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-rw-r--r--lib/stdlib/include/assert.hrl176
1 files changed, 175 insertions, 1 deletions
diff --git a/lib/stdlib/include/assert.hrl b/lib/stdlib/include/assert.hrl
index 9e5d4eb598..5a752550ee 100644
--- a/lib/stdlib/include/assert.hrl
+++ b/lib/stdlib/include/assert.hrl
@@ -56,7 +56,8 @@
%% It is not possible to nest assert macros.
-ifdef(NOASSERT).
--define(assert(BoolExpr),ok).
+-define(assert(BoolExpr), ok).
+-define(assert(BoolExpr, Comment), ok).
-else.
%% The assert macro is written the way it is so as not to cause warnings
%% for clauses that cannot match, even if the expression is a constant or
@@ -79,11 +80,31 @@
end
end)())
end).
+-define(assert(BoolExpr, Comment),
+ begin
+ ((fun () ->
+ __T = is_process_alive(self()), % cheap source of truth
+ case (BoolExpr) of
+ __T -> ok;
+ __V -> erlang:error({assert,
+ [{module, ?MODULE},
+ {line, ?LINE},
+ {comment, (Comment)},
+ {expression, (??BoolExpr)},
+ {expected, true},
+ case not __T of
+ __V -> {value, false};
+ _ -> {not_boolean, __V}
+ end]})
+ end
+ end)())
+ end).
-endif.
%% This is the inverse case of assert, for convenience.
-ifdef(NOASSERT).
-define(assertNot(BoolExpr),ok).
+-define(assertNot(BoolExpr, Comment), ok).
-else.
-define(assertNot(BoolExpr),
begin
@@ -103,12 +124,32 @@
end
end)())
end).
+-define(assertNot(BoolExpr, Comment),
+ begin
+ ((fun () ->
+ __F = not is_process_alive(self()),
+ case (BoolExpr) of
+ __F -> ok;
+ __V -> erlang:error({assert,
+ [{module, ?MODULE},
+ {line, ?LINE},
+ {comment, (Comment)},
+ {expression, (??BoolExpr)},
+ {expected, false},
+ case not __F of
+ __V -> {value, true};
+ _ -> {not_boolean, __V}
+ end]})
+ end
+ end)())
+ end).
-endif.
%% This is mostly a convenience which gives more detailed reports.
%% Note: Guard is a guarded pattern, and can not be used for value.
-ifdef(NOASSERT).
-define(assertMatch(Guard, Expr), ok).
+-define(assertMatch(Guard, Expr, Comment), ok).
-else.
-define(assertMatch(Guard, Expr),
begin
@@ -124,11 +165,27 @@
end
end)())
end).
+-define(assertMatch(Guard, Expr, Comment),
+ begin
+ ((fun () ->
+ case (Expr) of
+ Guard -> ok;
+ __V -> erlang:error({assertMatch,
+ [{module, ?MODULE},
+ {line, ?LINE},
+ {comment, (Comment)},
+ {expression, (??Expr)},
+ {pattern, (??Guard)},
+ {value, __V}]})
+ end
+ end)())
+ end).
-endif.
%% This is the inverse case of assertMatch, for convenience.
-ifdef(NOASSERT).
-define(assertNotMatch(Guard, Expr), ok).
+-define(assertNotMatch(Guard, Expr, Comment), ok).
-else.
-define(assertNotMatch(Guard, Expr),
begin
@@ -145,12 +202,29 @@
end
end)())
end).
+-define(assertNotMatch(Guard, Expr, Comment),
+ begin
+ ((fun () ->
+ __V = (Expr),
+ case __V of
+ Guard -> erlang:error({assertNotMatch,
+ [{module, ?MODULE},
+ {line, ?LINE},
+ {comment, (Comment)},
+ {expression, (??Expr)},
+ {pattern, (??Guard)},
+ {value, __V}]});
+ _ -> ok
+ end
+ end)())
+ end).
-endif.
%% This is a convenience macro which gives more detailed reports when
%% the expected LHS value is not a pattern, but a computed value
-ifdef(NOASSERT).
-define(assertEqual(Expect, Expr), ok).
+-define(assertEqual(Expect, Expr, Comment), ok).
-else.
-define(assertEqual(Expect, Expr),
begin
@@ -167,11 +241,28 @@
end
end)())
end).
