Fixes #89445 (well, technically. It fixes the bug associated but these `say`s should really be emotes.) Three things: 1. Reworks how language translation works. Rather than scrambling a sentence into a language entirely, sentences are now scrambled on a per-word basis. Additionally, the 1000 most common words of a language are *never* re-scrambled across the duration of a round. Once it's set it's set in stone. Example: (Sample / Old / New)  This allows for a number of things: - More consistent translations, making it (more) viable to actually "teach" someone words for something - Maintaining emphasis such as caps (but not `||`, `++`, or `__` - at least not yet) - The following: 2. Adds partial language understanding Some languages can understand portions of other languages.  This pr adds the following: - Those who understand Beachtongue can understand 50% of Common and 33% of Uncommon words. - Those who understand Common can understand 33% of Beachtongue and 20% of Uncommon words. - Those who understand Uncommon can understand 20% of Common and 20% of Beachtongue words. 3. Bilingual quirk has been expanded to accomodate these changes. There are now two more preferences: - Language Speakable - You can toggle this, so you only understand the language, rather than understand AND speak. - Language Skill - If you choose to be unable to speak the language, you can set how much of the language you can understand, down to 10%. Playing around languages is fun, but due to the way our translation works, ALL context is immediately lost for what the other person may be saying. If the other person is shouting in all caps? Output language is normal chatting. This is lame! Even if someone is unable to understand you, there's a LOT you can convey just by how you speak, and getting that across in game is quite difficult when all translations get mauled so badly. So this changes that. - Emphasis like caps lock is maintained, so you see someone shouting in caps in a foreign language you can probably intuit something is wrong (but not what is wrong!) - Some languages can gleam bits of other languages, so you MIGHT be able to pick out context if you pay close attention - "Brother" languages will now feel more like "brothers" and not completely divergent - You can even "teach" someone words in your language - at least the most common words! (Until next round) 🆑 Melbert add: Languages can now have partial understanding of other languages. More common English words are more likely to be mutually understood. add: Those who understand Beachtongue can understand 50% of Common and 33% of Uncommon words. add: Those who understand Common can understand 33% of Beachtongue and 20% of Uncommon words. add: Those who understand Uncommon can understand 20% of Common and 20% of Beachtongue words. add: Bilingual quirk: You can now choose between being able to speak or not speak the language add: Bilingual quirk: You can now choose to have partial understanding of your language, rather than full. qol: If you speak in ALL CAPS in a foreign language, the translated words will also be ALL CAPS. qol: Many more forms of punctuation are now conveyed across translations. qol: The 1000 most common English words will now never be scrambled when translating into other languages for the duration of the round. This means you can actually "learn" some words if you are especially attentive! (Until the next round at least) refactor: Refactored language translations. Report if you see any super odd looking translations. fix: Force-says forcing you to speak common (such as cult invocations) will now correctly force you to speak common (even if you don't know common) /🆑
Unit Tests
What is unit testing?
Unit tests are automated code to verify that parts of the game work exactly as they should. For example, a test to make sure that the amputation surgery actually amputates the limb. These are ran every time a PR is made, and thus are very helpful for preventing bugs from cropping up in your code that would've otherwise gone unnoticed. For example, would you have thought to check that beach boys would still work the same after editing pizza? If you value your time, probably not.
On their most basic level, when UNIT_TESTS is defined, all subtypes of /datum/unit_test will have their Run proc executed. From here, if Fail is called at any point, then the tests will report as failed.
How do I write one?
- Find a relevant file.
All unit test related code is in code/modules/unit_tests. If you are adding a new test for a surgery, for example, then you'd open surgeries.dm. If a relevant file does not exist, simply create one in this folder, then #include it in _unit_tests.dm.
- Create the unit test.
To make a new unit test, you simply need to define a /datum/unit_test.
For example, let's suppose that we are creating a test to make sure a proc square correctly raises inputs to the power of two. We'd start with first:
/datum/unit_test/square/Run()
This defines our new unit test, /datum/unit_test/square. Inside this function, we're then going to run through whatever we want to check. Tests provide a few assertion functions to make this easy. For now, we're going to use TEST_ASSERT_EQUAL.
