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).

docs/spec/09-core-library.md

@@ -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**
+
+S1–S3 → `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`,

stdlib/clojure/test.clj

@@ -11,7 +11,8 @@
 ; is a drop-in superset.
 
 (ns clojure.test
-  (:require [clojure.string :as str]))
+  (:require [clojure.string :as str]
+            [clojure.template :as temp]))
 
 ;; --- state -----------------------------------------------------------------
 
@@ -216,13 +217,16 @@
                                         :fn ~name})
      (var ~name)))
 
-(defmacro are [argv expr & data]
+;; Template substitution (not let-binding), so argv symbols substitute inside
-  (let [n (count argv)
+;; quote and nested forms: (are [x] (special-symbol? 'x) if def) tests 'if.
-        rows (partition n data)]
+(defmacro are [argv expr & args]
-    `(do ~@(map (fn [row]
+  (if (or (and (empty? argv) (empty? args))
-                  `(let [~@(interleave argv row)]
+          (and (pos? (count argv))
-                     (clojure.test/is ~expr)))
+               (pos? (count args))
-                rows))))
+               (zero? (mod (count args) (count argv)))))
+    `(clojure.template/do-template ~argv (clojure.test/is ~expr) ~@args)
+    (throw (IllegalArgumentException.
+            "The number of args doesn't match are's argv or neither are empty"))))
 
 ;; --- fixtures + run --------------------------------------------------------
 

test/chez/clojure-test.clj

@@ -36,6 +36,10 @@
   (are [x y] (= x y)
     2 (+ 1 1)
     6 (* 2 3))
+  ;; template vars substitute inside quote (are is clojure.template, not let)
+  (are [x] (special-symbol? 'x)
+    if
+    def)
   (is (thrown? clojure.lang.ExceptionInfo (throw (ex-info "x" {}))))
   (is (thrown-with-msg? Exception #"bad" (throw (ex-info "bad" {}))))
   (is (near? 1.0 1.005))
@@ -52,10 +56,10 @@
 (t/do-report {:type ::trial})
 (t/do-report {:type ::trial})
 
-;; 8 pass (= + vector? + 2 are rows + thrown? + thrown-with-msg? + near? + p/thrown?),
+;; 10 pass (= + vector? + 4 are rows + thrown? + thrown-with-msg? + near? + p/thrown?),
 ;; 2 fail (= 1 2, near? 1.0 5.0), 0 error, 2 fixture runs, 2 custom reports
-(let [ok (and (= (t/n-pass) 8) (= (t/n-fail) 2) (= (t/n-error) 0)
+(let [ok (and (= (t/n-pass) 10) (= (t/n-fail) 2) (= (t/n-error) 0)
-              (= 2 (:test r1)) (= 8 (:pass r1)) (= 2 (:fail r1))
+              (= 2 (:test r1)) (= 10 (:pass r1)) (= 2 (:fail r1))
               (= 0 (:test r2)) (= 0 (:pass r2))
               (= @setups 2) (= @trials 2))]
   (println (if ok

test/chez/cts-known-failures.txt

@@ -7,7 +7,7 @@ clojure.core-test.ancestors 9 0
 clojure.core-test.atom 14 0
 clojure.core-test.bigint 6 0
 clojure.core-test.bit-set 1 0
-clojure.core-test.boolean-qmark 0 1
+clojure.core-test.boolean-qmark 0 3
 clojure.core-test.byte 7 5
 clojure.core-test.char 1 0
 clojure.core-test.compare 1 0
@@ -26,8 +26,6 @@ clojure.core-test.eval 0 3
 clojure.core-test.even-qmark 1 0
 clojure.core-test.float 4 4
 clojure.core-test.get 0 1
-clojure.core-test.gt 0 2
-clojure.core-test.gt-eq 0 2
 clojure.core-test.ifn-qmark 2 0
 clojure.core-test.inc 1 0
 clojure.core-test.int 4 5
@@ -36,8 +34,6 @@ clojure.core-test.intern 2 0
 clojure.core-test.keys 0 4
 clojure.core-test.lazy-seq 3 0
 clojure.core-test.long 2 5
-clojure.core-test.lt 0 2
-clojure.core-test.lt-eq 0 2
 clojure.core-test.max 3 1
 clojure.core-test.min 3 1
 clojure.core-test.minus 2 0
@@ -56,23 +52,23 @@ clojure.core-test.plus 11 0
 clojure.core-test.plus-squote 11 0
 clojure.core-test.pop 0 1
 clojure.core-test.pos-int-qmark 1 0
-clojure.core-test.quot 12 31
+clojure.core-test.quot 12 23
 clojure.core-test.rand-nth 0 1
 clojure.core-test.rational-qmark 3 0
 clojure.core-test.rationalize 10 0
 clojure.core-test.realized-qmark 3 0
 clojure.core-test.reduce 0 1
-clojure.core-test.rem 12 30
+clojure.core-test.rem 12 22
 clojure.core-test.remove-watch 0 1
 clojure.core-test.run-bang 1 0
 clojure.core-test.select-keys 2 0
 clojure.core-test.seqable-qmark 1 0
 clojure.core-test.short 7 5
 clojure.core-test.shuffle 1 0
-clojure.core-test.slash 2 48
+clojure.core-test.slash 2 22
 clojure.core-test.some-fn 3 0
 clojure.core-test.sort-by 2 0
-clojure.core-test.special-symbol-qmark 20 0
+clojure.core-test.special-symbol-qmark 4 0
 clojure.core-test.star 22 0
 clojure.core-test.star-squote 19 0
 clojure.core-test.transient 23 0
@@ -82,7 +78,7 @@ clojure.core-test.vals 0 3
 clojure.core-test.vec 1 0
 clojure.core-test.when-let 1 0
 clojure.core-test.with-precision 17 0
-clojure.edn-test.read-string 0 1
+clojure.edn-test.read-string 46 5
 clojure.string-test.capitalize 0 4
 clojure.string-test.ends-with-qmark 1 4
 clojure.string-test.escape 1 0