/
gpb_parse_tests.erl
672 lines (599 loc) · 28.5 KB
/
gpb_parse_tests.erl
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%%% Copyright (C) 2010-2011 Tomas Abrahamsson
%%%
%%% Author: Tomas Abrahamsson <tab@lysator.liu.se>
%%%
%%% This library is free software; you can redistribute it and/or
%%% modify it under the terms of the GNU Lesser General Public
%%% License as published by the Free Software Foundation; either
%%% version 2.1 of the License, or (at your option) any later version.
%%%
%%% This library is distributed in the hope that it will be useful,
%%% but WITHOUT ANY WARRANTY; without even the implied warranty of
%%% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
%%% Lesser General Public License for more details.
%%%
%%% You should have received a copy of the GNU Lesser General Public
%%% License along with this library; if not, write to the Free Software
%%% Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
%%% MA 02110-1301 USA
-module(gpb_parse_tests).
-include_lib("eunit/include/eunit.hrl").
-include("../include/gpb.hrl").
parses_simple_msg_test() ->
{ok, [{{msg,'Msg'}, [#?gpb_field{name=x, type=uint32, fnum=1,
occurrence=optional, opts=[]}]}]} =
parse_lines(
["message Msg {",
" optional uint32 x = 1;",
"}"]).
parses_simple_oneof_test() ->
{ok, [{{msg,'Msg'},
[#gpb_oneof{
name=x,
fields=[#field{name=a1, fnum=1, type=uint32, occurrence=optional},
#field{name=a2, fnum=2, type=string, occurrence=optional}
]}]}]=Defs} =
parse_lines(
["message Msg {",
" oneof x {",
" uint32 a1 = 1;",
" string a2 = 2;",
" };",
"}"]),
%% Verify oneof fields are enumerated to get the same rnum
%% (since they occupy the same record position)
[{{msg,'Msg'}, [#gpb_oneof{
name=x,
rnum=2,
fields=[#field{name=a1, rnum=2},
#field{name=a2, rnum=2}]}]}] =
do_process_sort_defs(Defs).
parses_default_value_test() ->
{ok, [{{msg,'Msg'}, [#?gpb_field{name=x, type=uint32, fnum=1,
occurrence=optional,
opts=[{default,12}]}]}]} =
parse_lines(
["message Msg {",
" optional uint32 x = 1 [default = 12];",
"}"]).
parses_string_concatenation_test() ->
{ok, [{{msg,'Msg'}, [#?gpb_field{name=x, type=string, fnum=1,
occurrence=optional,
opts=[{default,"abc"}]}]}]} =
parse_lines(
["message Msg {",
" optional string x=1 [default='a''b' 'c'];", %% = "abc" hopefully
"}"]).
parses_nested_messages_test() ->
{ok, [{{msg,'Msg'}, [{{msg,'Msg2'},[#?gpb_field{name=x}]},
#?gpb_field{name=y}]}]} =
parse_lines(
["message Msg {",
" message Msg2 { optional uint32 x=1; }",
" repeated string y=1;",
"}"]).
parses_relative_nested_messages_test() ->
{ok, Elems} = parse_lines(["message m1 {",
"",
" required m2 f2 = 1;",
"",
" message m2 {",
" message m3 {",
%% The 'm5' refers to m1.m2.m5 (not m1.m5),
%% and it is ok but not not necessary
%% to write it with full path like this:
%% required m1.m2.m5 f5 = 5;
" required m5 f5 = 5;",
" required m1.m2.m5 f6 = 6;",
" }",
" message m5 {",
" required string fy = 1;",
" }",
" }",
"",
" message m5 {",
" required uint32 fx = 1;",
" }",
"}"]),
[{{msg,m1}, [#?gpb_field{name=f2, type={msg,'m1.m2'}}]},
{{msg,'m1.m2'}, []},
{{msg,'m1.m2.m3'}, [#?gpb_field{name=f5, type={msg,'m1.m2.m5'}},
#?gpb_field{name=f6, type={msg,'m1.m2.m5'}}]},
{{msg,'m1.m2.m5'}, [#?gpb_field{name=fy}]},
{{msg,'m1.m5'}, [#?gpb_field{name=fx}]}] =
do_process_sort_defs(Elems).
