return true;
            }
        }
        if (containsFiles(new File(buildSrcDir, "src"))) {
            return true;
        }
        LOGGER.info("Ignoring buildSrc directory: does not contain 'settings.gradle[.kts]', 'build.gradle[.kts]', or a 'src' directory.");
        return false;
    }

    private static boolean containsFiles(File directory) {
        if (!directory.exists() || !directory.isDirectory()) {

package y

import (
	"bytes"
	"io"
)

func Y(w io.Writer, b []byte) {
	if !bytes.Equal(b, []byte("y")) {
		w.Write([]byte("not equal"))
	}
}
-- empty/empty.go --
package empty
-- contains_files/contains_files.go --
package main

import (
	"fmt"
	"path/filepath"
	"io/ioutil"
	"os"
)

func main() {
	infos, err := ioutil.ReadDir(filepath.Clean(os.Args[1]))
	if err != nil {

        } catch (IllegalStateException e) {
            assertThat(e.getMessage(), equalTo("Expected collection-display-name to contain exactly one file, however, it contains no files."))
        }
    }

    void containsFile() {
        def file1 = new File("f1")
        def collection = new TestFileCollection(file1)

        expect:
        collection.contains(file1)
        !collection.contains(new File("f2"))
    }