tests: add multi-match test in direct mode

This reveals that it's relatively useless, as we really should have some way
to inspect the buffer at a minimum.  Need to think about it.

Signed-off-by: Kyle Evans <[email protected]>

tests/test_multimatch.lua

@@ -0,0 +1,28 @@
+local ltest = require('./libtest')
+local porch = require('porch')
+
+local cat = assert(porch.spawn("cat"))
+cat.timeout = 3
+
+assert(cat:write("PANIC: foo\r"))
+assert(cat:write("login: \r"))
+
+local panic_match, login_match
+
+cat:match({
+	["PANIC:.+"] = {
+		callback = function()
+			panic_match = true
+		end,
+	},
+	["login:"] = {
+		callback = function()
+			login_match = true
+		end,
+	},
+})
+
+assert(panic_match, "Panic should have been found first")
+assert(not login_match, "No matches should have happened after panic")
+
+assert(cat:close())