Merge pull request #5034 from grischard/patch-4

[rails.git] / test / lib / rich_text_test.rb

diff --git a/test/lib/rich_text_test.rb b/test/lib/rich_text_test.rb
index e1603fb0968e6ab5a08a77bfbb9ff7d8f3fa1a16..63c70b0996f59520e9cde2d4702c5f1a3b16f064 100644 (file)
--- a/test/lib/rich_text_test.rb
+++ b/test/lib/rich_text_test.rb
@@ -8,14 +8,21 @@ class RichTextTest < ActiveSupport::TestCase
     assert_html r do
       assert_select "a", 1
       assert_select "a[href='http://example.com/']", 1
-      assert_select "a[rel='nofollow noopener noreferer']", 1
+      assert_select "a[rel='nofollow noopener noreferrer']", 1
     end
 
     r = RichText.new("html", "foo <a href='http://example.com/'>bar</a> baz")
     assert_html r do
       assert_select "a", 1
       assert_select "a[href='http://example.com/']", 1
-      assert_select "a[rel='nofollow noopener noreferer']", 1
+      assert_select "a[rel='nofollow noopener noreferrer']", 1
+    end
+
+    r = RichText.new("html", "foo <a rel='junk me trash' href='http://example.com/'>bar</a> baz")
+    assert_html r do
+      assert_select "a", 1
+      assert_select "a[href='http://example.com/']", 1
+      assert_select "a[rel='me nofollow noopener noreferrer']", 1
     end
 
     r = RichText.new("html", "foo example@example.com bar")
@@ -27,7 +34,7 @@ class RichTextTest < ActiveSupport::TestCase
     assert_html r do
       assert_select "a", 1
       assert_select "a[href='mailto:example@example.com']", 1
-      assert_select "a[rel='nofollow noopener noreferer']", 1
+      assert_select "a[rel='nofollow noopener noreferrer']", 1
     end
 
     r = RichText.new("html", "foo <div>bar</div> baz")
@@ -47,6 +54,23 @@ class RichTextTest < ActiveSupport::TestCase
       assert_select "style", false
       assert_select "p", /^foo *baz$/
     end
+
+    r = RichText.new("html", "<table><tr><td>column</td></tr></table>")
+    assert_html r do
+      assert_select "table[class='table table-sm w-auto']"
+    end
+
+    r = RichText.new("html", "<p class='btn btn-warning'>Click Me</p>")
+    assert_html r do
+      assert_select "p[class='btn btn-warning']", false
+      assert_select "p", /^Click Me$/
+    end
+
+    r = RichText.new("html", "<p style='color:red'>Danger</p>")
+    assert_html r do
+      assert_select "p[style='color:red']", false
+      assert_select "p", /^Danger$/
+    end
   end
 
   def test_html_to_text
@@ -64,28 +88,35 @@ class RichTextTest < ActiveSupport::TestCase
     assert_html r do
       assert_select "a", 1
       assert_select "a[href='http://example.com/']", 1
-      assert_select "a[rel='nofollow noopener noreferer']", 1
+      assert_select "a[rel='nofollow noopener noreferrer']", 1
     end
 
     r = RichText.new("markdown", "foo [bar](http://example.com/) baz")
     assert_html r do
       assert_select "a", 1
       assert_select "a[href='http://example.com/']", 1
-      assert_select "a[rel='nofollow noopener noreferer']", 1
+      assert_select "a[rel='nofollow noopener noreferrer']", 1
+    end
+
+    r = RichText.new("markdown", "foo <a rel='junk me trash' href='http://example.com/'>bar</a>) baz")
+    assert_html r do
+      assert_select "a", 1
+      assert_select "a[href='http://example.com/']", 1
+      assert_select "a[rel='me nofollow noopener noreferrer']", 1
     end
 
     r = RichText.new("markdown", "foo example@example.com bar")
     assert_html r do
       assert_select "a", 1
       assert_select "a[href='mailto:example@example.com']", 1
-      assert_select "a[rel='nofollow noopener noreferer']", 1
+      assert_select "a[rel='nofollow noopener noreferrer']", 1
     end
 
