clojure.test/are substitutes via clojure.template

are let-bound its template vars, so a var inside quote never substituted:
(are [x] (special-symbol? 'x) if def) tested the literal symbol x twice.
Rebuild are on clojure.template/do-template (postwalk substitution), the
same architecture as upstream, with the same arg-count check.

This un-aborts every suite namespace whose are rows need substitution:
cts baseline moves 5302->5614 pass, 236->192 errors, 88->84 baselined
namespaces. The newly-reachable assertions also surface real divergences
now baselined and filed (edn reader strictness, Boolean ctor).
This commit is contained in:
Yogthos 2026-07-02 05:57:57 -04:00
parent 53a8aac2d0
commit 86e36e8bee
4 changed files with 61 additions and 21 deletions

View file

@ -196,6 +196,42 @@ cases; clojure-test-suite `core_test/parse_uuid.cljc`,
---
### clojure.template/apply-template, clojure.test/are — since 1.1
```
(apply-template argv expr values)
(are argv expr & args)
```
**Semantics**
- S1. `apply-template` MUST replace every occurrence of each `argv` symbol
in `expr` with its corresponding value by structural walk (postwalk symbol
substitution), not by lexical binding. Occurrences inside `quote` and at
any nesting depth substitute: `(apply-template '[x] '(f 'x) '[if])`
`(f 'if)`.
- S2. `do-template` MUST partition `args` by `(count argv)` and expand to a
`do` of one substituted `expr` per group.
- S3. `clojure.test/are` MUST expand through `do-template` with `expr`
wrapped in `is`. Consequently `(are [x] (special-symbol? 'x) if def)`
asserts `(special-symbol? 'if)` and `(special-symbol? 'def)` — a
let-binding implementation is non-conforming (the quoted symbol would not
substitute).
**Errors**
- X1. `are` MUST throw at macroexpansion when `(count args)` is not a
positive multiple of a non-empty `(count argv)` (empty/empty is allowed).
- X2. `apply-template` MUST throw when `argv` is not a vector of symbols.
**Conformance**
S1S3 → `test/chez/clojure-test.clj` (are with quoted template var);
clojure-test-suite `core_test/special_symbol_qmark.cljc` and every
`are`-based suite namespace.
---
## Authoring notes
- Source examples from the ClojureDocs export (`clojuredocs-export.edn`,