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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.