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|
-module(bool).
-compile(no_auto_import).
-include_lib("eunit/include/eunit.hrl").
-export([negate/1, max/2, min/2, to_int/1]).
negate(Bool) ->
case Bool of
true ->
false;
false ->
true
end.
-ifdef(TEST).
negate_test() ->
expect:false(negate(true)),
expect:true(negate(false)).
-endif.
max(A, B) ->
case A of
true ->
true;
false ->
B
end.
-ifdef(TEST).
max_test() ->
expect:equal(max(true, true), true),
expect:equal(max(true, false), true),
expect:equal(max(false, false), false),
expect:equal(max(false, true), true).
-endif.
min(A, B) ->
case A of
false ->
false;
true ->
B
end.
-ifdef(TEST).
min_test() ->
expect:equal(min(true, true), true),
expect:equal(min(true, false), false),
expect:equal(min(false, false), false),
expect:equal(min(false, true), false).
-endif.
to_int(Bool) ->
case Bool of
false ->
0;
true ->
1
end.
-ifdef(TEST).
to_int_test() ->
expect:equal(to_int(true), 1),
expect:equal(to_int(false), 0).
-endif.
|
