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|
(* Various tests for the OS.Path structure. The Unix tests are taken largely
from the documentation. The Windows tests are inferred from the documentation
which isn't always clear. *)
datatype sys = Windows | Posix;
open OS.Path;
fun check s true = () | check s false = raise Fail ("check " ^ s);
val check' = check "";
val sys = if isRoot "/" then Posix else Windows;
(* Windows uses either / or \ as a separator but the
output routines generally produce \. To simplify the
checks map backslashes into forward slashes in some cases. *)
val mapSep =
case sys of
Posix => (fn c => c)
| Windows => String.map (fn #"\\" => #"/" | c => c);
(* fromString *)
val testFromTo =
[
{
s = "",
p = {isAbs=false, vol="", arcs=[]},
w = {isAbs=false, vol="", arcs=[]}
},
{
s = "/",
p = {isAbs=true, vol="", arcs=[""]},
(* In Windows this means the "root" directory on the current drive. *)
w = {isAbs = false, vol = "", arcs = ["", ""]}
},
{
s = "//",
p = {isAbs=true, vol="", arcs=["", ""]},
w = {isAbs = false, vol = "", arcs = ["", "", ""]}
},
{
s = "a",
p = {isAbs=false, vol="", arcs=["a"]},
w = {isAbs=false, vol="", arcs=["a"]}
},
{
s = "/a",
p = {isAbs=true, vol="", arcs=["a"]},
w = {isAbs=false, vol="", arcs=["", "a"]}
},
{
s = "//a",
p = {isAbs=true, vol="", arcs=["","a"]},
w = {isAbs=false, vol="", arcs=["","", "a"]}
},
{
s = "a/",
p = {isAbs=false, vol="", arcs=["a", ""]},
w = {isAbs=false, vol="", arcs=["a", ""]}
},
{
s = "a//",
p = {isAbs=false, vol="", arcs=["a", "", ""]},
w = {isAbs=false, vol="", arcs=["a", "", ""]}
},
{
s = "a/b",
p = {isAbs=false, vol="", arcs=["a", "b"]},
w = {isAbs=false, vol="", arcs=["a", "b"]}
},
{
s = "c:\\",
p = {isAbs=false, vol="", arcs=["c:\\"]},
w = {isAbs = true, vol = "c:", arcs = [""]}
},
{
s = "c:",
p = {isAbs=false, vol="", arcs=["c:"]},
w = {isAbs=false, vol = "c:", arcs = [""]}
},
{
s = "c:\\abc",
p = {isAbs=false, vol="", arcs=["c:\\abc"]},
w = {isAbs=true, vol = "c:", arcs = ["abc"]}
}
];
fun test { s, p, w } =
let
val res = fromString s
val ts = toString res
in
case sys of
Posix => check s (res = p)
| Windows => check s (res = w);
check s (ts = s orelse mapSep ts = s)
end;
val () = List.app test testFromTo;
(* validVolume *)
val v1 = validVolume{isAbs = true, vol = ""};
case sys of Posix => check' v1 | Windows => check' (not v1);
val v2 = validVolume{isAbs = false, vol = ""};
check' v2;
val v3 = validVolume{isAbs = true, vol = "C:"};
case sys of Posix => check'(not v3) | Windows => check' v3;
val v4 = validVolume{isAbs = false, vol = "C:"};
case sys of Posix => check'(not v4) | Windows => check' v4;
val v5 = validVolume{isAbs = false, vol = "\\\\server\\share" };
case sys of Posix => check'(not v5) | Windows => check' v5;
(* getParent *)
val testGetParent =
[
{ s = "/", p = "/", w = "/" },
{ s = "a", p = ".", w = "." },
{ s = "a/", p = "a/..", w = "a/.." },
{ s = "a///", p = "a///..", w = "a///.." },
{ s = "a/b", p = "a", w = "a" },
{ s = "a/b/", p = "a/b/..", w = "a/b/.." },
{ s = "..", p = "../..", w = "../.." },
{ s = ".", p = "..", w = ".." },
{ s = "C:\\", p = ".", w = "C:\\" },
{ s = "\\\\server\\share\\", p = ".", w = "\\\\server\\share\\" }
];
fun test { s, p, w } =
let
val res = getParent s
in
case sys of
Posix => check s (res = p)
| Windows => check s (res = w orelse mapSep res = mapSep w)
end;
val () = List.app test testGetParent;
(* splitDirFile *)
val testSplitFile =
[
{
s = "",
p = {dir = "", file = ""},
w = {dir = "", file = ""}
