155 lines
4.1 KiB
Erlang
155 lines
4.1 KiB
Erlang
%%
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%% Test suite for esqlite.
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%%
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-module(esqlite_test).
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-include_lib("eunit/include/eunit.hrl").
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open_single_database_test() ->
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{ok, _C1} = esqlite:open("test.db"),
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ok.
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open_multiple_same_databases_test() ->
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{ok, _C1} = esqlite:open("test.db"),
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{ok, _C2} = esqlite:open("test.db"),
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ok.
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open_multiple_different_databases_test() ->
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{ok, _C1} = esqlite:open("test1.db"),
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{ok, _C2} = esqlite:open("test2.db"),
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ok.
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simple_query_test() ->
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{ok, Db} = esqlite:open(":memory:"),
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ok = esqlite:exec(Db, "begin;"),
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ok = esqlite:exec(Db, "create table test_table(one varchar(10), two int);"),
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ok = esqlite:exec(Db, ["insert into test_table values(", "\"hello1\"", ",", "10" ");"]),
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ok = esqlite:exec(Db, ["insert into test_table values(", "\"hello2\"", ",", "11" ");"]),
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ok = esqlite:exec(Db, ["insert into test_table values(", "\"hello3\"", ",", "12" ");"]),
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ok = esqlite:exec(Db, ["insert into test_table values(", "\"hello4\"", ",", "13" ");"]),
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ok = esqlite:exec(Db, "commit;"),
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ok = esqlite:exec(Db, "select * from test_table;"),
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ok.
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prepare_test() ->
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{ok, Db} = esqlite:open(":memory:"),
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esqlite:exec(Db, "begin;"),
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esqlite:exec(Db, "create table test_table(one varchar(10), two int);"),
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{ok, Statement} = esqlite:prepare(Db, "insert into test_table values(\"one\", 2)"),
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'$done' = esqlite:step(Statement),
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ok = esqlite:exec(Db, ["insert into test_table values(", "\"hello4\"", ",", "13" ");"]),
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{ok, St2} = esqlite:prepare(Db, "select * from test_table order by two"),
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[{"one", 2}, {"hello4", 13}] = exec(St2),
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esqlite:exec(Db, "commit;"),
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esqlite:close(Db),
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ok.
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bind_test() ->
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{ok, Db} = esqlite:open(":memory:"),
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ok = esqlite:exec(Db, "begin;"),
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ok = esqlite:exec(Db, "create table test_table(one varchar(10), two int);"),
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ok = esqlite:exec(Db, ["insert into test_table values(", "\"hello1\"", ",", "10" ");"]),
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ok = esqlite:exec(Db, ["insert into test_table values(", "\"hello2\"", ",", "11" ");"]),
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ok = esqlite:exec(Db, ["insert into test_table values(", "\"hello3\"", ",", "12" ");"]),
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ok = esqlite:exec(Db, ["insert into test_table values(", "\"hello4\"", ",", "13" ");"]),
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ok = esqlite:exec(Db, "commit;"),
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%% Create a prepared statement
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{ok, Statement} = esqlite:prepare(Db, "insert into test_table values(?1, ?2)"),
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esqlite:bind(Statement, [one, 2]),
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esqlite:step(Statement),
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esqlite:bind(Statement, [three, 4]),
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esqlite:step(Statement),
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[{"one", 2}] = q(Db, "select * from test_table where two = 2"),
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[{"three", 4}] = q(Db, "select * from test_table where two = 4"),
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ok.
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%% Handy functions...
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%%
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q(Db, Sql) when is_list(Sql) ->
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{ok, Statement} = esqlite:prepare(Db, Sql),
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exec(Statement).
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q(Db, Sql, Args) when is_list(Sql) ->
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{ok, Statement} = esqlite:prepare(Db, Sql),
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esqlite:bind(Statement, Args),
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exec(Statement).
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exec(Statement) ->
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exec(Statement, [], 0).
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exec(_Statement, _Acc, Tries) when Tries > 5 ->
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throw(too_many_tries);
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exec(Statement, Acc, Tries) ->
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case esqlite:step(Statement) of
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'$done' ->
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lists:reverse(Acc);
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'$busy' ->
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timer:sleep(100),
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exec(Statement, Acc, Tries + 1);
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V when is_tuple(V) ->
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exec(Statement, [V | Acc], 0)
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end.
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%% esqlite:bind(Statement, ":one", "hello"),
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%% esqlite:bind(Statement, ":two", 11),
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%% %% of
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%% esqlite:bind(Statement, ["hello", 11]),
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%% {ok, []} = esqlite:execute(Statement),
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%% esqlite:exec(Db, "commit;"),
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%%
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% api...
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%% q(Sql, Connection) ->
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%% ok.
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%% q(Sql, Args, Connection) ->
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%% ok.
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%%
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%% options --
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%% [{sync, bool()}
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%% -- asynchronous or synchronous. Default true
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%% {receiver, (pid()|function/1|{M, F, A}},
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%% -- for asynchronous requests, to send the result to.
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%% {stream, pid()},
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%% -- instead of receiving all rows at once, send them one by one.
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%% {..},
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%% ]
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%%
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%% return
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%% {ok, Result} -- result kan dan headers, rows of request-id (voor async)
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%% {error, ...
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%% q(Sql, Args, Options, Connection) ->
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%% ok.
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