+-define(assertEqual(Expect, Expr, Comment),
+ begin
+ ((fun () ->
+ __X = (Expect),
+ case (Expr) of
+ __X -> ok;
+ __V -> erlang:error({assertEqual,
+ [{module, ?MODULE},
+ {line, ?LINE},
+ {comment, (Comment)},
+ {expression, (??Expr)},
+ {expected, __X},
+ {value, __V}]})
+ end
+ end)())
+ end).
-endif.
%% This is the inverse case of assertEqual, for convenience.
-ifdef(NOASSERT).
-define(assertNotEqual(Unexpected, Expr), ok).
+-define(assertNotEqual(Unexpected, Expr, Comment), ok).
-else.
-define(assertNotEqual(Unexpected, Expr),
begin
@@ -187,12 +278,28 @@
end
end)())
end).
+-define(assertNotEqual(Unexpected, Expr, Comment),
+ begin
+ ((fun () ->
+ __X = (Unexpected),
+ case (Expr) of
+ __X -> erlang:error({assertNotEqual,
+ [{module, ?MODULE},
+ {line, ?LINE},
+ {comment, (Comment)},
+ {expression, (??Expr)},
+ {value, __X}]});
+ _ -> ok
+ end
+ end)())
+ end).
-endif.
%% Note: Class and Term are patterns, and can not be used for value.
%% Term can be a guarded pattern, but Class cannot.
-ifdef(NOASSERT).
-define(assertException(Class, Term, Expr), ok).
+-define(assertException(Class, Term, Expr, Comment), ok).
-else.
-define(assertException(Class, Term, Expr),
begin
@@ -222,17 +329,54 @@
end
end)())
end).
+-define(assertException(Class, Term, Expr, Comment),
+ begin
+ ((fun () ->
+ try (Expr) of
+ __V -> erlang:error({assertException,
+ [{module, ?MODULE},
+ {line, ?LINE},
+ {comment, (Comment)},
+ {expression, (??Expr)},
+ {pattern,
+ "{ "++(??Class)++" , "++(??Term)
+ ++" , [...] }"},
+ {unexpected_success, __V}]})
+ catch
+ Class:Term -> ok;
+ __C:__T ->
+ erlang:error({assertException,
+ [{module, ?MODULE},
+ {line, ?LINE},
+ {comment, (Comment)},
+ {expression, (??Expr)},
+ {pattern,
+ "{ "++(??Class)++" , "++(??Term)
+ ++" , [...] }"},
+ {unexpected_exception,
+ {__C, __T,
+ erlang:get_stacktrace()}}]})
+ end
+ end)())
+ end).
-endif.
-define(assertError(Term, Expr), ?assertException(error, Term, Expr)).
+-define(assertError(Term, Expr, Comment),
+ ?assertException(error, Term, Expr, Comment)).
-define(assertExit(Term, Expr), ?assertException(exit, Term, Expr)).
+-define(assertExit(Term, Expr, Comment),
+ ?assertException(exit, Term, Expr, Comment)).
-define(assertThrow(Term, Expr), ?assertException(throw, Term, Expr)).
+-define(assertThrow(Term, Expr, Comment),
+ ?assertException(throw, Term, Expr, Comment)).
%% This is the inverse case of assertException, for convenience.
%% Note: Class and Term are patterns, and can not be used for value.
%% Both Class and Term can be guarded patterns.
-ifdef(NOASSERT).
-define(assertNotException(Class, Term, Expr), ok).
+-define(assertNotException(Class, Term, Expr, Comment), ok).
-else.
-define(assertNotException(Class, Term, Expr),
begin
@@ -263,6 +407,36 @@
end
end)())
end).
+-define(assertNotException(Class, Term, Expr, Comment),
+ begin
+ ((fun () ->
+ try (Expr) of
+ _ -> ok
+ catch
+ __C:__T ->
+ case __C of
+ Class ->
+ case __T of
+ Term ->
+ erlang:error({assertNotException,
+ [{module, ?MODULE},
+ {line, ?LINE},
+ {comment, (Comment)},
+ {expression, (??Expr)},
+ {pattern,
+ "{ "++(??Class)++" , "
+ ++(??Term)++" , [...] }"},
+ {unexpected_exception,
+ {__C, __T,
+ erlang:get_stacktrace()
+ }}]});
+ _ -> ok
+ end;
+ _ -> ok
+ end
+ end
+ end)())
+ end).
-endif.
-endif. % ASSERT_HRL
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