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patch 8.0.1770: assert functions don't return anything

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Problem:    Assert functions don't return anything.
Solution:   Return non-zero when the assertion fails.
This commit is contained in:
Bram Moolenaar
2018-04-28 16:56:53 +02:00
parent 9b25af3620
commit 65a5464985
6 changed files with 149 additions and 105 deletions
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56
runtime/doc/eval.txt
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@@ -1,4 +1,4 @@
*eval.txt* For Vim version 8.0. Last change: 2018 Apr 20
*eval.txt* For Vim version 8.0. Last change: 2018 Apr 28
VIM REFERENCE MANUAL by Bram Moolenaar
@@ -1548,10 +1548,12 @@ v:errmsg Last given error message. It's allowed to set this variable.
: ... handle error
< "errmsg" also works, for backwards compatibility.
*v:errors* *errors-variable*
*v:errors* *errors-variable* *assert-return*
v:errors Errors found by assert functions, such as |assert_true()|.
This is a list of strings.
The assert functions append an item when an assert fails.
The return value indicates this: a one is returned if an item
was added to v:errors, otherwise zero is returned.
To remove old results make it empty: >
:let v:errors = []
< If v:errors is set to anything but a list it is made an empty
@@ -2020,26 +2022,26 @@ argidx() Number current index in the argument list
arglistid([{winnr} [, {tabnr}]]) Number argument list id
argv({nr}) String {nr} entry of the argument list
argv() List the argument list
assert_beeps({cmd}) none assert {cmd} causes a beep
assert_beeps({cmd}) Number assert {cmd} causes a beep
assert_equal({exp}, {act} [, {msg}])
none assert {exp} is equal to {act}
Number assert {exp} is equal to {act}
assert_equalfile({fname-one}, {fname-two})
none assert file contents is equal
Number assert file contents is equal
assert_exception({error} [, {msg}])
none assert {error} is in v:exception
assert_fails({cmd} [, {error}]) none assert {cmd} fails
Number assert {error} is in v:exception
assert_fails({cmd} [, {error}]) Number assert {cmd} fails
assert_false({actual} [, {msg}])
none assert {actual} is false
Number assert {actual} is false
assert_inrange({lower}, {upper}, {actual} [, {msg}])
none assert {actual} is inside the range
Number assert {actual} is inside the range
assert_match({pat}, {text} [, {msg}])
none assert {pat} matches {text}
Number assert {pat} matches {text}
assert_notequal({exp}, {act} [, {msg}])
none assert {exp} is not equal {act}
Number assert {exp} is not equal {act}
assert_notmatch({pat}, {text} [, {msg}])
none assert {pat} not matches {text}
assert_report({msg}) none report a test failure
assert_true({actual} [, {msg}]) none assert {actual} is true
Number assert {pat} not matches {text}
assert_report({msg}) Number report a test failure
assert_true({actual} [, {msg}]) Number assert {actual} is true
asin({expr}) Float arc sine of {expr}
atan({expr}) Float arc tangent of {expr}
atan2({expr1}, {expr2}) Float arc tangent of {expr1} / {expr2}
@@ -2593,12 +2595,13 @@ argv([{nr}]) The result is the {nr}th file in the argument list of the
assert_beeps({cmd}) *assert_beeps()*
Run {cmd} and add an error message to |v:errors| if it does
NOT produce a beep or visual bell.
Also see |assert_fails()|.
Also see |assert_fails()| and |assert-return|.
*assert_equal()*
assert_equal({expected}, {actual} [, {msg}])
When {expected} and {actual} are not equal an error message is
added to |v:errors|.
added to |v:errors| and 1 is returned. Otherwise zero is
returned |assert-return|.
There is no automatic conversion, the String "4" is different
from the Number 4. And the number 4 is different from the
Float 4.0. The value of 'ignorecase' is not used here, case
@@ -2614,13 +2617,14 @@ assert_equal({expected}, {actual} [, {msg}])
assert_equalfile({fname-one}, {fname-two})
When the files {fname-one} and {fname-two} do not contain
exactly the same text an error message is added to |v:errors|.
