🟡 Constraint error encountered with complex asser...
# questionsn
Nicolay
12/08/2025, 10:43 AMI am hitting this a lot with tests when I am going for a more complex asserts. I cannot really narrow it down.
Constraint error: unknown test (in :1)
Some of my asserts:
Copy code
// Validate Presenting Complaint section
@@assert(has_presenting_complaint_section, {{ this.sections|selectattr('name', 'match', '.*Presenting Complaint.*|.*CO.*')|list|length > 0 }})
@@assert(presenting_complaint_is_simple_list, {{ this.sections|selectattr('name', 'match', '.*Presenting Complaint.*|.*CO.*')|map(attribute='output_format')|first == "simple_list" }})
@@assert(presenting_complaint_has_field_labels, {{ this.sections|selectattr('name', 'match', '.*Presenting Complaint.*|.*CO.*')|map(attribute='field_labels')|first is not none }})
@@assert(presenting_complaint_has_instruction, {{ this.sections|selectattr('name', 'match', '.*Presenting Complaint.*|.*CO.*')|map(attribute='instruction')|first|length > 0 }})
@@assert(presenting_complaint_instruction_mentions_reason, {{ "reason" in (this.sections|selectattr('name', 'match', '.*Presenting Complaint.*|.*CO.*')|map(attribute='instruction')|first|lower) or "visit" in (this.sections|selectattr('name', 'match', '.*Presenting Complaint.*|.*CO.*')|map(attribute='instruction')|first|lower) }})p
prrao
12/08/2025, 12:58 PMDoes BAML support all of minjinja syntax? I presume you're referencing the Rust docs https://docs.rs/minijinja/latest/minijinja/filters/index.html#functions
prrao
12/08/2025, 12:58 PMBut I'm wondering if all filters in minijinja are usable in BAML
prrao
12/08/2025, 12:59 PMselectattr and map don't seem to be documented, nor are there examples. Also, wow. Those are some pretty ugly and hard to read tests 😅
prrao
12/08/2025, 12:59 PMThose are the points at which I take things out of BAML and write the tests in the client language
n
Nicolay
12/08/2025, 1:39 PMhahaha yeah ugly tests but would love to do it in BAML even if ugly
Nicolay
12/08/2025, 1:39 PMI am generating a list of objects so I have to get the right objects and then test validate it
p
prrao
12/08/2025, 1:40 PMI'm also curious to know the subset of minijinja that's supported. And whether the Rust crate is directly lifted and works off the bat, or whether the BAML team need to massage the jinja outputs to work within the BAML test suite
n
Nicolay
12/08/2025, 1:41 PMcc @Vaibhav (BAML 🐑) enlighten us 😛
Nicolay
12/08/2025, 1:45 PMI think to a large degree enums are really buggy.
e.g.
the above lint even though I am doing the correct thing
https://cdn.discordapp.com/attachments/1447539084095655968/1447584887111684106/CleanShot_2025-12-08_at_14.45.00.png?ex=693827fb&is=6936d67b&hm=b0d4f3d4e7cb482a85661fb5e1deb0eb802753f1d6a09982d1372d8f8970f49e&
p
prrao
12/08/2025, 2:01 PMenums are a royal pain in jinja 😭
prrao
12/08/2025, 2:01 PMI think you can only solve it via regex, here's how I did it before
prrao
12/08/2025, 2:01 PMprrao
12/08/2025, 2:02 PMI don't think this is a bug, it's feature, of jinja 😛
prrao
12/08/2025, 2:02 PM*feature being, making one's life harder than it needs to be 🤣
prrao
12/08/2025, 2:03 PMBut yeah its broadly used and out there, so makes sense why it's used in BAML
prrao
12/08/2025, 2:04 PMJinja treats enum values as strings, so that's how we'd handle it in BAML too, is my understanding
v
Vaibhav (BAML 🐑)
12/08/2025, 4:40 PMyea enums in jinja are a bit weird. tho in that case the error just needs to get better. we should be able to fix the linter here! I think its doing the right thing.
Vaibhav (BAML 🐑)
12/08/2025, 4:41 PMwhat is the type of modifer btw?
Vaibhav (BAML 🐑)
12/08/2025, 4:41 PMwe do support almost every minijinja filter. I'm gonna have to dig into this to figure out where the error is coming from. this is one thing we are actively working on fixing!
Vaibhav (BAML 🐑)
12/08/2025, 4:42 PMwe're almost ready to share our way of writing imperitive code, do you can just write if / for statements and never have to think about
|n
Nicolay
12/08/2025, 7:23 PMThat will be marvelous 😂
Nicolay
12/08/2025, 7:23 PMThat jinja stuff broke my head
v
Vaibhav (BAML 🐑)
12/08/2025, 10:28 PMi too hate jinja
Vaibhav (BAML 🐑)
12/08/2025, 10:28 PMit was sadly a necessary evil