parses_relative_nested_messages_with_oneof_test() ->
{ok, Elems} = parse_lines(["message t1 {",
" message t2 {",
" required uint32 bb = 18;",
" }",
"}",
"message m1 {",
" message m2 {",
" required uint32 aa = 17;",
" }",
" oneof x {",
" .t1.t2 xa1 = 2;",
" m2 xa2 = 3;",
" }",
"}"]),
[{{msg,m1}, [#gpb_oneof{
name=x,
fields=[#?gpb_field{name=xa1, type={msg,'t1.t2'}},
#?gpb_field{name=xa2, type={msg,'m1.m2'}}]}]},
{{msg,'m1.m2'}, [#?gpb_field{}]},
{{msg,'t1'}, []},
{{msg,'t1.t2'}, [#?gpb_field{}]}] =
do_process_sort_defs(Elems).
parses_circular_messages_test() ->
{ok, Elems} = parse_lines(["message m1 {",
" optional m1 f = 1;",
"}"]),
[{{msg,m1}, [#?gpb_field{name=f, type={msg,m1}}]}] =
do_process_sort_defs(Elems).
parses_enum_def_test() ->
{ok, [{{enum,e1}, [{ee1,1},{ee2,2}]}]} =
parse_lines(
["enum e1 {",
" ee1 = 1;",
" ee2 = 2;",
"}"]).
parses_nested_enum_def_test() ->
{ok, [{{msg,'Msg'}, [{{enum,e1}, [{ee1,1},{ee2,2}]},
#?gpb_field{name=ef}]}]} =
parse_lines(
["message Msg {"
" enum e1 {",
" ee1 = 1;",
" ee2 = 2;",
" }",
" required e1 ef = 1;",
"}"
]).
parses_dotted_references_test() ->
{ok, [{{msg,'Msg3'}, [#?gpb_field{name=y,
type={ref,['Msg','.','Msg2']}}]}]} =
parse_lines(
["message Msg3 {",
" repeated Msg.Msg2 y=1;",
"}"]).
parses_package_test() ->
{ok, [{package,[p1,'.',p2]}, {{enum,e1}, _}]} =
parse_lines(["package p1.p2;",
"enum e1 { a = 1; }"]).
parses_import_test() ->
{ok, [{package,[p1,'.',p2]}, {import, "a/b/c.proto"}]} =
parse_lines(["package p1.p2;",
"import \"a/b/c.proto\";"]).
parses_enum_option_test() ->
{ok, Elems} = parse_lines(["enum e1 {",
" option allow_alias = true;",
" ee1 = 1;",
" ee2 = 1;",
"}"]),
[{{enum,e1}, [{option, allow_alias, true}, {ee1,1},{ee2,1}]}] =
do_process_sort_defs(Elems).
generates_correct_absolute_names_test() ->
{ok, Elems} = parse_lines(["message m1 {"
" message m2 { required uint32 x = 1; }",
" enum e1 { a = 17; }",
" required m2 y = 1;",
" required .m1.m2 z = 2;",
" required e1 w = 3;",
"}",
"message m3 {",
" required m1.m2 b = 1;",
"}"]),
[{{enum,'m1.e1'}, [_]},
{{msg,m1}, [#?gpb_field{name=y, type={msg,'m1.m2'}},
#?gpb_field{name=z, type={msg,'m1.m2'}},
#?gpb_field{name=w, type={enum,'m1.e1'}}]},
{{msg,'m1.m2'}, [#?gpb_field{name=x}]},
{{msg,m3}, [#?gpb_field{name=b, type={msg,'m1.m2'}}]}] =
do_process_sort_defs(Elems).