Also see |assert-return|.
When {fname-one} or {fname-two} does not exist the error will
mention that.
Mainly useful with |terminal-diff|.
assert_exception({error} [, {msg}]) *assert_exception()*
When v:exception does not contain the string {error} an error
message is added to |v:errors|.
message is added to |v:errors|. Also see |assert-return|.
This can be used to assert that a command throws an exception.
Using the error number, followed by a colon, avoids problems
with translations: >
@@ -2633,14 +2637,15 @@ assert_exception({error} [, {msg}]) *assert_exception()*
assert_fails({cmd} [, {error}]) *assert_fails()*
Run {cmd} and add an error message to |v:errors| if it does
NOT produce an error.
NOT produce an error. Also see |assert-return|.
When {error} is given it must match in |v:errmsg|.
Note that beeping is not considered an error, and some failing
commands only beep. Use |assert_beeps()| for those.
assert_false({actual} [, {msg}]) *assert_false()*
When {actual} is not false an error message is added to
|v:errors|, like with |assert_equal()|.
|v:errors|, like with |assert_equal()|.
Also see |assert-return|.
A value is false when it is zero. When {actual} is not a
number the assert fails.
When {msg} is omitted an error in the form
@@ -2649,7 +2654,7 @@ assert_false({actual} [, {msg}]) *assert_false()*
assert_inrange({lower}, {upper}, {actual} [, {msg}]) *assert_inrange()*
This asserts number values. When {actual} is lower than
{lower} or higher than {upper} an error message is added to
|v:errors|.
|v:errors|. Also see |assert-return|.
When {msg} is omitted an error in the form
"Expected range {lower} - {upper}, but got {actual}" is
produced.
@@ -2657,7 +2662,7 @@ assert_inrange({lower}, {upper}, {actual} [, {msg}]) *assert_inrange()*
*assert_match()*
assert_match({pattern}, {actual} [, {msg}])
When {pattern} does not match {actual} an error message is
added to |v:errors|.
added to |v:errors|. Also see |assert-return|.
{pattern} is used as with |=~|: The matching is always done
like 'magic' was set and 'cpoptions' is empty, no matter what
@@ -2678,18 +2683,22 @@ assert_match({pattern}, {actual} [, {msg}])
assert_notequal({expected}, {actual} [, {msg}])
The opposite of `assert_equal()`: add an error message to
|v:errors| when {expected} and {actual} are equal.
Also see |assert-return|.
*assert_notmatch()*
assert_notmatch({pattern}, {actual} [, {msg}])
The opposite of `assert_match()`: add an error message to
|v:errors| when {pattern} matches {actual}.
Also see |assert-return|.
assert_report({msg}) *assert_report()*
Report a test failure directly, using {msg}.
Always returns one.
assert_true({actual} [, {msg}]) *assert_true()*
When {actual} is not true an error message is added to
|v:errors|, like with |assert_equal()|.
Also see |assert-return|.
A value is TRUE when it is a non-zero number. When {actual}
is not a number the assert fails.
When {msg} is omitted an error in the form "Expected True but
@@ -5392,10 +5401,11 @@ job_getchannel({job}) *job_getchannel()*
<
{only available when compiled with the |+job| feature}
job_info({job}) *job_info()*
job_info([{job}]) *job_info()*
Returns a Dictionary with information about {job}:
"status" what |job_status()| returns
"channel" what |job_getchannel()| returns
"cmd" List of command arguments used to start the job
"process" process ID
"tty_in" terminal input name, empty when none
"tty_out" terminal output name, empty when none
@@ -5403,6 +5413,8 @@ job_info({job}) *job_info()*
"exit_cb" function to be called on exit
"stoponexit" |job-stoponexit|
Without any arguments, returns a List with all Job objects.
job_setoptions({job}, {options}) *job_setoptions()*
Change options for {job}. Supported are:
"stoponexit" |job-stoponexit|