From d30586211b41e018869a1a3f4e3af778a31591db Mon Sep 17 00:00:00 2001
From: George Claghorn <george.claghorn@gmail.com>
Date: Thu, 28 Sep 2017 16:43:37 -0400
Subject: Preview PDFs and videos

---
 activestorage/test/template/image_tag_test.rb | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

(limited to 'activestorage/test/template')

diff --git a/activestorage/test/template/image_tag_test.rb b/activestorage/test/template/image_tag_test.rb
index dedc58452e..80f183e0e3 100644
--- a/activestorage/test/template/image_tag_test.rb
+++ b/activestorage/test/template/image_tag_test.rb
@@ -7,7 +7,7 @@ class ActiveStorage::ImageTagTest < ActionView::TestCase
   tests ActionView::Helpers::AssetTagHelper
 
   setup do
-    @blob = create_image_blob filename: "racecar.jpg"
+    @blob = create_file_blob filename: "racecar.jpg"
   end
 
   test "blob" do
@@ -19,6 +19,12 @@ class ActiveStorage::ImageTagTest < ActionView::TestCase
     assert_dom_equal %(<img src="#{polymorphic_url variant}" />), image_tag(variant)
   end
 
+  test "preview" do
+    blob = create_file_blob(filename: "report.pdf", content_type: "application/pdf")
+    preview = blob.preview(resize: "100x100")
+    assert_dom_equal %(<img src="#{polymorphic_url preview}" />), image_tag(preview)
+  end
+
   test "attachment" do
     attachment = ActiveStorage::Attachment.new(blob: @blob)
     assert_dom_equal %(<img src="#{polymorphic_url attachment}" />), image_tag(attachment)
-- 
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