generates_correct_absolute_names_2_test() ->
{ok, Elems} = parse_lines(["message m2 {",
" message m4 { required uint32 x = 1; }",
"}",
"message m1 {",
" message m2 {",
" message m3 { required uint32 y = 1; }",
" }",
" required m1.m2 f1 = 1;", %% -> .m1.m2
" required m2.m3 f2 = 2;", %% -> .m1.m2.m3
" required m2.m4 f3 = 3;", %% -> .m2.m4
"}"]),
[{{msg,m1}, [#?gpb_field{name=f1,type={msg,'m1.m2'}},
#?gpb_field{name=f2,type={msg,'m1.m2.m3'}},
#?gpb_field{name=f3,type={msg,'m2.m4'}}]},
{{msg,'m1.m2'}, []},
{{msg,'m1.m2.m3'}, [#?gpb_field{name=y}]},
{{msg,m2}, []},
{{msg,'m2.m4'}, [#?gpb_field{name=x}]}] =
do_process_sort_defs(Elems).
resolve_refs_test() ->
{ok, Elems} = parse_lines(["package p1;"
"import \"a/b/c.proto\";",
"message m1 {"
" message m2 { required uint32 x = 1; }",
" enum e1 { a = 17; }",
" required m2 y = 1;",
" required e1 z = 2;",
" required uint32 w = 3;",
"}",
"message m3 {",
" required m1.m2 b = 1;",
"}"]),
[{import, _},
{package, p1},
{{enum,'m1.e1'}, _},
{{msg,m1}, [#?gpb_field{name=y, type={msg,'m1.m2'}},
#?gpb_field{name=z, type={enum,'m1.e1'}},
#?gpb_field{name=w}]},
{{msg,'m1.m2'}, [#?gpb_field{name=x}]},
{{msg,m3}, [#?gpb_field{name=b, type={msg,'m1.m2'}}]}] =
do_process_sort_defs(Elems).
resolve_refs_with_packages_test() ->
{ok, Elems} = parse_lines(["package p1;"
"import \"a/b/c.proto\";",
"message m1 {"
" message m2 { required uint32 x = 1; }",
" enum e1 { a = 17; }",
" required m2 y = 1;",
" required e1 z = 2;",
" required uint32 w = 3;",
"}",
"message m3 {",
" required m1.m2 b = 1;",
"}"]),
[{import, _},
{package, p1},
{{enum,'p1.m1.e1'}, _},
{{msg,'p1.m1'}, [#?gpb_field{name=y, type={msg,'p1.m1.m2'}},
#?gpb_field{name=z, type={enum,'p1.m1.e1'}},
#?gpb_field{name=w}]},
{{msg,'p1.m1.m2'}, [#?gpb_field{name=x}]},
{{msg,'p1.m3'}, [#?gpb_field{name=b, type={msg,'p1.m1.m2'}}]}] =
do_process_sort_defs(Elems, [use_packages]).
package_can_appear_anywhere_toplevelwise_test() ->
%% The google protoc seems accepts one package specifiers anywhere
%% at the top-level. It must not be at the beginning,
%% yet it applies to all (non-imported) definitions in the proto file.
{ok, Elems1} = parse_lines(["package p1;"
"message m1 { required uint32 x = 1; }",
"message m2 { required uint32 y = 2; }"]),
{ok, Elems2} = parse_lines(["message m1 { required uint32 x = 1; }",
"package p1;"
"message m2 { required uint32 y = 2; }"]),
{ok, Elems3} = parse_lines(["message m1 { required uint32 x = 1; }",
"message m2 { required uint32 y = 2; }",
"package p1;"]),
[{package, p1},
{{msg,'p1.m1'}, [#?gpb_field{}]},
{{msg,'p1.m2'}, [#?gpb_field{}]}] = Defs =
do_process_sort_defs(Elems1, [use_packages]),
?assertEqual(Defs, do_process_sort_defs(Elems2, [use_packages])),
?assertEqual(Defs, do_process_sort_defs(Elems3, [use_packages])).
enumerates_msg_fields_test() ->
{ok, Elems} = parse_lines(["message m1 {"
" message m2 { required uint32 x = 1; }",
" enum e1 { a = 17; }",
" required m2 y = 11;",
" required e1 z = 12;",
"}"]),
[{{enum,'m1.e1'}, _},
{{msg,m1}, [#?gpb_field{name=y, fnum=11, rnum=2},
#?gpb_field{name=z, fnum=12, rnum=3}]},
{{msg,'m1.m2'}, [#?gpb_field{name=x, fnum=1, rnum=2}]}] =
do_process_sort_defs(Elems).