/datum/unit_test/square/Run()
TEST_ASSERT_EQUAL(square(3), 9, "square(3) did not return 9")
TEST_ASSERT_EQUAL(square(4), 16, "square(4) did not return 16")
As you can hopefully tell, we're simply checking if the output of square matches the output we are expecting. If the test fails, it'll report the error message given as well as whatever the actual output was.
- Run the unit test
Open code/_compile_options.dm and uncomment the following line.
//#define UNIT_TESTS //If this is uncommented, we do a single run though of the game setup and tear down process with unit tests in between
There are 3 ways to run unit tests
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Run tgstation.dmb in Dream Daemon. Don't bother trying to connect, you won't need to. You'll be able to see the outputs of all the tests. You'll get to see which tests failed and for what reason. If they all pass, you're set!
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Launch game from VS Code. Launch the game as normal & you will see the output of your unit tests in your fancy chat window. This is preferred as you can use the debugger to step through each line of your unit test & can use the games inbuilt debugging tools to further aid in testing
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Use VS Code Tgstation Test Explorer Extension. This allows you to run tests without launching the game & can also run focused tests(either a single or a selected group)
How to think about tests
Unit tests exist to prevent bugs that would happen in a real game. Thus, they should attempt to emulate the game world wherever possible. For example, the quick swap sanity test emulates a real scenario of the bug it fixed occurring by creating a character and giving it real items. The unrecommended alternative would be to create special test-only items. This isn't a hard rule, the reagent method exposure tests create a test-only reagent for example, but do keep it in mind.
Unit tests should also be just that--testing units of code. For example, instead of having one massive test for reagents, there are instead several smaller tests for testing exposure, metabolization, etc.
The unit testing API
You can find more information about all of these from their respective doc comments, but for a brief overview:
/datum/unit_test - The base for all tests to be ran. Subtypes must override Run(). New() and Destroy() can be used for setup and teardown. To fail, use TEST_FAIL(reason).
/datum/unit_test/proc/allocate(type, ...) - Allocates an instance of the provided type with the given arguments. Is automatically destroyed when the test is over. Commonly seen in the form of var/mob/living/carbon/human/human = allocate(/mob/living/carbon/human/consistent).
TEST_FAIL(reason) - Marks a failure at this location, but does not stop the test.
TEST_ASSERT(assertion, reason) - Stops the unit test and fails if the assertion is not met. For example: TEST_ASSERT(powered(), "Machine is not powered").
TEST_ASSERT_NOTNULL(a, message) - Same as TEST_ASSERT, but checks if !isnull(a). For example: TEST_ASSERT_NOTNULL(myatom, "My atom was never set!").
TEST_ASSERT_NULL(a, message) - Same as TEST_ASSERT, but checks if isnull(a). If not, gives a helpful message showing what a was. For example: TEST_ASSERT_NULL(delme, "Delme was never cleaned up!").
TEST_ASSERT_EQUAL(a, b, message) - Same as TEST_ASSERT, but checks if a == b. If not, gives a helpful message showing what both a and b were. For example: TEST_ASSERT_EQUAL(2 + 2, 4, "The universe is falling apart before our eyes!").
TEST_ASSERT_NOTEQUAL(a, b, message) - Same as TEST_ASSERT_EQUAL, but reversed.
TEST_FOCUS(test_path) - Only run the test provided within the parameters. Useful for reducing noise. For example, if we only want to run our example square test, we can add TEST_FOCUS(/datum/unit_test/square). Should never be pushed in a pull request--you will be laughed at.
Final Notes
- Writing tests before you attempt to fix the bug can actually speed up development a lot! It means you don't have to go in game and folllow the same exact steps manually every time. This process is known as "TDD" (test driven development). Write the test first, make sure it fails, then start work on the fix/feature, and you'll know you're done when your tests pass. If you do try this, do make sure to confirm in a non-testing environment just to double check.
- Make sure that your tests don't accidentally call RNG functions like
prob. Since RNG is seeded during tests, you may not realize you have until someone else makes a PR and the tests fail! - Do your best not to change the behavior of non-testing code during tests. While it may sometimes be necessary in the case of situations such as the above, it is still a slippery slope that can lead to the code you're testing being too different from the production environment to be useful.