test: add ad-hoc tests for CSS :has pseudoselector

sparklemotion · Apr 22, 2019 · 8f01e8f · 8f01e8f
1 parent 68e50c5
commit 8f01e8f
Showing 1 changed file with 122 additions and 0 deletions.
diff --git a/test/css/test_css_integration.rb b/test/css/test_css_integration.rb
@@ -67,6 +67,34 @@ def setup
           </html>
         EOF
         @parser = Nokogiri.HTML doc
+
+        @nested = Nokogiri.HTML(<<~EOF)
+          <html><body>
+            <div class='unnested'>
+              <b>bold1 </b>
+              <i>italic1 </i>
+              <b class="a">bold2 </b>
+              <em class="a">emphasis1 </em>
+              <i>italic2 </i>
+              <p>para1 </p>
+            </div>
+
+            <div class='nested nested-parent'>
+              <div class='nested nested-child'>
+                <b>bold1 </b>
+                <i>italic1 </i>
+                <b class="a">bold2 </b>
+                <em class="a">emphasis1 </em>
+                <i>italic2 </i>
+              </div>
+            </div>
+
+            <div class="nerp">
+              <i>nerrrrp</i>
+              <a>nerp</a>
+              <b>also nerp</b>
+            </div>
+        EOF
       end
 
       def test_even
@@ -216,6 +244,100 @@ def test_siblings
         assert_equal 0, parser.search("#5 + p").size
       end
 
+      def test_has_a
+        result = @nested.css("div:has(em)")
+        expected = [
+          @nested.at_css(".unnested"),
+          @nested.at_css(".nested-parent"),
+          @nested.at_css(".nested-child"),
+        ]
+        assert_equal expected, result.to_a
+      end
+
+      def test_has_a_gt_b
+        result = @nested.css("body *:has(div > em)")
+        expected = [
+          @nested.at_css(".nested-parent"),
+        ]
+        assert_equal expected, result.to_a
+      end
+
+      def test_has_gt_b
+        result = @nested.css("body *:has(> em)")
+        expected = [
+          @nested.at_css(".unnested"),
+          @nested.at_css(".nested-child"),
+        ]
+        assert_equal expected, result.to_a
+      end
+
+      def test_has_a_plus_b
+        result = @nested.css("div:has(b + em)")
+        expected = [
+          @nested.at_css(".unnested"),
+          @nested.at_css(".nested-parent"),
+          @nested.at_css(".nested-child"),
+        ]
+        assert_equal expected, result.to_a
+      end
+
+      def test_has_plus_b
+        result = @nested.css("i:has(+ b)")
+        expected = [
+          @nested.css(".unnested i")[0],
+          @nested.css(".nested-parent i")[0],
+        ]
+        assert_equal expected, result.to_a
+
+        result = @nested.css("a:has(+ b)")
+        expected = [
+          @nested.at_css(".nerp a"),
+        ]
+        assert_equal expected, result.to_a
+      end
+
+      def test_has_a_tilde_b
+        result = @nested.css("div:has(b ~ p)")
+        expected = [
+          @nested.at_css(".unnested"),
+        ]
+        assert_equal expected, result.to_a
+
+        result = @nested.css("div:has(b ~ i)")
+        expected = [
+          @nested.at_css(".unnested"),
+          @nested.at_css(".nested-parent"),
+          @nested.at_css(".nested-child"),
+        ]
+        assert_equal expected, result.to_a
+
+        result = @nested.css("div:has(i ~ b)")
+        expected = [
+          @nested.at_css(".unnested"),
+          @nested.at_css(".nested-parent"),
+          @nested.at_css(".nested-child"),
+          @nested.at_css(".nerp"),
+        ]
+        assert_equal expected, result.to_a
+      end
+
+      def test_has_tilde_b
+        result = @nested.css("b:has(~ p)")
+        expected = [
+          @nested.css(".unnested b").to_a,
+        ].flatten
+        assert_equal expected, result.to_a
+
+        result = @nested.css("i:has(~ i)")
+        expected = [
+          @nested.css(".unnested i")[0],
+          @nested.css(".nested-child i")[0],
+        ]
+        assert_equal expected, result.to_a
+      end
+
+      private
+
       def assert_result_rows(intarray, result, word = "row")
         assert_equal intarray.size, result.size,
                      "unexpected number of rows returned: '#{result.inner_text}'"