field_opt_normalization_test() ->
{ok,Defs} = parse_lines(["message m1 {"
" required uint32 f1=1 [packed=true,default=1];",
" required uint32 f2=2 [packed=false];",
" required uint32 f3=3 [packed,default=2];",
" required uint32 f4=4 [deprecated=true];",
" required uint32 f5=5 [deprecated=false];",
" required uint32 f6=5 [deprecated];",
" required bool f7=7 [packed,default=true];",
"}"]),
[{{msg,m1}, [#?gpb_field{name=f1, opts=[packed, {default,1}]},
#?gpb_field{name=f2, opts=[]},
#?gpb_field{name=f3, opts=[packed, {default,2}]},
#?gpb_field{name=f4, opts=[deprecated]},
#?gpb_field{name=f5, opts=[]},
#?gpb_field{name=f6, opts=[deprecated]},
#?gpb_field{name=f7, opts=[packed, {default,true}]}]}] =
do_process_sort_defs(Defs).
parses_empty_msg_field_options_test() ->
{ok,Defs} = parse_lines(["message m1 { required uint32 f1=1 []; }"]),
[{{msg,m1}, [#?gpb_field{name=f1, opts=[]}]}] = do_process_sort_defs(Defs).
parses_and_ignores_enum_field_options_test() ->
{ok,_Defs} = parse_lines(["enum e1 { a=1 [x=y]; }"]).
parses_and_ignores_empty_enum_field_options_test() ->
{ok,_Defs} = parse_lines(["enum e1 { a=1 []; }"]).
parses_msg_extensions_test() ->
{ok,Defs} = parse_lines(["message m1 {",
" required uint32 f1=1;",
" extensions 100 to 199, 300, 400 to max, 250;",
" extensions 251, 252;",
" message m2 {",
" required uint32 f2=2;",
" extensions 233;",
" }",
"}"]),
[{{extensions,m1},[{100,199},{250,250},{300,300},{400,max}]},
{{extensions,m1},[{251,251},{252,252}]},
{{extensions,'m1.m2'},[{233,233}]},
{{msg,m1}, [#?gpb_field{name=f1}]},
{{msg,'m1.m2'}, [#?gpb_field{name=f2}]}] =
do_process_sort_defs(Defs).
parses_extending_msgs_test() ->
{ok,Defs} = parse_lines(["message m1 {",
" required uint32 f1=1 [default=17];",
" extensions 200 to 299;",
"}",
"extend m1 {",
" optional uint32 f2=2;",
"}"]),
[{{extensions,m1},[{200,299}]},
{{msg,m1}, [#?gpb_field{name=f1, fnum=1, rnum=2, opts=[{default,17}],
occurrence=required},
#?gpb_field{name=f2, fnum=2, rnum=3, opts=[],
occurrence=optional}]}] =
do_process_sort_defs(Defs).
parses_service_test() ->
{ok,Defs} = parse_lines(["message m1 {required uint32 f1=1;}",
"message m2 {required uint32 f2=1;}",
"service s1 {",
" rpc req(m1) returns (m2);",
"}"]),
[{{msg,m1}, _},
{{msg,m2}, _},
{{service,s1},[#?gpb_rpc{name=req, input=m1, output=m2}]}] =
do_process_sort_defs(Defs).
parses_multiple_services_test() ->
{ok,Defs} = parse_lines(["message m1 {required uint32 f1=1;}",
"message m2 {required uint32 f2=1;}",
"service s1 {",
" rpc req(m1) returns (m2);",
"}",
"service s2 {",
" rpc req2(m2) returns (m1);",
"}"]),
[{{msg,m1}, _},
{{msg,m2}, _},
{{service,s1},[#?gpb_rpc{name=req, input=m1, output=m2}]},
{{service,s2},[#?gpb_rpc{name=req2, input=m2, output=m1}]}] =
do_process_sort_defs(Defs).
parses_service_ignores_empty_method_option_braces_test() ->
{ok,Defs} = parse_lines(["message m1 {required uint32 f1=1;}",
"message m2 {required uint32 f2=1;}",
"service s1 {",
" rpc req(m1) returns (m2) {};",
"}"]),
[{{msg,m1}, _},
{{msg,m2}, _},
{{service,s1},[#?gpb_rpc{name=req, input=m1, output=m2}]}] =
do_process_sort_defs(Defs).
