Files
mercury/tests/general/test_univ.m
Zoltan Somogyi ecb5e4a9e6 Update the style of many test cases.
tests/declarative_debugger/*.m:
tests/exceptions/*.m:
tests/general/*.m:
tests/grade_subdirs/*.m:
tests/purity/*.m:
tests/submodules/*.m:
tests/typeclasses/*.m:
    Update programming style.

tests/declarative_debugger/*.inp:
    Update line numbers in breakpoint commands.
tests/declarative_debugger/*.exp:
    Update expected line numbers.

tests/exceptions/Mercury.options:
tests/general/Mercury.options:
    Disable some warnings that are irrelevant to the test.
2021-07-25 23:26:17 +10:00

83 lines
1.7 KiB
Mathematica

%---------------------------------------------------------------------------%
% vim: ts=4 sw=4 et ft=mercury
%---------------------------------------------------------------------------%
%
% Some very simple tests of type_to_univ and univ_to_type.
:- module test_univ.
:- interface.
:- import_module io.
:- pred main(io::di, io::uo) is det.
:- implementation.
:- import_module bool.
:- import_module list.
:- import_module univ.
main(!IO) :-
( if test1 then
io.write_string("test 1 ok\n", !IO)
else
io.write_string("test 1 failed\n", !IO)
),
( if test2 then
io.write_string("test 2 failed\n", !IO)
else
io.write_string("test 2 ok\n", !IO)
),
( if test3 then
io.write_string("test 3 failed\n", !IO)
else
io.write_string("test 3 ok\n", !IO)
),
( if test4(Compare) then
( if Compare = no then
io.write_string("test 4 ok\n", !IO)
else
io.write_string("test 4 comparison failed\n", !IO)
)
else
io.write_string("test 4 type_to_univ failed\n", !IO)
).
:- pred test1 is semidet.
test1 :-
X = 1,
type_to_univ(X, UnivX),
Y = 1,
type_to_univ(Y, UnivY),
UnivX = UnivY.
:- pred test2 is semidet.
test2 :-
X = 1,
type_to_univ(X, UnivX),
Y = 2,
type_to_univ(Y, UnivY),
UnivX = UnivY.
:- pred test3 is semidet.
test3 :-
X = 1,
type_to_univ(X, UnivX),
type_to_univ(Y, UnivX),
Y = "string".
:- pred test4(bool::out) is semidet.
test4(Compare) :-
X = 1,
type_to_univ(X, UnivX),
type_to_univ(Y, UnivX),
% The comparison should establish the type of Y as integer (same as X)
( if Y = 2 then
Compare = yes
else
Compare = no
).