File dir2 = newFile("dir-1/dir-2");

    assertThat(Files.fileTraverser().breadthFirst(rootDir))
        .containsExactly(rootDir, fileA, fileB, dir1, dir2);
  }

  @CanIgnoreReturnValue
  private File newDir(String name) {
    File file = new File(rootDir, name);
    file.mkdir();
    return file;
  }

  @CanIgnoreReturnValue
  private File newFile(String name) throws IOException {

    pathb = tmp_path / "testb.txt"
    patha.write_text("<file content>")
    pathb.write_text("<file b content>")

    client = TestClient(app)
    with patha.open("rb") as filea, pathb.open("rb") as fileb:
        response = client.post(
            "/files/",
            data={"token": "foo"},
            files={"file": filea, "fileb": ("testb.txt", fileb, "text/plain")},
        )

		t.Errorf("texta value = %q, want %q", g, e)
	}
	fd := testFile(t, f.File["filea"][0], "filea.txt", fileaContents)
	if _, ok := fd.(*os.File); ok {
		t.Error("file is *os.File, should not be")
	}
	fd.Close()
	fd = testFile(t, f.File["fileb"][0], "fileb.txt", filebContents)
	if _, ok := fd.(*os.File); !ok {
		t.Errorf("file has unexpected underlying type %T", fd)
	}
	fd.Close()
}

        then:
        outputs.files.files == files('a', "b")
        outputs.fileProperties*.propertyName == ['prop.fileA', 'prop.fileB']
        outputs.fileProperties*.propertyFiles*.files.flatten() == [file("a"), file("b")]
        outputs.fileProperties*.outputFile == [file("a"), file("b")]
        outputs.fileProperties*.outputType == [type, type]
        where:
        name    | type

    pathb = tmp_path / "testb.txt"
    patha.write_text("<file content>")
    pathb.write_text("<file b content>")

    client = TestClient(app)
    with patha.open("rb") as filea, pathb.open("rb") as fileb:
        response = client.post(
            "/files/",
            data={"token": "foo"},
            files={"file": filea, "fileb": ("testb.txt", fileb, "text/plain")},
        )

    pathb = tmp_path / "testb.txt"
    patha.write_text("<file content>")
    pathb.write_text("<file b content>")

    client = TestClient(app)
    with patha.open("rb") as filea, pathb.open("rb") as fileb:
        response = client.post(
            "/files/",
            data={"token": "foo"},
            files={"file": filea, "fileb": ("testb.txt", fileb, "text/plain")},
        )

	checkNumFiles := func(want int) {
		got := 0
		fset.Iterate(func(*File) bool { got++; return true })
		if got != want {
			t.Errorf("Iterate called %d times, want %d", got, want)
		}
	}

	apos3 := a.Pos(3)
	bpos3 := b.Pos(3)
	checkPos(apos3, "fileA:1:4")
	checkPos(bpos3, "fileB:1:4")
	checkNumFiles(2)

	// After removal, queries on fileA fail.
	fset.RemoveFile(a)
	checkPos(apos3, "-")

	assertMem := func(n string, fd multipart.File) {
		if _, ok := fd.(*os.File); ok {
			t.Error(n, " is *os.File, should not be")
		}
	}
	fda := testMultipartFile(t, req, "filea", "filea.txt", fileaContents)
	defer fda.Close()
	assertMem("filea", fda)
	fdb := testMultipartFile(t, req, "fileb", "fileb.txt", filebContents)
	defer fdb.Close()
	if allMem {
		assertMem("fileb", fdb)
	} else {

import java.nio.file.Paths

// tag::simple-params[]
val collection: FileCollection = layout.files(
    "src/file1.txt",
    File("src/file2.txt"),
    listOf("src/file3.csv", "src/file4.csv"),
    Paths.get("src", "file5.txt")
)
// end::simple-params[]

file("src").mkdirs()
file("src/dir1").mkdirs()
file("src/file1.txt").mkdirs()
file("src2").mkdirs()
file("src2/dir1").mkdirs()
file("src2/dir2").mkdirs()

// tag::closure[]

        given:
        previousExecution()

        when:
        file('inputs/file1.txt') << "changed content"
        file('inputs/file2.txt').delete()
        file('inputs/file3.txt') << "new file 3"
        file('inputs/file4.txt') << "new file 4"

        then:
        executesIncrementally(
            modified: ['file1.txt'],
            removed: ['file2.txt'],