2 files changed, 136 insertions, 0 deletions
diff --git a/tests/extensions/test-link-trailers.lua b/tests/extensions/test-link-trailers.lua
new file mode 100644
index 0000000..c879340
--- /dev/null
+++ b/tests/extensions/test-link-trailers.lua
@@ -0,0 +1,66 @@
+-- Unit checks for custom/extensions/link-trailers.lua, run under a standalone
+-- Lua by t0506-link-trailers.sh with the script path as the argument. The
+-- shipped configuration links Fixes and Reverts object names to ./?id=,
+-- Closes and Bug marks to bugs.example.com and a bare URL to itself, and
+-- everything here checks that shape, the key matching and the values that
+-- must pass through untouched.
+
+local test_directory = arg[0]:match("^(.*)/") or "."
+local h = dofile(test_directory .. "/harness.lua")
+
+h.load(arg[1])
+
+local function render(key, text)
+	return h.run({ key, "commit" }, { text })
+end
+
+local out, ret = render("Fixes", "1234567 (\"plain commit\")")
+h.contains("a Fixes object name links to its commit", out,
+	"<a href='./?id=1234567'>1234567</a> (\"plain commit\")")
+h.equals("close answers zero", ret, 0)
+
+out = render("fixes", "1234567")
+h.contains("the key matches case insensitively", out, "<a href='./?id=1234567'>1234567</a>")
+
+out = render("Fixes", "123456")
+h.excludes("six hex characters stay text", out, "<a")
+
+out = render("Reverts", "cafebabe")
+h.contains("a Reverts object name links too", out, "<a href='./?id=cafebabe'>cafebabe</a>")
+
+out = render("Closes", "#45")
+h.equals("a Closes mark links to the tracker", out,
+	"<a href='https://bugs.example.com/?bug=45'>#45</a>")
+
+out = render("Bug", "45")
+h.equals("a bare Bug number links to the tracker", out,
+	"<a href='https://bugs.example.com/?bug=45'>45</a>")
+
+out = render("Closes", "not a number")
+h.equals("a Closes value that is no number stays text", out, "not a number")
+
+out = render("Link", "https://example.com/?a=1&amp;b=2")
+h.equals("a bare URL links to itself with its escaping kept", out,
+	"<a href='https://example.com/?a=1&amp;b=2'>https://example.com/?a=1&amp;b=2</a>")
+
+out = render("Whatever", "https://example.com/x")
+h.contains("a URL links under any key", out, "<a href='https://example.com/x'>")
+
+out = render("Link", "https://example.com/it's")
+h.equals("a URL holding a quote stays text", out, "https://example.com/it's")
+
+out = render("Link", "see https://example.com/x")
+h.equals("a URL inside other text stays text", out, "see https://example.com/x")
+
+out = render("Reported-by", "someone")
+h.equals("a key with no rule passes through", out, "someone")
+
+out = h.run({ "Fixes", "commit" }, { "12345", "67 tail" })
+h.contains("a value split across writes is seen whole", out,
+	"<a href='./?id=1234567'>1234567</a> tail")
+
+out, ret = render("Fixes", "")
+h.equals("an empty value stays empty", out, "")
+h.equals("an empty value still answers zero", ret, 0)
+
+h.finish()
diff --git a/tests/t0506-link-trailers.sh b/tests/t0506-link-trailers.sh
new file mode 100755
index 0000000..d397309
--- /dev/null
+++ b/tests/t0506-link-trailers.sh
@@ -0,0 +1,70 @@
+#!/bin/sh
+
+# Checks link-trailers.lua, the shipped trailer-filter, whose configuration as
+# shipped links Fixes and Reverts object names to ./?id=, Closes and Bug marks
+# to bugs.example.com and a bare URL to itself. The unit checks cover the rules
+# under every suitable standalone Lua, and a commit carrying one of each is
+# then rendered through cgit itself.
+
+test_description='Check the shipped link-trailers 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' '$EXT_TEST_DIRECTORY/test-link-trailers.lua' '$EXTENSIONS_DIRECTORY/link-trailers.lua'
+	"
+done
+
+test "$CGIT_HAS_LUA" -eq 1 && test_set_prereq CGIT_LUA
+test "$CGIT_HAS_LUA" -eq 1 ||
+	say 'cgit built without lua, filter checks through cgit skipped'
+
+test_expect_success 'create a repository whose commit carries linkable trailers' '
+	test_create_repo repos/linky &&
+	(
+		cd repos/linky &&
+		echo content >file &&
+		git add file &&
+		git commit -F - <<-\EOF
+		fix it
+
+		Fixes: 1234567 ("earlier")
+		Link: https://example.com/?a=1&b=2
+		Closes: #45
+		EOF
+	)
+'
+
+test_expect_success 'point cgit at it through the trailer filter' '
+	cat >cgitrc <<-EOF
+	virtual-root=/
+	cache-size=0
+	enable-trailers=1
+	enable-filter-overrides=1
+	repo.url=linky
+	repo.path=$PWD/repos/linky/.git
+	repo.trailer-filter=lua:$EXTENSIONS_DIRECTORY/link-trailers.lua
+	EOF
+'
+
+test_expect_success CGIT_LUA 'the Fixes object name links to its commit page' '
+	cgit_url "linky/commit/" >tmp &&
+	grep "<th>Fixes</th><td><a href=....id=1234567.>1234567</a> (.earlier.)</td>" tmp
+'
+
+test_expect_success CGIT_LUA 'the bare URL links to itself' '
+	grep "<a href=.https://example.com/?a=1&amp;b=2.>https://example.com/?a=1&amp;b=2</a>" tmp
+'
+
+test_expect_success CGIT_LUA 'the Closes mark links out' '
+	grep "bugs.example.com/?bug=45.>#45</a>" tmp
+'
+
+test_done