parses_empty_toplevel_statement_test() ->
{ok,Defs} = parse_lines(["; message m1 { required uint32 f1=1; }; ; "]),
[{{msg,m1}, _}] = do_process_sort_defs(Defs).
parses_empty_message_statement_test() ->
{ok,Defs} = parse_lines(["message m1 { ; ; required uint32 f1=1;;; }"]),
[{{msg,m1}, [#?gpb_field{name=f1}]}] = do_process_sort_defs(Defs).
parses_empty_enum_statement_test() ->
{ok,Defs} = parse_lines(["enum e1 { ; ; ee1=1;;; }"]),
[{{enum,e1}, [{ee1,1}]}] = do_process_sort_defs(Defs).
parses_empty_service_statement_test() ->
{ok,Defs} = parse_lines(["message m1 { required uint32 f1=1; }",
"service s1 { ; ; rpc r1(m1) returns (m1);;; }"]),
[{{msg,m1}, _},
{{service,s1},[#?gpb_rpc{name=r1, input=m1, output=m1}]}] =
do_process_sort_defs(Defs).
parses_empty_service_statement_method_options_test() ->
{ok,Defs} = parse_lines(["message m1 { required uint32 f1=1; }",
"service s1 { rpc r1(m1) returns (m1){;;;}; }"]),
[{{msg,m1}, _},
{{service,s1},[#?gpb_rpc{name=r1, input=m1, output=m1}]}] =
do_process_sort_defs(Defs).
fetches_imports_test() ->
{ok, Elems} = parse_lines(["package p1;"
"import \"a/b/c.proto\";",
"import 'd/e/f.proto';",
"message m1 { required uint32 x = 1; }",
"enum e1 { a = 17; }"]),
["a/b/c.proto", "d/e/f.proto"] = gpb_parse:fetch_imports(Elems).
can_prefix_record_names_test() ->
{ok, Defs} = parse_lines(["enum e1 {a=1; b=2;}",
"message m1 {required e1 f1=1;}",
"message m2 {required m1 f2=1;}",
"service s1 {",
" rpc req(m1) returns (m2) {};",
"}",
"extend m1 { optional uint32 fm2=2; }"]),
[{{enum,e1}, [{a,1},{b,2}]}, %% not prefixed
{{msg,p_m1}, [#?gpb_field{name=f1, type={enum,e1}}, #?gpb_field{name=fm2}]},
{{msg,p_m2}, [#?gpb_field{type={msg,p_m1}}]}, %% type is a msg: to be prefixed
{{service,s1}, %% not prefixed
[#?gpb_rpc{name=req,
input=p_m1, %% both argument ...
output=p_m2} %% ... and result msgs to be prefixed
]}] = do_process_sort_defs(Defs, [{msg_name_prefix, "p_"}]).
can_suffix_record_names_test() ->
{ok, Defs} = parse_lines(["enum e1 {a=1; b=2;}",
"message m1 {required e1 f1=1;}",
"message m2 {required m1 f2=1;}",
"service s1 {",
" rpc req(m1) returns (m2) {};",
"}",
"extend m1 { optional uint32 fm2=2; }"]),
[{{enum,e1}, [{a,1},{b,2}]}, %% not prefixed
{{msg,m1_s}, [#?gpb_field{name=f1, type={enum,e1}}, #?gpb_field{name=fm2}]},
{{msg,m2_s}, [#?gpb_field{type={msg,m1_s}}]}, %% type is a msg: to be prefixed
{{service,s1}, %% not prefixed
[#?gpb_rpc{name=req,
input=m1_s, %% both argument ...
output=m2_s} %% .. and result msgs to be prefixed
]}] = do_process_sort_defs(Defs, [{msg_name_suffix, "_s"}]).
verify_ingores_import_statements_test() ->
ok = do_parse_verify_defs(["import \"Y.proto\";",
"message m2 { required uint32 x = 1; }"]).
verify_succeeds_for_defined_ref_in_message_test() ->
ok = do_parse_verify_defs(["message m1 { required m2 x = 1; }",
"message m2 { required uint32 x = 1; }"]).
