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|
def f() =
# Works as expected with no errors
ret =
try
4
catch _ do
5
end
test.equal(ret, 4)
e = error.register("foo")
# Works as expected with no errors
ret =
try
4
catch _ : [e] do
5
end
test.equal(ret, 4)
# Can report kind
ret =
try
error.raise(e)
"bla"
catch err do
err.kind
end
test.equal(ret, "foo")
# Can report empty message
ret =
try
error.raise(e)
"bla"
catch err do
err.message
end
test.equal(ret, "")
# Can report set message
ret =
try
error.raise(e, "msg")
"bla"
catch err do
err.message ?? "blo"
end
test.equal(ret, "msg")
# Can report stack trace
trace =
try
error.raise(e, "msg")
[]
catch err do
err.trace
end
pos =
string.concat(
separator=
", ",
list.map(fun (pos) -> pos.to_string(), trace)
)
test.equal(r/error.liq, line 58 char 4 - line 63 char 7/.test(pos), true)
test.equal(r/thread.liq, line 19, char 11-14/.test(pos), true)
e' = error.register("bla")
test.equal(false, (e == e'))
# Ignores errors when not in list
ret =
try
try
error.raise(e, "msg")
"bla"
catch _ : [e'] do
"blo"
end
catch _ : [e] do
"gni"
end
test.equal(ret, "gni")
# Ignore errors when list is empty
ret =
try
try
error.raise(e, "msg")
"bla"
catch _ : [] do
"blo"
end
catch _ : [e] do
"gni"
end
test.equal(ret, "gni")
# Catches error when in list
ret =
try
try
error.raise(e, "msg")
"bla"
catch _ : [e, e'] do
"blo"
end
catch _ : [e] do
"gni"
end
test.equal(ret, "blo")
on_error = ref(error.register("dummy"))
error.on_error(fun (e) -> on_error := e)
try
error.raise(
e,
"On done callback"
)
catch _ : [e] do
()
end
if (on_error()).kind != e.kind then test.fail() end
if
(on_error()).message !=
"On done callback"
then
test.fail()
end
def on_done() =
test.pass()
end
# Works as expected with finally
ret = ref(false)
try
()
finally
ret := true
end
test.equal(ret(), true)
ret = ref(false)
try
()
catch _ do
()
finally
ret := true
end
test.equal(ret(), true)
ret = ref(false)
try
error.raise(error.not_found)
catch _ do
()
finally
ret := true
end
test.equal(ret(), true)
ret = ref(false)
try
error.raise(error.not_found)
catch _ : [error.not_found] do
()
finally
ret := true
end
test.equal(ret(), true)
ret = ref(false)
try
try
error.raise(error.not_found)
catch _ : [error.not_found] do
error.raise(error.failure)
finally
ret := true
end
catch _ : [error.failure] do
()
end
test.equal(ret(), true)
# Catches error
def on_error(~backtrace, e) =
print(
"caught error #{e} from thread and backtrace:\n#{backtrace}"
)
if e.kind == "foo" then on_done() else test.fail() end
end
thread.on_error(e, on_error)
thread.run(
fun () ->
error.raise(
e,
"Asynchronous error"
)
)
end
test.check(f)
|
