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+#!/usr/bin/env escript
+%% -*- erlang -*-
+% Licensed under the Apache License, Version 2.0 (the "License"); you may not
+% use this file except in compliance with the License. You may obtain a copy of
+% the License at
+%
+% http://www.apache.org/licenses/LICENSE-2.0
+%
+% Unless required by applicable law or agreed to in writing, software
+% distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+% WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+% License for the specific language governing permissions and limitations under
+% the License.
+
+filename() -> test_util:build_file("test/etap/temp.010").
+
+main(_) ->
+ test_util:init_code_path(),
+ etap:plan(19),
+ case (catch test()) of
+ ok ->
+ etap:end_tests();
+ Other ->
+ etap:diag(io_lib:format("Test died abnormally: ~p", [Other])),
+ etap:bail()
+ end,
+ ok.
+
+test() ->
+ etap:is({error, enoent}, couch_file:open("not a real file"),
+ "Opening a non-existant file should return an enoent error."),
+
+ etap:fun_is(
+ fun({ok, _}) -> true; (_) -> false end,
+ couch_file:open(filename() ++ ".1", [create, invalid_option]),
+ "Invalid flags to open are ignored."
+ ),
+
+ {ok, Fd} = couch_file:open(filename() ++ ".0", [create, overwrite]),
+ etap:ok(is_pid(Fd),
+ "Returned file descriptor is a Pid"),
+
+ etap:is({ok, 0}, couch_file:bytes(Fd),
+ "Newly created files have 0 bytes."),
+
+ etap:is({ok, 0}, couch_file:append_term(Fd, foo),
+ "Appending a term returns the previous end of file position."),
+
+ {ok, Size} = couch_file:bytes(Fd),
+ etap:is_greater(Size, 0,
+ "Writing a term increased the file size."),
+
+ etap:is({ok, Size}, couch_file:append_binary(Fd, <<"fancy!">>),
+ "Appending a binary returns the current file size."),
+
+ etap:is({ok, foo}, couch_file:pread_term(Fd, 0),
+ "Reading the first term returns what we wrote: foo"),
+
+ etap:is({ok, <<"fancy!">>}, couch_file:pread_binary(Fd, Size),
+ "Reading back the binary returns what we wrote: <<\"fancy\">>."),
+
+ etap:is({ok, <<131, 100, 0, 3, 102, 111, 111>>},
+ couch_file:pread_binary(Fd, 0),
+ "Reading a binary at a term position returns the term as binary."
+ ),
+
+ {ok, BinPos} = couch_file:append_binary(Fd, <<131,100,0,3,102,111,111>>),
+ etap:is({ok, foo}, couch_file:pread_term(Fd, BinPos),
+ "Reading a term from a written binary term representation succeeds."),
+
+ BigBin = list_to_binary(lists:duplicate(100000, 0)),
+ {ok, BigBinPos} = couch_file:append_binary(Fd, BigBin),
+ etap:is({ok, BigBin}, couch_file:pread_binary(Fd, BigBinPos),
+ "Reading a large term from a written representation succeeds."),
+
+ ok = couch_file:write_header(Fd, hello),
+ etap:is({ok, hello}, couch_file:read_header(Fd),
+ "Reading a header succeeds."),
+
+ {ok, BigBinPos2} = couch_file:append_binary(Fd, BigBin),
+ etap:is({ok, BigBin}, couch_file:pread_binary(Fd, BigBinPos2),
+ "Reading a large term from a written representation succeeds 2."),
+
+ % append_binary == append_iolist?
+ % Possible bug in pread_iolist or iolist() -> append_binary
+ {ok, IOLPos} = couch_file:append_binary(Fd, ["foo", $m, <<"bam">>]),
+ {ok, IoList} = couch_file:pread_iolist(Fd, IOLPos),
+ etap:is(<<"foombam">>, iolist_to_binary(IoList),
+ "Reading an results in a binary form of the written iolist()"),
+
+ % XXX: How does on test fsync?
+ etap:is(ok, couch_file:sync(Fd),
+ "Syncing does not cause an error."),
+
+ etap:is(ok, couch_file:truncate(Fd, Size),
+ "Truncating a file succeeds."),
+
+ %etap:is(eof, (catch couch_file:pread_binary(Fd, Size)),
+ % "Reading data that was truncated fails.")
+ etap:skip(fun() -> ok end,
+ "No idea how to test reading beyond EOF"),
+
+ etap:is({ok, foo}, couch_file:pread_term(Fd, 0),
+ "Truncating does not affect data located before the truncation mark."),
+
+ etap:is(ok, couch_file:close(Fd),
+ "Files close properly."),
+ ok.