fix #19 by supporting regex as dynamic predicate

Author: seancorfield

CHANGELOG.md

@@ -4,6 +4,7 @@
 
 * 2.0.x in progress (alpha3?)
   * Address #22 by adding `clj-kondo.exports` (this is just a first pass; the `:lint-as` mappings will probably be replaced by hooks in the future).
+  * Fix #19 by supporting regex/patterns dynamically inside `?=` (as well as the compile-time support already in `expect`).
   * Update `build-clj` to v0.5.0.
   * Switch to `build.clj`/`tools.build` for CI/deploy.
 

src/expectations/clojure/test.cljc

@@ -174,6 +174,10 @@
                     (valid?# e# a#)
                     (fn? e#)
                     (e# a#)
+                    (isa? (type e#)
+                          #?(:clj java.util.regex.Pattern
+                             :cljs (type #"regex")))
+                    (some? (re-find e# a#))
                     :else
                     (= e# a#))
            humane?# (and humane-test-output? (not (fn? e#)) (not ~conform?))]

test/expectations/clojure/test_test.cljc

@@ -194,3 +194,6 @@
            (is-not' (sut/expect "abcdef" (str "abc" "efg"))
                     ["abcefg"]
                     #"(?is)(str \"abc\" \"efg\").*matches: \"abc\"")))
+
+(deftest issue-19-regex-test
+  (is (sut/expect (re-pattern "\\d+") "1000")))