[clangd] Render header of hover card as a heading

Reviewers: sammccall

Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, usaxena95, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D72625

1 files changed, 9 insertions, 0 deletions

diff --git a/clang-tools-extra/clangd/unittests/FormattedStringTests.cpp b/clang-tools-extra/clangd/unittests/FormattedStringTests.cpp
index 80d0934bed3..0a85a4cb27d 100644
--- a/clang-tools-extra/clangd/unittests/FormattedStringTests.cpp
+++ b/clang-tools-extra/clangd/unittests/FormattedStringTests.cpp
@@ -145,6 +145,15 @@ TEST(Document, Spacer) {
   EXPECT_EQ(D.asPlainText(), "foo\n\nbar");
 }
 
+TEST(Document, Heading) {
+  Document D;
+  D.addHeading(1).appendText("foo");
+  D.addHeading(2).appendText("bar");
+  D.addParagraph().appendText("baz");
+  EXPECT_EQ(D.asMarkdown(), "# foo  \n## bar  \nbaz");
+  EXPECT_EQ(D.asPlainText(), "foo\nbar\nbaz");
+}
+
 TEST(CodeBlock, Render) {
   Document D;
   // Code blocks preserves any extra spaces.