Add :clj-kondo-test alias for local testing

Adds a deps.edn alias to run clj-kondo hook tests locally:
  clj -M:clj-kondo-test

This runs the same hook verification tests as CI but via
the Clojure test-runner instead of shell scripts.

Author: jjtolton

deps.edn

@@ -71,4 +71,12 @@
             :exec-args {:installer :local
                         :artifact "target/libpython-clj.jar"}}
 
+           :clj-kondo-test
+           {:extra-deps {com.cognitect/test-runner
+                         {:git/url "https://github.com/cognitect-labs/test-runner"
+                          :sha "209b64504cb3bd3b99ecfec7937b358a879f55c1"}}
+            :extra-paths ["test"]
+            :main-opts ["-m" "cognitect.test-runner"
+                        "-n" "clj-kondo.hook-test"]}
+
            }}

test/clj_kondo/hook_test.clj

@@ -0,0 +1,37 @@
+(ns clj-kondo.hook-test
+  (:require [clojure.test :refer [deftest testing is]]
+            [clojure.java.shell :refer [sh]]
+            [clojure.string :as str]))
+
+(def ^:private config-dir
+  "resources/clj-kondo.exports/clj-python/libpython-clj")
+
+(def ^:private fixtures-dir
+  "test/clj_kondo/fixtures")
+
+(defn- run-clj-kondo [file]
+  (sh "clj-kondo" "--lint" file "--config-dir" config-dir))
+
+(defn- has-require-python-errors? [output]
+  (boolean (re-find #"(Unknown require option|:bind-ns|:reload|:no-arglists)" output)))
+
+(defn- has-unresolved-refer-errors? [output]
+  (boolean (re-find #"Unresolved symbol: (webpush|secure_filename|urlencode|urlparse)" output)))
+
+(deftest require-python-hook-test
+  (testing "require_python_test.clj - basic require-python usage"
+    (let [{:keys [out err]} (run-clj-kondo (str fixtures-dir "/require_python_test.clj"))
+          output (str out err)]
+      (is (not (has-require-python-errors? output))
+          (str "Found require-python errors in output:\n" output))
+      (is (not (has-unresolved-refer-errors? output))
+          (str "Found unresolved symbol errors for referred symbols:\n" output)))))
+
+(deftest require-python-edge-cases-test
+  (testing "require_python_edge_cases.clj - edge cases and variations"
+    (let [{:keys [out err]} (run-clj-kondo (str fixtures-dir "/require_python_edge_cases.clj"))
+          output (str out err)]
+      (is (not (has-require-python-errors? output))
+          (str "Found require-python errors in output:\n" output))
+      (is (not (has-unresolved-refer-errors? output))
+          (str "Found unresolved symbol errors for referred symbols:\n" output)))))