verify_catches_missing_ref_in_message_test() ->
{error, [{ref_to_undefined_msg_or_enum, _}]} = Error =
do_parse_verify_defs(["message m1 { required m2 f1 = 1; }"]),
Msg = verify_flat_string(gpb_parse:format_post_process_error(Error)),
verify_strings_present(Msg, ["m1", "f1", "m2"]).
verify_succeeds_for_good_enum_default_value_test() ->
ok = do_parse_verify_defs(
["enum e { e1 = 1; e2 = 2; }"
"message m1 { required e f1 = 1 [default=e2]; }"]).
verify_catches_undefined_enum_value_in_default_test() ->
{error, [_]} = Error = do_parse_verify_defs(
["enum e { e1 = 1; e2 = 2; }"
"message m1 { required e f1 = 1 [default=e3];}"]),
Msg = verify_flat_string(gpb_parse:format_post_process_error(Error)),
verify_strings_present(Msg, ["m1", "f1", "e3"]).
verify_succeeds_for_valid_integer_in_default_test() ->
ok = do_parse_verify_defs(
["message m1 { required uint32 f1 = 1 [default=343]; }"]).
verify_catches_invalid_integer_in_default_test() ->
{error, [_]} = Error =
do_parse_verify_defs(
["message m1 { required uint32 f1 = 1 [default=-1]; }"]),
Msg = verify_flat_string(gpb_parse:format_post_process_error(Error)),
verify_strings_present(Msg, ["m1", "f1", "-1"]).
verify_catches_invalid_integer_in_default_2_test() ->
{error, [_]} = Error =
do_parse_verify_defs(
["message m1 { required uint32 f1 = 1 [default=e3]; }"]),
Msg = verify_flat_string(gpb_parse:format_post_process_error(Error)),
verify_strings_present(Msg, ["m1", "f1", "e3"]).
verify_catches_invalid_integer_in_default_3_test() ->
{error, [_]} = Error =
do_parse_verify_defs(
["message m1 { required uint32 f1 = 1 [default=\"abc\"]; }"]),
Msg = verify_flat_string(gpb_parse:format_post_process_error(Error)),
verify_strings_present(Msg, ["m1", "f1"]).
verify_succeeds_for_valid_string_in_default_test() ->
ok = do_parse_verify_defs(
["message m1 { required string f1 = 1 [default=\"abc\"]; }"]),
ok = do_parse_verify_defs(
["message m1 { required string f1 = 1 [default='abc']; }"]).
verify_catches_invalid_string_in_default_test() ->
{error, [_]} = Error =
do_parse_verify_defs(
["message m1 { required string f1 = 1 [default=344]; }"]),
Msg = verify_flat_string(gpb_parse:format_post_process_error(Error)),
verify_strings_present(Msg, ["m1", "f1", "344"]).
verify_succeeds_for_valid_float_in_default_test() ->
ok = do_parse_verify_defs(
["message m1 { required float f1 = 1 [default=1.1]; }"]).
verify_succeeds_for_valid_int_as_double_in_default_test() ->
ok = do_parse_verify_defs(
["message m1 { required double f1 = 1 [default=1]; }"]).
verify_catches_invalid_float_in_default_test() ->
{error, [_]} = Error =
do_parse_verify_defs(
["message m1 { required float f1 = 1 [default=\"abc\"]; }"]),
Msg = verify_flat_string(gpb_parse:format_post_process_error(Error)),
verify_strings_present(Msg, ["m1", "f1", "abc"]).
verify_succeeds_for_bool_in_default_test() ->
ok = do_parse_verify_defs(
["message m1 { required bool f1 = 1 [default=true]; }"]),
ok = do_parse_verify_defs(
["message m1 { required bool f1 = 1 [default=false]; }"]).
verify_catches_invalid_bool_in_default_1_test() ->
{error, [_]} = Error =
do_parse_verify_defs(
["message m1 { required bool f1 = 1 [default=\"abc\"]; }"]),
Msg = verify_flat_string(gpb_parse:format_post_process_error(Error)),
verify_strings_present(Msg, ["m1", "f1", "abc"]).