     r = RichText.new("markdown", "foo [bar](mailto:example@example.com) bar")
     assert_html r do
       assert_select "a", 1
       assert_select "a[href='mailto:example@example.com']", 1
-      assert_select "a[rel='nofollow noopener noreferer']", 1
+      assert_select "a[rel='nofollow noopener noreferrer']", 1
     end
 
     r = RichText.new("markdown", "foo ![bar](http://example.com/example.png) bar")
@@ -145,6 +176,39 @@ class RichTextTest < ActiveSupport::TestCase
     assert_html r do
       assert_select "pre", /^\s*foo bar baz\s*$/
     end
+
+    r = RichText.new("markdown", "|column|column")
+    assert_html r do
+      assert_select "table[class='table table-sm w-auto']"
+    end
+
+    r = RichText.new("markdown", "Click Me\n{:.btn.btn-warning}")
+    assert_html r do
+      assert_select "p[class='btn btn-warning']", false
+      assert_select "p", /^Click Me$/
+    end
+
+    r = RichText.new("markdown", "<p style='color:red'>Danger</p>")
+    assert_html r do
+      assert_select "p[style='color:red']", false
+      assert_select "p", /^Danger$/
+    end
+  end
+
+  def test_markdown_table_alignment
+    # Ensure that kramdown table alignment styles are converted to bootstrap classes
+    markdown_table = <<~MARKDOWN
+      | foo  | bar |
+      |:----:|----:|
+      |center|right|
+    MARKDOWN
+    r = RichText.new("markdown", markdown_table)
+    assert_html r do
+      assert_select "td[style='text-align:center']", false
+      assert_select "td[class='text-center']", true
+      assert_select "td[style='text-align:right']", false
+      assert_select "td[class='text-end']", true
+    end
   end
 
   def test_markdown_to_text
@@ -162,7 +226,7 @@ class RichTextTest < ActiveSupport::TestCase
     assert_html r do
       assert_select "a", 1
       assert_select "a[href='http://example.com/']", 1
-      assert_select "a[rel='nofollow noopener noreferer']", 1
+      assert_select "a[rel='nofollow noopener noreferrer']", 1
     end
 
     r = RichText.new("text", "foo example@example.com bar")
@@ -186,11 +250,137 @@ class RichTextTest < ActiveSupport::TestCase
     assert_equal 141, r.spam_score.round
   end
 
