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-rwxr-xr-xtest/etap/050-stream.t87
1 files changed, 0 insertions, 87 deletions
diff --git a/test/etap/050-stream.t b/test/etap/050-stream.t
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--- a/test/etap/050-stream.t
+++ /dev/null
@@ -1,87 +0,0 @@
-#!/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.
-
-main(_) ->
- test_util:init_code_path(),
- etap:plan(13),
- case (catch test()) of
- ok ->
- etap:end_tests();
- Other ->
- etap:diag(io_lib:format("Test died abnormally: ~p", [Other])),
- etap:bail(Other)
- end,
- ok.
-
-read_all(Fd, PosList) ->
- Data = couch_stream:foldl(Fd, PosList, fun(Bin, Acc) -> [Bin, Acc] end, []),
- iolist_to_binary(Data).
-
-test() ->
- {ok, Fd} = couch_file:open("test/etap/temp.050", [create,overwrite]),
- {ok, Stream} = couch_stream:open(Fd),
-
- etap:is(ok, couch_stream:write(Stream, <<"food">>),
- "Writing to streams works."),
-
- etap:is(ok, couch_stream:write(Stream, <<"foob">>),
- "Consecutive writing to streams works."),
-
- etap:is(ok, couch_stream:write(Stream, <<>>),
- "Writing an empty binary does nothing."),
-
- {Ptrs, Length, _, _, _} = couch_stream:close(Stream),
- etap:is(Ptrs, [{0, 8}], "Close returns the file pointers."),
- etap:is(Length, 8, "Close also returns the number of bytes written."),
- etap:is(<<"foodfoob">>, read_all(Fd, Ptrs), "Returned pointers are valid."),
-
- % Remeber where we expect the pointer to be.
- {ok, ExpPtr} = couch_file:bytes(Fd),
- {ok, Stream2} = couch_stream:open(Fd),
- OneBits = <<1:(8*10)>>,
- etap:is(ok, couch_stream:write(Stream2, OneBits),
- "Successfully wrote 80 1 bits."),
-
- ZeroBits = <<0:(8*10)>>,
- etap:is(ok, couch_stream:write(Stream2, ZeroBits),
- "Successfully wrote 80 0 bits."),
-
- {Ptrs2, Length2, _, _, _} = couch_stream:close(Stream2),
- etap:is(Ptrs2, [{ExpPtr, 20}], "Closing stream returns the file pointers."),
- etap:is(Length2, 20, "Length written is 160 bytes."),
-
- AllBits = iolist_to_binary([OneBits,ZeroBits]),
- etap:is(AllBits, read_all(Fd, Ptrs2), "Returned pointers are valid."),
-
- % Stream more the 4K chunk size.
- {ok, ExpPtr2} = couch_file:bytes(Fd),
- {ok, Stream3} = couch_stream:open(Fd),
- Acc2 = lists:foldl(fun(_, Acc) ->
- Data = <<"a1b2c">>,
- couch_stream:write(Stream3, Data),
- [Data | Acc]
- end, [], lists:seq(1, 1024)),
- {Ptrs3, Length3, _, _, _} = couch_stream:close(Stream3),
-
- % 4095 because of 5 * 4096 rem 5 (last write before exceeding threshold)
- % + 5 puts us over the threshold
- % + 4 bytes for the term_to_binary adding a length header
- % + 1 byte every 4K for tail append headers
- SecondPtr = ExpPtr2 + 4095 + 5 + 4 + 1,
- etap:is(Ptrs3, [{ExpPtr2, 4100}, {SecondPtr, 1020}], "Pointers every 4K bytes."),
- etap:is(Length3, 5120, "Wrote the expected 5K bytes."),
-
- couch_file:close(Fd),
- ok.