package file_path
A library for typed manipulation of UNIX-style file paths
Install
Dune Dependency
Authors
Maintainers
Sources
file_path-v0.15.0.tar.gz
sha256=4c44185450fffa919bf900db1b54f2788f6831048997df390ef3bcf58395c41c
doc/src/file_path.file_path_io_test/file_path_io_test.ml.html
Source file file_path_io_test.ml
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open! Core open! Async open! Expect_test_helpers_core open! Expect_test_helpers_async module type IO = sig include File_path_io.S (** Convert I/O results to a deferred. *) val async : 'a io -> 'a Deferred.t end module Test_file_path_io (IO : IO) : File_path_io.S with type 'a io := 'a IO.io = struct let executable_name = IO.executable_name let%expect_test "[executable_name]" = require_equal [%here] (module String) Sys.executable_name (File_path.to_string (force IO.executable_name)); [%expect {| |}]; return () ;; let read_file = IO.read_file let write_file = IO.write_file let%expect_test "[read_file] and [write_file]" = within_temp_dir (fun () -> let path = File_path.of_string "file.txt" in let write_contents = "you do the hokey pokey and you turn yourself around" in let%bind () = write_file path ~contents:write_contents |> IO.async in let%bind read_contents = read_file path |> IO.async in require_equal [%here] (module String) write_contents read_contents; [%expect {| |}]; return ()) ;; open struct (* Helpers for load/save tests. *) let test_load_save m original ~load ~save = within_temp_dir (fun () -> let path = File_path.of_string "data.sexp" in let%bind () = save path original |> IO.async in let%bind contents = read_file path |> IO.async in print_string contents; let%bind round_trip = load path |> IO.async in require_equal [%here] m original round_trip; return ()) ;; end let load_sexp = IO.load_sexp let save_sexp = IO.save_sexp let%expect_test "[load_sexp] and [save_sexp]" = let test string = test_load_save (module Sexp) ~load:load_sexp ~save:save_sexp (Sexp.of_string string) in let%bind () = test "()" in [%expect {| () |}]; let%bind () = test "((key value) (other-key other-value) (another-key another-value) \ (yet-another-key yet-another-value))" in [%expect {| ((key value) (other-key other-value) (another-key another-value) (yet-another-key yet-another-value)) |}]; return () ;; let load_sexps = IO.load_sexps let save_sexps = IO.save_sexps let%expect_test "[load_sexps] and [save_sexps]" = let test string = test_load_save (module struct type t = Sexp.t list [@@deriving equal, sexp_of] end) ~load:load_sexps ~save:save_sexps (Sexp.of_string_many string) in let%bind () = test "" in [%expect {| |}]; let%bind () = test "(key value) (other-key other-value) (another-key another-value) \ (yet-another-key yet-another-value)" in [%expect {| (key value) (other-key other-value) (another-key another-value) (yet-another-key yet-another-value) |}]; return () ;; let load_as_sexp = IO.load_as_sexp let save_as_sexp = IO.save_as_sexp let%expect_test "[load_as_sexp] and [save_as_sexp]" = let module M = struct type t = string Int.Map.t [@@deriving equal, sexp] end in let test alist = test_load_save (module M) ~load:(load_as_sexp ~of_sexp:M.t_of_sexp) ~save:(save_as_sexp ~sexp_of:M.sexp_of_t) (Int.Map.of_alist_exn alist) in let%bind () = test [] in [%expect {| () |}]; let%bind () = test [ 1, "a unit"; 2, "a prime number"; 3, "a prime number"; 4, "a composite number" ] in [%expect {| ((1 "a unit") (2 "a prime number") (3 "a prime number") (4 "a composite number")) |}]; return () ;; let load_as_sexps = IO.load_as_sexps let save_as_sexps = IO.save_as_sexps let%expect_test "[load_as_sexps] and [save_as_sexps]" = let module M = struct type t = string * string list [@@deriving equal, sexp] end in let test list = test_load_save (module struct type t = M.t list [@@deriving equal, sexp_of] end) ~load:(load_as_sexps ~of_sexp:M.t_of_sexp) ~save:(save_as_sexps ~sexp_of:M.sexp_of_t) list in let%bind () = test [] in [%expect {| |}]; let%bind () = test [ "do", [ "a deer"; "a female deer" ] ; "re", [ "a drop of golden sun" ] ; "mi", [ "a name"; "I call myself" ] ] in [%expect {| (do ("a deer" "a female deer")) (re ("a drop of golden sun")) (mi ("a name" "I call myself")) |}]; return () ;; let exists = IO.exists let exists_exn = IO.exists_exn let is_directory = IO.is_directory let is_directory_exn = IO.is_directory_exn let is_file = IO.is_file let is_file_exn = IO.is_file_exn let%expect_test "[exists] and [is_directory] and [is_file]" = let module M = struct type t = [ `Yes | `No | `Unknown ] [@@deriving