spec/stanzacmp_spec.lua

local stanzacmp = require "scansion.stanzacmp";
local verse = require "verse";
local st = require "util.stanza";
local xml = require "scansion.xml";

local function parse(...)
	local n = select("#", ...);
	local out = {};
	for i = 1, n do
		local v = (select(i, ...));
		if type(v) == "string" then
			out[i] = xml.parse(v);
		else
			out[i] = v;
		end
	end
	return table.unpack(out, 1, n);
end

local function yes(s1, s2)
	s1, s2 = parse(s1, s2);
	if not stanzacmp.stanzas_match(s1, s2) then
		print("s1", s1)
		print("s2", s2)
		print("literal", tostring(s1) == tostring(s2));
		assert(false, "No match, but they should.");
	end
end

local function no(s1, s2)
	s1, s2 = parse(s1, s2);
	if stanzacmp.stanzas_match(s1, s2) then
		print("s1", s1)
		print("s2", s2)
		assert(false, "Match, but they should not.");
	end
end

describe("stanzacmp", function ()
	it("should work", function ()
		local s1 = st.message({ to = "foo", from = "bar"});
		local s2 = st.message({ to = "foo", from = "bar"});
		
		yes(s1, s2);
		yes(s2, s1);
		
		s1.attr.to = nil;
		
		yes(s1, s2);
		no(s2, s1);
		
		s1.attr.to = "foo";
		yes(s1, s2);
		
		s2:tag("blah", { xmlns = "foobar" });
		
		yes(s1, s2);
		no(s2, s1);
		
		s1:tag("blah", { xmlns = "foobar" });
		yes(s1, s2);
		yes(s2, s1);
		
		s1:tag("a");
		no(s1, s2);
		s2:tag("a");
		yes(s1, s2);
		s2:up():up();
		s2:tag("extension", { xmlns = "blah" });
		yes(s1, s2);
		s2:tag("b");
		yes(s1, s2);
		s1:up():up();
		s1:tag("extension", { xmlns = "blah" });
		no(s1, s2);
		s1:tag("b");
		yes(s1, s2);
		s1:tag("c", { n = "1" });
		no(s1, s2);
	end);
	it("should allow matching any attribute value with {scansion:any}", function ()
		--[[
		<message from="user@localhost/71652fc8-93cb-40c7-8220-47ce80cc417b" type="chat">
  		<body>Hello Juliet, are you there?</body>
  		<delay xmlns="urn:xmpp:delay" from="localhost"/>
		</message>
		]]
		
		local s01 = st.message({ from = "user@localhost/71652fc8-93cb-40c7-8220-47ce80cc417b", type = "chat" })
			:tag("body"):text("Hello Juliet, are you there?"):up()
			:tag("delay", { xmlns = "urn:xmpp:delay", from = "localhost", stamp = "{scansion:any}" }):up();
		
		--[[
		<message to="juliet@localhost" type="chat" from="user@localhost/71652fc8-93cb-40c7-8220-47ce80cc417b">
  		<body>Hello Juliet, are you there?</body>
  		<stanza-id xmlns="urn:xmpp:sid:0" by="user@localhost" id="eb9eaf13-384e-47d1-a6c0-303ef4f1ac70"/>
  		<stanza-id xmlns="urn:xmpp:sid:0" by="juliet@localhost" id="f6c6f61d-0b15-46d6-9f69-bca1640401d1"/>
  		<delay xmlns="urn:xmpp:delay" stamp="2017-05-07T09:46:21Z" from="localhost"/>
		</message>
		]]
		
		local s02 = st.message({ to = "juliet@localhost", from = "user@localhost/71652fc8-93cb-40c7-8220-47ce80cc417b", type = "chat" })
			:tag("body"):text("Hello Juliet, are you there?"):up()
			:tag("stanza-id", { xmlns = "urn:xmpp:sid:0", by = "user@localhost", id = "eb9eaf13-384e-47d1-a6c0-303ef4f1ac70" }):up()
			:tag("stanza-id", { xmlns = "urn:xmpp:sid:0", by = "juliet@localhost", id = "f6c6f61d-0b15-46d6-9f69-bca1640401d1" }):up()
			:tag("delay", { xmlns = "urn:xmpp:delay", stamp = "2017-05-07T09:46:21Z", from = "localhost" }):up();
		
		
		
		yes(s01, s02);
	end);

	it("should match unordered children at the top level", function ()
		yes("<foo><one/><two/></foo>", "<foo><two/><one/></foo>");
	end);

	it("should not match unordered children", function ()
		no("<foo><one><a/><b/></one></foo>", "<foo><one><b/><a/></one></foo>");
	end);

	it("should be possible to disable ordered matching", function ()
		yes("<foo><one scansion:strict='no'><a/><b/></one></foo>", "<foo><one><b/><a/></one></foo>");
	end);
end);