if the given error corresponds to ENOTEMPTY for unix,
// EEXIST for solaris variants,

                    if (relativePath.isRoot()) {
                        return false;
                    }
                    // Otherwise check for newly added broken symlinks and unreadable files
                    return hasNewContent(relativePath, missingSnapshot);
                }
            });
            if (newContent) {
                overlappingPath = snapshot.getAbsolutePath();

  - A Closure that returns any supported value.
  - A Callable that returns any supported value.
  - A Provider that provides any supported value.""")
    }

    @Test
    @Requires(UnitTestPreconditions.Symlinks)
    void reportsSymLinkWhichPointsToNothing() {
        TestFile link = testFile('src/file')
        link.createLink(testFile('missing'))

        Assert.assertFalse(link.isDirectory())

	testenv.MustHaveSymlink(t)

	tmp := t.TempDir()
	tmpfs := os.DirFS(tmp)

	if err := os.WriteFile(filepath.Join(tmp, "hello"), []byte("hello, world\n"), 0644); err != nil {
		t.Fatal(err)
	}

	if err := os.Symlink(filepath.Join(tmp, "hello"), filepath.Join(tmp, "hello.link")); err != nil {
		t.Fatal(err)
	}

	if err := TestFS(tmpfs, "hello", "hello.link"); err != nil {
		t.Fatal(err)
	}
}

func TestDash(t *testing.T) {

        when:
        run "copy"
        then:
        file("build/tmp/testchild").mode == mode
        where:
        mode << [0755, 0776]
    }

    @Requires(UnitTestPreconditions.Symlinks)
    def "symlinked file permissions are preserved in copy action"() {
        given:
        def mode = 0746
        def testSourceFile = file(testFileName)
        testSourceFile << "test file content"

=== "Linux, macOS"

    <div class="termy">

    ```console
    $ flit install --deps develop --symlink

    ---> 100%
    ```

    </div>

=== "Windows"

    Si vous êtes sous Windows, utilisez `--pth-file` au lieu de `--symlink` :

    <div class="termy">

    ```console
    $ flit install --deps develop --pth-file

    ---> 100%
    ```

			if err != nil && os.IsNotExist(err) {
				t.Fatalf("%v: visible symlink does not exist: %v", tc.name, visiblePath)
			} else if err != nil {
				t.Fatalf("%v: unable to read symlink %v: %v", tc.name, dataDirPath, err)
			}

			if expectedDest != destination {
				t.Fatalf("%v: symlink destination %q not same with expected data dir %q", tc.name, destination, expectedDest)
			}
		}
	}
}