Diff

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/spec/util_error_spec.lua	Wed Sep 30 09:50:33 2020 +0100
@@ -0,0 +1,146 @@
+local errors = require "util.error"
+
+describe("util.error", function ()
+	describe("new()", function ()
+		it("works", function ()
+			local err = errors.new("bork", "bork bork");
+			assert.not_nil(err);
+			assert.equal("cancel", err.type);
+			assert.equal("undefined-condition", err.condition);
+			assert.same("bork bork", err.context);
+		end);
+
+		describe("templates", function ()
+			it("works", function ()
+				local templates = {
+					["fail"] = {
+						type = "wait",
+						condition = "internal-server-error",
+						code = 555;
+					};
+				};
+				local err = errors.new("fail", { traceback = "in some file, somewhere" }, templates);
+				assert.equal("wait", err.type);
+				assert.equal("internal-server-error", err.condition);
+				assert.equal(555, err.code);
+				assert.same({ traceback = "in some file, somewhere" }, err.context);
+			end);
+		end);
+
+	end);
+
+	describe("is_err()", function ()
+		it("works", function ()
+			assert.truthy(errors.is_err(errors.new()));
+			assert.falsy(errors.is_err("not an error"));
+		end);
+	end);
+
+	describe("coerce", function ()
+		it("works", function ()
+			local ok, err = errors.coerce(nil, "it dun goofed");
+			assert.is_nil(ok);
+			assert.truthy(errors.is_err(err))
+		end);
+	end);
+
+	describe("from_stanza", function ()
+		it("works", function ()
+			local st = require "util.stanza";
+			local m = st.message({ type = "chat" });
+			local e = st.error_reply(m, "modify", "bad-request", nil, "error.example"):tag("extra", { xmlns = "xmpp:example.test" });
+			local err = errors.from_stanza(e);
+			assert.truthy(errors.is_err(err));
+			assert.equal("modify", err.type);
+			assert.equal("bad-request", err.condition);
+			assert.equal(e, err.context.stanza);
+			assert.equal("error.example", err.context.by);
+			assert.not_nil(err.extra.tag);
+		end);
+	end);
+
+	describe("__tostring", function ()
+		it("doesn't throw", function ()
+			assert.has_no.errors(function ()
+				-- See 6f317e51544d
+				tostring(errors.new());
+			end);
+		end);
+	end);
+
+	describe("extra", function ()
+		it("keeps some extra fields", function ()
+			local err = errors.new({condition="gone",text="Sorry mate, it's all gone",extra={uri="file:///dev/null"}});
+			assert.is_table(err.extra);
+			assert.equal("file:///dev/null", err.extra.uri);
+		end);
+	end)
+
+	describe("init", function()
+		it("basics works", function()
+			local reg = errors.init("test", {
+				broke = {type = "cancel"; condition = "internal-server-error"; text = "It broke :("};
+				nope = {type = "auth"; condition = "not-authorized"; text = "Can't let you do that Dave"};
+			});
+
+			local broke = reg.new("broke");
+			assert.equal("cancel", broke.type);
+			assert.equal("internal-server-error", broke.condition);
+			assert.equal("It broke :(", broke.text);
+			assert.equal("test", broke.source);
+
+			local nope = reg.new("nope");
+			assert.equal("auth", nope.type);
+			assert.equal("not-authorized", nope.condition);
+			assert.equal("Can't let you do that Dave", nope.text);
+		end);
+
+		it("compact mode works", function()
+			local reg = errors.init("test", "spec", {
+				broke = {"cancel"; "internal-server-error"; "It broke :("};
+				nope = {"auth"; "not-authorized"; "Can't let you do that Dave"; "sorry-dave"};
+			});
+
+			local broke = reg.new("broke");
+			assert.equal("cancel", broke.type);
+			assert.equal("internal-server-error", broke.condition);
+			assert.equal("It broke :(", broke.text);
+			assert.is_nil(broke.extra);
+
+			local nope = reg.new("nope");
+			assert.equal("auth", nope.type);
+			assert.equal("not-authorized", nope.condition);
+			assert.equal("Can't let you do that Dave", nope.text);
+			assert.equal("spec", nope.extra.namespace);
+			assert.equal("sorry-dave", nope.extra.condition);
+		end);
+
+		it("registry looks the same regardless of syntax", function()
+			local normal = errors.init("test", {
+				broke = {type = "cancel"; condition = "internal-server-error"; text = "It broke :("};
+				nope = {
+					type = "auth";
+					condition = "not-authorized";
+					text = "Can't let you do that Dave";
+					extra = {namespace = "spec"; condition = "sorry-dave"};
+				};
+			});
+			local compact1 = errors.init("test", "spec", {
+				broke = {"cancel"; "internal-server-error"; "It broke :("};
+				nope = {"auth"; "not-authorized"; "Can't let you do that Dave"; "sorry-dave"};
+			});
+			local compact2 = errors.init("test", {
+				broke = {"cancel"; "internal-server-error"; "It broke :("};
+				nope = {"auth"; "not-authorized"; "Can't let you do that Dave"};
+			});
+			assert.same(normal.registry, compact1.registry);
+
+			assert.same({
+				broke = {type = "cancel"; condition = "internal-server-error"; text = "It broke :("};
+				nope = {type = "auth"; condition = "not-authorized"; text = "Can't let you do that Dave"};
+			}, compact2.registry);
+		end);
+	end);
+
+end);
+