+  def test_text_no_opengraph_properties
+    r = RichText.new("text", "foo https://example.com/ bar")
+    assert_nil r.image
+    assert_nil r.image_alt
+    assert_nil r.description
+  end
+
+  def test_html_no_opengraph_properties
+    r = RichText.new("html", "foo <a href='https://example.com/'>bar</a> baz")
+    assert_nil r.image
+    assert_nil r.image_alt
+    assert_nil r.description
+  end
+
+  def test_markdown_no_image
+    r = RichText.new("markdown", "foo [bar](https://example.com/) baz")
+    assert_nil r.image
+    assert_nil r.image_alt
+  end
+
+  def test_markdown_image
+    r = RichText.new("markdown", "foo ![bar](https://example.com/image.jpg) baz")
+    assert_equal "https://example.com/image.jpg", r.image
+    assert_equal "bar", r.image_alt
+  end
+
+  def test_markdown_first_image
+    r = RichText.new("markdown", "foo ![bar1](https://example.com/image1.jpg) baz\nfoo ![bar2](https://example.com/image2.jpg) baz")
+    assert_equal "https://example.com/image1.jpg", r.image
+    assert_equal "bar1", r.image_alt
+  end
+
+  def test_markdown_image_with_empty_src
+    r = RichText.new("markdown", "![invalid]()")
+    assert_nil r.image
+    assert_nil r.image_alt
+  end
+
+  def test_markdown_skip_image_with_empty_src
+    r = RichText.new("markdown", "![invalid]() ![valid](https://example.com/valid.gif)")
+    assert_equal "https://example.com/valid.gif", r.image
+    assert_equal "valid", r.image_alt
+  end
+
+  def test_markdown_html_image
+    r = RichText.new("markdown", "<img src='https://example.com/img_element.png' alt='alt text here'>")
+    assert_equal "https://example.com/img_element.png", r.image
+    assert_equal "alt text here", r.image_alt
+  end
+
+  def test_markdown_html_image_without_alt
+    r = RichText.new("markdown", "<img src='https://example.com/img_element.png'>")
+    assert_equal "https://example.com/img_element.png", r.image
+    assert_nil r.image_alt
+  end
+
+  def test_markdown_html_image_with_empty_src
+    r = RichText.new("markdown", "<img src='' alt='forgot src'>")
+    assert_nil r.image
+    assert_nil r.image_alt
+  end
+
+  def test_markdown_skip_html_image_with_empty_src
+    r = RichText.new("markdown", "<img src='' alt='forgot src'> <img src='https://example.com/next_img_element.png' alt='have src'>")
+    assert_equal "https://example.com/next_img_element.png", r.image
+    assert_equal "have src", r.image_alt
+  end
+
+  def test_markdown_html_image_without_src
+    r = RichText.new("markdown", "<img alt='totally forgot src'>")
+    assert_nil r.image
+    assert_nil r.image_alt
+  end
+
+  def test_markdown_skip_html_image_without_src
+    r = RichText.new("markdown", "<img alt='totally forgot src'> <img src='https://example.com/next_img_element.png' alt='have src'>")
+    assert_equal "https://example.com/next_img_element.png", r.image
+    assert_equal "have src", r.image_alt
+  end
+
+  def test_markdown_no_description
+    r = RichText.new("markdown", "#Nope")
+    assert_nil r.description
+  end
+
+  def test_markdown_description
+    r = RichText.new("markdown", "This is an article about something.")
+    assert_equal "This is an article about something.", r.description
+  end
+
+  def test_markdown_description_after_heading
+    r = RichText.new("markdown", "#Heading\n\nHere starts the text.")
+    assert_equal "Here starts the text.", r.description
+  end
+
+  def test_markdown_description_after_image
+    r = RichText.new("markdown", "![bar](https://example.com/image.jpg)\n\nThis is below the image.")
+    assert_equal "This is below the image.", r.description
+  end
+
+  def test_markdown_description_only_first_paragraph
+    r = RichText.new("markdown", "This thing.\n\nMaybe also that thing.")
+    assert_equal "This thing.", r.description
+  end
+
+  def test_markdown_description_elements
+    r = RichText.new("markdown", "*Something* **important** [here](https://example.com/).")
+    assert_equal "Something important here.", r.description
+  end
+
+  def test_markdown_html_description
+    r = RichText.new("markdown", "<p>Can use HTML tags.</p>")
+    assert_equal "Can use HTML tags.", r.description
+  end
+
+  def test_markdown_description_max_length
+    r = RichText.new("markdown", "x" * RichText::MAX_DESCRIPTION_LENGTH)
+    assert_equal "x" * RichText::MAX_DESCRIPTION_LENGTH, r.description
+
+    r = RichText.new("markdown", "y" * (RichText::MAX_DESCRIPTION_LENGTH + 1))
+    assert_equal "#{'y' * (RichText::MAX_DESCRIPTION_LENGTH - 3)}...", r.description
+
+    r = RichText.new("markdown", "*zzzzzzzzz*z" * ((RichText::MAX_DESCRIPTION_LENGTH + 1) / 10.0).ceil)
+    assert_equal "#{'z' * (RichText::MAX_DESCRIPTION_LENGTH - 3)}...", r.description
+  end
+
   private
 
   def assert_html(richtext, &block)
     html = richtext.to_html
-    assert html.html_safe?
+    assert_predicate html, :html_safe?
     root = Nokogiri::HTML::DocumentFragment.parse(html)
     assert_select root, "*" do
       yield block