From aac81630c81f7bef8920ce4681033f481c62a64c Mon Sep 17 00:00:00 2001
From: Bryce Kwon <bryce@brycekwon.com>
Date: Sat, 7 Nov 2026 10:53:54 -1000
Subject: Cover the rest of syntax-highlight's output

No token ever took hl-type or hl-comment, so a typo in either row, or a
rule gone from the stylesheet, passed. Nothing fed the filter a NUL
byte or a blob of exactly the size cap either.
---
 tests/extensions/test-syntax-highlight.lua | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

(limited to 'tests/extensions/test-syntax-highlight.lua')

diff --git a/tests/extensions/test-syntax-highlight.lua b/tests/extensions/test-syntax-highlight.lua
index 90ef5b9..c6c7b47 100644
--- a/tests/extensions/test-syntax-highlight.lua
+++ b/tests/extensions/test-syntax-highlight.lua
@@ -32,6 +32,9 @@ if mode == "nolexers" then
 	h.equals("the fallback escapes markup", out, "a &lt;b&gt; &amp; c")
 	h.equals("and the error log hears of it only once", h.error_log(), "")
 
+	out = render("hello.fake", "a\0b")
+	h.equals("a nul byte cuts the escaped blob short", out, "a")
+
 	-- Large output leaves in slices, and a byte lost at a boundary would
 	-- put the line numbers beside it out of step, so the whole escaped
 	-- blob has to come back intact across several slices.
@@ -121,6 +124,10 @@ h.equals("close answers zero", ret, 0)
 out = render("hello.fake", "'<b>&'")
 h.equals("markup inside a token is escaped", out, "<span class='hl-string'>'&lt;b&gt;&amp;'</span>")
 
+out = render("hello.fake", "-- note\nString x")
+h.equals("comments and types take their classes", out,
+	"<span class='hl-comment'>-- note</span>\n<span class='hl-type'>String</span> <span class='hl-keyword'>x</span>")
+
 out = render("hello.fake", "$color :hover")
 h.contains("a css property takes the number class", out, "<span class='hl-number'>$color</span>")
 h.contains("a css pseudo-class takes the function class", out, "<span class='hl-func'>:hover</span>")
@@ -175,6 +182,14 @@ out = render("big.fake", string.rep("a", 512 * 1024 + 1))
 h.excludes("an oversized blob skips the lexing pass", out, "<span")
 h.equals("and still arrives whole", #out, 512 * 1024 + 1)
 
+out = render("big.fake", string.rep("a", 512 * 1024))
+h.equals("a blob of exactly the cap is still lexed", out:sub(1, 26), "<span class='hl-keyword'>a")
+
+-- cgit's sink stops at the first NUL byte, as the harness does, so a blob
+-- holding one loses everything from there on.
+out = render("hello.fake", "a\0b")
+h.equals("a nul byte cuts the highlighted blob short", out, "<span class='hl-keyword'>a</span>")
+
 out, ret = render("empty.fake", "")
 h.equals("an empty blob renders empty", out, "")
 h.equals("an empty blob still answers zero", ret, 0)
-- 
cgit 2.12.1