verify_catches_invalid_bool_in_default_2_test() ->
{error, [_]} = Error =
do_parse_verify_defs(
["message m1 { required bool f1 = 1 [default=TRUE]; }"]),
Msg = verify_flat_string(gpb_parse:format_post_process_error(Error)),
verify_strings_present(Msg, ["m1", "f1", "TRUE"]).
verify_catches_invalid_bool_in_default_3_test() ->
{error, [_]} = Error =
do_parse_verify_defs(
["message m1 { required bool f1 = 1 [default=1]; }"]),
Msg = verify_flat_string(gpb_parse:format_post_process_error(Error)),
verify_strings_present(Msg, ["m1", "f1"]).
verify_catches_invalid_rpc_return_type_test() ->
{error, [_]} = Error =
do_parse_verify_defs(
["enum e1 { a=1; }",
"message m1 { required uint32 x = 1; }",
"service s1 { rpc req(m1) returns (e1); }"]),
Msg = verify_flat_string(gpb_parse:format_post_process_error(Error)),
verify_strings_present(Msg, ["s1", "req", "e1", "return"]).
verify_catches_invalid_rpc_return_ref_test() ->
{error, [_]} = Error =
do_parse_verify_defs(
["message m1 { required uint32 x = 1; }",
"service s1 { rpc req(m1) returns (m2); }"]),
Msg = verify_flat_string(gpb_parse:format_post_process_error(Error)),
verify_strings_present(Msg, ["s1", "req", "m2", "return"]).
verify_catches_invalid_rpc_arg_type_test() ->
{error, [_]} = Error =
do_parse_verify_defs(
["enum e1 { a=1; }",
"message m1 { required uint32 x = 1; }",
"service s1 { rpc req(e1) returns (m1); }"]),
Msg = verify_flat_string(gpb_parse:format_post_process_error(Error)),
verify_strings_present(Msg, ["s1", "req", "e1", "arg"]).
verify_catches_invalid_rpc_arg_ref_test() ->
{error, [_]} = Error =
do_parse_verify_defs(
["message m1 { required uint32 x = 1; }",
"service s1 { rpc req(m2) returns (m1); }"]),
Msg = verify_flat_string(gpb_parse:format_post_process_error(Error)),
verify_strings_present(Msg, ["s1", "req", "m2", "arg"]).
do_parse_verify_defs(Lines) ->
{ok, Elems} = parse_lines(Lines),
case post_process(Elems, []) of
{ok, _} ->
ok;
{error, Reasons} ->
{error, Reasons}
end.
verify_flat_string(S) when is_list(S) ->
case lists:all(fun is_integer/1, S) of
true -> S;
false -> erlang:error(badstring, [S])
end.
verify_strings_present(Str, StringsToTestFor) ->
case [ToTest || ToTest <- StringsToTestFor, not is_present(Str, ToTest)] of
[] -> ok;
Missing -> erlang:error(missing_substring, [Missing, Str])
end.
is_present(Str, ToTest) -> string:str(Str, ToTest) > 0.
%% test helpers
parse_lines(Lines) ->
S = binary_to_list(iolist_to_binary([[L,"\n"] || L <- Lines])),
case gpb_scan:string(S) of
{ok, Tokens, _} ->
case gpb_parse:parse(Tokens++[{'$end',length(Lines)+1}]) of
{ok, Result} ->
{ok, Result};
{error, {LNum,_Module,EMsg}=Reason} ->
io:format("Parse error on line ~w:~n ~p~n",
[LNum, {Tokens,EMsg}]),
erlang:error({parse_error,Lines,Reason})
end;
{error,Reason} ->
io:format("Scan error:~n ~p~n", [Reason]),
erlang:error({scan_error,Lines,Reason})
end.
do_process_sort_defs(Defs) ->
do_process_sort_defs(Defs, []).
do_process_sort_defs(Defs, Opts) ->
{ok, Defs2} = post_process(Defs, Opts),
lists:sort(Defs2).
post_process(Elems, Opts) ->
{ok, Elems2} = gpb_parse:post_process_one_file(Elems, Opts),
gpb_parse:post_process_all_files(Elems2, Opts).