equal, sexp_of] end in let test path = let%bind exists_exn = exists_exn path |> IO.async in let%bind is_file_exn = is_file_exn path |> IO.async in let%bind is_directory_exn = is_directory_exn path |> IO.async in print_s [%sexp { path : File_path.t ; exists_exn : bool ; is_file_exn : bool ; is_directory_exn : bool }]; let%bind exists = exists path |> IO.async in let%bind is_file = is_file path |> IO.async in let%bind is_directory = is_directory path |> IO.async in require_equal [%here] (module M) exists (if exists_exn then `Yes else `No); require_equal [%here] (module M) is_file (if is_file_exn then `Yes else `No); require_equal [%here] (module M) is_directory (if is_directory_exn then `Yes else `No); return () in within_temp_dir (fun () -> let%bind () = let file = File_path.of_string "file" in let%bind () = run "touch" [ (file :> string) ] in test file in [%expect {| ((path file) (exists_exn true) (is_file_exn true) (is_directory_exn false)) |}]; let%bind () = let directory = File_path.of_string "dir" in let%bind () = run "mkdir" [ (directory :> string) ] in test directory in [%expect {| ((path dir) (exists_exn true) (is_file_exn false) (is_directory_exn true)) |}]; let%bind () = test (File_path.of_string "nonexistent") in [%expect {| ((path nonexistent) (exists_exn false) (is_file_exn false) (is_directory_exn false)) |}]; let%bind () = test (File_path.of_string "/dev/null") in [%expect {| ((path /dev/null) (exists_exn true) (is_file_exn false) (is_directory_exn false)) |}]; let%bind () = let symlink = File_path.of_string "symlink" in let%bind () = run "ln" [ "-s"; "/"; (symlink :> string) ] in test symlink in [%expect {| ((path symlink) (exists_exn true) (is_file_exn false) (is_directory_exn true)) |}]; return ()) ;; let unlink = IO.unlink let%expect_test "[unlink]" = within_temp_dir (fun () -> let path = File_path.of_string "my-file" in let%bind () = run "touch" [ (path :> string) ] in let%bind () = run "ls" [ "-aF" ] in [%expect {| ./ ../ my-file |}]; let%bind () = unlink path |> IO.async in let%bind () = run "ls" [ "-aF" ] in [%expect {| ./ ../ |}]; return ()) ;; let rename = IO.rename let%expect_test "[rename]" = within_temp_dir (fun () -> let src = File_path.of_string "source" in let dst = File_path.of_string "destination" in let%bind () = run "touch" [ (src :> string) ] in let%bind () = run "ls" [ "-aF" ] in [%expect {| ./ ../ source |}]; let%bind () = rename ~src ~dst |> IO.async in let%bind () = run "ls" [ "-aF" ] in [%expect {| ./ ../ destination |}]; return ()) ;; let mkdir = IO.mkdir let rmdir = IO.rmdir let%expect_test "[mkdir] and [rmdir]" = within_temp_dir (fun () -> let path = File_path.of_string "etc" in let%bind () = run "ls" [ "-aF" ] in [%expect {| ./ ../ |}]; let%bind () = mkdir path |> IO.async in let%bind () = run "ls" [ "-aF" ] in [%expect {| ./ ../ etc/ |}]; let%bind () = rmdir path |> IO.async in let%bind () = run "ls" [ "-aF" ] in [%expect {| ./ ../ |}]; return ()) ;; let chdir = IO.chdir let getcwd = IO.getcwd let%expect_test "[chdir] and [getcwd]" = within_temp_dir (fun () -> let subdir = File_path.Relative.of_string "subdir" in let%bind () = Unix.mkdir (subdir :> string) in let%bind tmp = getcwd () |> IO.async in let%bind () = chdir (File_path.of_relative subdir) |> IO.async in let%bind tmp_slash_subdir = getcwd () |> IO.async in require_equal [%here] (module File_path.Absolute) tmp_slash_subdir (File_path.Absolute.append tmp subdir); [%expect {| |}]; return ()) ;; let ls_dir = IO.ls_dir let%expect_test "[ls_dir]" = with_temp_dir (fun tmp -> let%bind () = run "touch" [ tmp ^/ "regular-file" ] in let%bind () = run "mkdir" [ tmp ^/ "subdirectory" ] in let%bind () = run "touch" [ tmp ^/ "subdirectory/another-file" ] in let%bind ls = ls_dir (File_path.of_string tmp) |> IO.async in print_s [%sexp (ls : File_path.Part.t list)]; [%expect {| (regular-file subdirectory) |}]; return ()) ;; let make_absolute_under_cwd = IO.make_absolute_under_cwd let%expect_test "[make_absolute_under_cwd]" = within_temp_dir (fun () -> let%bind tmp = Sys.getcwd () in let test string = let path = File_path.of_string string in let%bind abspath = make_absolute_under_cwd path |> IO.async in File_path.Absolute.to_string abspath |> replace ~pattern:tmp ~with_:"$TMP" |> print_endline; return () in let%bind () = test "a/relative/path" in [%expect {| $TMP/a/relative/path |}]; let%bind () = test "/usr/share/dict/words" in [%expect {| /usr/share/dict/words |}]; return ()) ;; let make_relative_to_cwd = IO.make_relative_to_cwd let