Add test for missing cljs source (#682)

Author: borkdude

test/nextjournal/clerk/fixtures/render_fns.cljs

@@ -0,0 +1,6 @@
+(ns nextjournal.clerk.fixtures.render-fns
+  (:require [non-existing-namespace :as s]))
+
+(defn foobar []
+  (s/dude))
+

test/nextjournal/clerk/fixtures/require_cljs_with_missing_cljs_file.clj

@@ -0,0 +1,10 @@
+(ns nextjournal.clerk.fixtures.require-cljs-with-missing-cljs-file
+  (:require [nextjournal.clerk :as clerk]))
+
+(def viewer
+  {:require-cljs true
+   :render-fn 'not-existing/dude
+   :transform-fn identity})
+
+(clerk/with-viewer viewer 1)
+

test/nextjournal/clerk/fixtures/require_cljs_with_transitive_missing_cljs_file.clj

@@ -0,0 +1,10 @@
+(ns nextjournal.clerk.fixtures.require-cljs-with-transitive-missing-cljs-file
+  (:require [nextjournal.clerk :as clerk]))
+
+(def viewer
+  {:require-cljs true
+   :render-fn 'nextjournal.clerk.fixtures.render-fns/foobar
+   :transform-fn identity})
+
+(clerk/with-viewer viewer 1)
+

test/nextjournal/clerk/require_cljs_test.clj

@@ -0,0 +1,15 @@
+(ns nextjournal.clerk.require-cljs-test
+  (:require [clojure.test :as t :refer [deftest is]]
+            [nextjournal.clerk :as clerk]))
+
+(deftest throw-on-missing-cljs-source-test
+  (is (thrown-with-msg? Exception #"Could not find source for CLJS namespace: not-existing"
+                        (clerk/show! 'nextjournal.clerk.fixtures.require-cljs-with-missing-cljs-file)))
+  (is (thrown-with-msg? Exception #"Could not find source for CLJS namespace: non-existing-namespace"
+                        (clerk/show! 'nextjournal.clerk.fixtures.require-cljs-with-transitive-missing-cljs-file))))
+
+;;;; Scratch
+
+(comment
+  (t/run-tests)
+  )