},
{
s = ".",
p = {dir = "", file = "."},
w = {dir = "", file = "."}
},
{
s = "b",
p = {dir = "", file = "b"},
w = {dir = "", file = "b"}
},
{
s = "b/",
p = {dir = "b", file = ""},
w = {dir = "b", file = ""}
},
{
s = "a/b",
p = {dir = "a", file = "b"},
w = {dir = "a", file = "b"}
},
{
s = "/a",
p = {dir = "/", file = "a"},
w = {dir = "/", file = "a"}
},
{
s = "c:\\a",
p = {dir = "", file = "c:\\a"},
w = {dir = "c:\\", file = "a"}
}
];
fun test { s, p, w } =
let
val res as { dir, file } = splitDirFile s
in
case sys of
Posix => check s (res = p)
| Windows => check s (res = w orelse mapSep dir = #dir w andalso mapSep file = #file w)
end;
val () = List.app test testSplitFile;
val testAbsolute =
[
{ s = "/a", p = true, w = false },
{ s = "c:/a", p = false, w = true }
];
fun test { s, p, w } =
let
val res = isAbsolute s
in
case sys of
Posix => check s (res = p)
| Windows => check s (res = w)
end;
val () = List.app test testAbsolute;
case sys of
Posix =>
let
val testMkRelative =
[
(* These are all relative paths in Windows. *)
{ s = { path = "a/b", relativeTo = "/c/d" }, p = "a/b"},
{ s = { path = "/", relativeTo = "/a/b/c" }, p = "../../.." },
{ s = { path = "/a/b/", relativeTo = "/a/c" }, p = "../b/" },
{ s = { path = "/a/b", relativeTo = "/a/c" }, p = "../b" },
{ s = { path = "/a/b/", relativeTo = "/a/c/"}, p = "../b/" },
{ s = { path = "/a/b", relativeTo = "/a/c/"}, p = "../b" },
{ s = { path = "/", relativeTo = "/"}, p = "." },
{ s = { path = "/", relativeTo = "/."}, p = "." },
{ s = { path = "/", relativeTo = "/.."}, p = "." },
{ s = { path = "/a/b/../c", relativeTo = "/a/d"}, p = "../b/../c" },
{ s = { path = "/a/b", relativeTo = "/c/d"}, p = "../../a/b" },
{ s = { path = "/c/a/b", relativeTo = "/c/d"}, p = "../a/b" },
{ s = { path = "/c/d/a/b", relativeTo = "/c/d"}, p = "a/b" }
];
fun test { s, p } =
let
val res = mkRelative s
in
check (#path s ^ " " ^ #relativeTo s) (res = p)
end;
in
List.app test testMkRelative
end
| Windows =>
let
val testMkRelative =
[
{ s = { path = "a/b", relativeTo = "c:/c/d" }, w = "a/b" },
{ s = { path = "c:/", relativeTo = "c:/a/b/c" }, w = "../../.." },
{ s = { path = "c:/a/b/", relativeTo = "c:/a/c" }, w = "../b/" },
{ s = { path = "c:/a/b", relativeTo = "c:/a/c" }, w = "../b" },
{ s = { path = "c:/a/b/", relativeTo = "c:/a/c/"}, w = "../b/" },
{ s = { path = "c:/a/b", relativeTo = "c:/a/c/"}, w = "../b" },
{ s = { path = "c:/", relativeTo = "c:/"}, w = "." },
{ s = { path = "c:/", relativeTo = "c:/."}, w = "." },
{ s = { path = "c:/", relativeTo = "c:/.."}, w = "." },
{ s = { path = "c:/a/b/../c", relativeTo = "c:/a/d"}, w = "../b/../c" },
{ s = { path = "c:/a/b", relativeTo = "c:/c/d"}, w = "../../a/b" },
{ s = { path = "c:/c/a/b", relativeTo = "c:/c/d"}, w = "../a/b" },
{ s = { path = "c:/c/d/a/b", relativeTo = "c:/c/d"}, w = "a/b" }
];
fun test { s, w } =
let
val res = mkRelative s
in
check (#path s ^ " " ^ #relativeTo s) (res = w orelse mapSep res = mapSep w)
end;
in
List.app test testMkRelative
end;
case sys of
Windows =>
(
(* Special cases for the relative path \\abc. This is relative to the current volume. *)
check "" (mkAbsolute{path="\\abc", relativeTo="c:\\def\\xyz"} = "c:\\abc");
check "" (concat("c:\\abc\\def", "\\ghi") = "c:\\ghi")
)
| Posix => ();
(* OS.Path.joinDirFile should raise InvalidArc if the file name does not correspond to an arc *)
(OS.Path.joinDirFile {dir="abc/def", file="ghi/jkl"}; raise Fail "incorrect") handle OS.Path.InvalidArc => ();
|