make_relative_to_cwd_exn = IO.make_relative_to_cwd_exn let make_relative_to_cwd_if_possible = IO.make_relative_to_cwd_if_possible let%expect_test "[make_relative_to_cwd]" = within_temp_dir (fun () -> let test string = let path = File_path.of_string string in let%bind relative_to_cwd = make_relative_to_cwd path |> IO.async in let%bind relative_to_cwd_exn = Deferred.Or_error.try_with (fun () -> make_relative_to_cwd_exn path |> IO.async) in let%bind relative_to_cwd_if_possible = make_relative_to_cwd_if_possible path |> IO.async in print_s [%sexp (relative_to_cwd_if_possible : File_path.t)]; require_equal [%here] (module struct type t = File_path.Relative.t option [@@deriving equal, sexp_of] end) relative_to_cwd (Or_error.ok relative_to_cwd_exn); require_equal [%here] (module File_path) relative_to_cwd_if_possible (Option.value_map relative_to_cwd ~f:File_path.of_relative ~default:path); return () in let%bind tmp = Sys.getcwd () in let%bind () = test tmp in [%expect {| . |}]; let%bind () = test (tmp ^/ "path/to/file") in [%expect {| path/to/file |}]; let%bind () = test "/usr/share/dict/words" in [%expect {| /usr/share/dict/words |}]; let%bind () = test "a/relative/path" in [%expect {| a/relative/path |}]; return ()) ;; let realpath = IO.realpath let realpath_absolute = IO.realpath_absolute let realpath_relative_to_cwd = IO.realpath_relative_to_cwd let%expect_test "[realpath_relative_to_cwd]" = with_temp_dir (fun tmp -> (* helpers *) let in_dir dir f = let%bind cwd = Sys.getcwd () in Monitor.protect (fun () -> let%bind () = Unix.chdir dir in f ()) ~finally:(fun () -> Unix.chdir cwd) in let abspath string = File_path.Absolute.of_string (tmp ^/ string) in let relpath string = File_path.Relative.of_string string in let irrelevant_dir = Filename.temp_dir_name in let fns = (* all the [realpath*] functions, called with both abspaths and relpaths *) let realpath_absolute_of_abspath string = realpath_absolute (abspath string) |> IO.async in let realpath_of_abspath string = realpath (abspath string :> File_path.t) ~relative_to:(File_path.Absolute.of_string irrelevant_dir) |> IO.async in let realpath_of_relpath string = realpath (relpath string :> File_path.t) ~relative_to:(File_path.Absolute.of_string tmp) |> IO.async in let realpath_relative_to_cwd_of_abspath string = in_dir irrelevant_dir (fun () -> realpath_relative_to_cwd (abspath string :> File_path.t) |> IO.async) in let realpath_relative_to_cwd_of_relpath string = in_dir tmp (fun () -> realpath_relative_to_cwd (relpath string :> File_path.t) |> IO.async) in [ realpath_absolute_of_abspath ; realpath_of_abspath ; realpath_of_relpath ; realpath_relative_to_cwd_of_abspath ; realpath_relative_to_cwd_of_relpath ] in let test string = let%bind results = Deferred.List.map fns ~f:(fun fn -> Deferred.Or_error.try_with ~extract_exn:true (fun () -> fn string)) in match List.all_equal results ~equal:[%equal: (File_path.Absolute.t, (Error.t[@equal.ignore])) Result.t] with | Some result -> [%sexp (result : File_path.Absolute.t Or_error.t)] |> replace_s ~pattern:tmp ~with_:"$TMP" |> print_s; return () | None -> print_cr [%here] [%message "realpath results differ" (results : File_path.Absolute.t Or_error.t list)]; return () in (* test tmp directory itself *) let%bind () = test "." in [%expect {| (Ok $TMP) |}]; (* test a nonexistent path *) let%bind () = test "nonexistent" in [%expect {| (Error (Unix.Unix_error "No such file or directory" realpath $TMP/nonexistent)) |}]; (* test a normal file *) let%bind () = run "touch" [ tmp ^/ "real-file" ] in let%bind () = test "real-file" in [%expect {| (Ok $TMP/real-file) |}]; (* test a symlink to a normal file *) let%bind () = Unix.symlink ~link_name:(tmp ^/ "link-file") ~target:"real-file" in let%bind () = test "link-file" in [%expect {| (Ok $TMP/real-file) |}]; (* test a normal directory *) let%bind () = Unix.mkdir (tmp ^/ "a") in let%bind () = Unix.mkdir (tmp ^/ "a/b") in let%bind () = test "a/b" in [%expect {| (Ok $TMP/a/b) |}]; (* test a symlink to a directory *) let%bind () = Unix.mkdir (tmp ^/ "c") in let%bind () = Unix.symlink ~link_name:(tmp ^/ "c/d") ~target:"../a" in let%bind () = test "c/d" in [%expect {| (Ok $TMP/a) |}]; return ()) ;; end module Test_file_path_core = Test_file_path_io (struct include File_path_unix type 'a io = 'a let async io = Deferred.return io end) module Test_file_path_async = Test_file_path_io (struct include File_path_unix_async type 'a io = 'a Deferred.t let async io = io end)
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