Add a test suite for the shipped extensions

1 file changed, 90 insertions, 0 deletions

diff --git a/tests/t0501-about-render.sh b/tests/t0501-about-render.sh
new file mode 100755
index 0000000..eff2a61
--- /dev/null
+++ b/tests/t0501-about-render.sh
@@ -0,0 +1,90 @@
+#!/bin/sh
+
+# Checks about-render.lua, the shipped about-filter. The unit checks drive
+# the script under every suitable standalone Lua through the harness in
+# extensions/, once as installed and once with lpeg forced away so the
+# plain text fallback is proven everywhere. A repository with a markdown
+# readme is then rendered through cgit itself, where the outcome depends on
+# whether the Lua inside the binary has lpeg, so a probe decides which of
+# the two right answers to expect.
+
+test_description='Check the shipped about-render extension'
+CGIT_TEST_NO_CREATE_REPOS=YesPlease
+. ./setup.sh
+. "$TEST_OUTPUT_DIRECTORY/extensions/lib.sh"
+
+interpreters=$(ext_lua_interpreters 4)
+test -z "$interpreters" &&
+	say 'no standalone lua on the path, unit checks skipped'
+
+for lua in $interpreters
+do
+	test_expect_success "unit checks under $lua" "
+		'$lua' '$EXT_TEST_DIRECTORY/test-about-render.lua' \
+			'$EXTENSIONS_DIRECTORY/about-render.lua'
+	"
+
+	test_expect_success "fallback checks without lpeg under $lua" "
+		'$lua' '$EXT_TEST_DIRECTORY/test-about-render.lua' \
+			'$EXTENSIONS_DIRECTORY/about-render.lua' nolpeg
+	"
+done
+
+test_expect_success 'create a repository with a markdown readme' '
+	test_create_repo repos/md &&
+	(
+		cd repos/md &&
+		cat >README.md <<-\EOF &&
+		# The Title
+
+		A **bold** claim and a <script>alert(1)</script> attempt.
+		EOF
+		git add README.md &&
+		git commit -m "add readme"
+	)
+'
+
+test_expect_success 'point cgit at it through the about filter' '
+	cat >cgitrc <<-EOF
+	virtual-root=/
+	cache-size=0
+	enable-filter-overrides=1
+	repo.url=md
+	repo.path=$PWD/repos/md/.git
+	repo.readme=master:README.md
+	repo.about-filter=lua:$EXTENSIONS_DIRECTORY/about-render.lua
+	EOF
+'
+
+if test "$CGIT_HAS_LUA" -eq 1
+then
+	if cgit_lua_probe "$PWD/repos/md/.git" lpeg
+	then
+		test_set_prereq CGIT_LUA_LPEG
+	else
+		test_set_prereq CGIT_LUA_NOLPEG
+		say 'cgit lua has no lpeg, expecting the plain text fallback'
+	fi
+else
+	say 'cgit built without lua, filter checks through cgit skipped'
+fi
+
+test_expect_success CGIT_LUA_LPEG 'the about page renders the markdown' '
+	cgit_url "md/about/" >tmp &&
+	grep "<h1>The Title</h1>" tmp &&
+	grep "<strong>bold</strong>" tmp
+'
+
+test_expect_success CGIT_LUA_LPEG 'readme markup reaches the page escaped' '
+	cgit_url "md/about/" >tmp &&
+	grep "&lt;script&gt;alert(1)&lt;/script&gt;" tmp &&
+	! grep "<script>alert(1)" tmp
+'
+
+test_expect_success CGIT_LUA_NOLPEG 'without lpeg the readme is served escaped' '
+	cgit_url "md/about/" >tmp &&
+	grep "<pre class=.plaintext.>" tmp &&
+	grep "# The Title" tmp
+'
+
+test_done