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-rw-r--r--spec/util_async_spec.lua315
1 files changed, 315 insertions, 0 deletions
diff --git a/spec/util_async_spec.lua b/spec/util_async_spec.lua
new file mode 100644
index 00000000..9681673f
--- /dev/null
+++ b/spec/util_async_spec.lua
@@ -0,0 +1,315 @@
+local async = require "util.async";
+
+describe("util.async", function()
+ local debug = false;
+ local print = print;
+ if debug then
+ require "util.logger".add_simple_sink(print);
+ else
+ print = function () end
+ end
+ local function new(func, name)
+ local log = {};
+ return async.runner(func, setmetatable({}, {
+ __index = function (_, event)
+ return function (runner, err)
+ print(name, "event", event, err)
+ print "--"
+ table.insert(log, { event = event, err = err });
+ end;
+ end;
+ })), log;
+ end
+ describe("#runner", function()
+ it("should work", function()
+ local r, l = new(function (item) assert(type(item) == "number") end);
+ r:run(1);
+ r:run(2);
+ end);
+ end);
+ describe("#waiter", function()
+ it("should work", function ()
+ local wait, done;
+
+ local r, l = new(function (item)
+ assert(type(item) == "number")
+ if item == 3 then
+ wait, done = async.waiter();
+ wait();
+ end
+ end);
+
+ r:run(1);
+ assert(r.state == "ready");
+ r:run(2);
+ assert(r.state == "ready");
+ r:run(3);
+ assert(r.state == "waiting");
+ done();
+ assert(r.state == "ready");
+ --for k, v in ipairs(l) do print(k,v) end
+ end);
+
+ it("should work", function ()
+ --------------------
+ local wait, done;
+ local last_item = 0;
+ local r, l = new(function (item)
+ assert(type(item) == "number")
+ assert(item == last_item + 1);
+ last_item = item;
+ if item == 3 then
+ wait, done = async.waiter();
+ wait();
+ end
+ end);
+
+ r:run(1);
+ assert(r.state == "ready");
+ r:run(2);
+ assert(r.state == "ready");
+ r:run(3);
+ assert(r.state == "waiting");
+ r:run(4);
+ assert(r.state == "waiting");
+ done();
+ assert(r.state == "ready");
+ --for k, v in ipairs(l) do print(k,v) end
+ end);
+ it("should work", function ()
+ --------------------
+ local wait, done;
+ local last_item = 0;
+ local r, l = new(function (item)
+ assert(type(item) == "number")
+ assert((item == last_item + 1) or item == 3);
+ last_item = item;
+ if item == 3 then
+ wait, done = async.waiter();
+ wait();
+ end
+ end);
+
+ r:run(1);
+ assert(r.state == "ready");
+ r:run(2);
+ assert(r.state == "ready");
+
+ local dones = {};
+ r:run(3);
+ assert(r.state == "waiting");
+ r:run(3);
+ assert(r.state == "waiting");
+ r:run(3);
+ assert(r.state == "waiting");
+ r:run(4);
+ assert(r.state == "waiting");
+
+ for i = 1, 3 do
+ done();
+ if i < 3 then
+ assert(r.state == "waiting");
+ end
+ end
+
+ assert(r.state == "ready");
+ --for k, v in ipairs(l) do print(k,v) end
+ end);
+ it("should work", function ()
+ --------------------
+ local wait, done;
+ local last_item = 0;
+ local r, l = new(function (item)
+ assert(type(item) == "number")
+ assert((item == last_item + 1) or item == 3);
+ last_item = item;
+ if item == 3 then
+ wait, done = async.waiter();
+ wait();
+ end
+ end);
+
+ r:run(1);
+ assert(r.state == "ready");
+ r:run(2);
+ assert(r.state == "ready");
+
+ local dones = {};
+ r:run(3);
+ assert(r.state == "waiting");
+ r:run(3);
+ assert(r.state == "waiting");
+
+ for i = 1, 2 do
+ done();
+ if i < 2 then
+ assert(r.state == "waiting");
+ end
+ end
+
+ assert(r.state == "ready");
+ r:run(4);
+ assert(r.state == "ready");
+
+ assert(r.state == "ready");
+ --for k, v in ipairs(l) do print(k,v) end
+ end);
+ it("should work with multiple runners in parallel", function ()
+ -- Now with multiple runners
+ --------------------
+ local wait1, done1;
+ local last_item1 = 0;
+ local r1, l1 = new(function (item)
+ assert(type(item) == "number")
+ assert((item == last_item1 + 1) or item == 3);
+ last_item1 = item;
+ if item == 3 then
+ wait1, done1 = async.waiter();
+ wait1();
+ end
+ end, "r1");
+
+ local wait2, done2;
+ local last_item2 = 0;
+ local r2, l2 = new(function (item)
+ assert(type(item) == "number")
+ assert((item == last_item2 + 1) or item == 3);
+ last_item2 = item;
+ if item == 3 then
+ wait2, done2 = async.waiter();
+ wait2();
+ end
+ end, "r2");
+
+ r1:run(1);
+ assert(r1.state == "ready");
+ r1:run(2);
+ assert(r1.state == "ready");
+
+ local dones = {};
+ r1:run(3);
+ assert(r1.state == "waiting");
+ r1:run(3);
+ assert(r1.state == "waiting");
+
+ r2:run(1);
+ assert(r1.state == "waiting");
+ assert(r2.state == "ready");
+
+ r2:run(2);
+ assert(r1.state == "waiting");
+ assert(r2.state == "ready");
+
+ r2:run(3);
+ assert(r1.state == "waiting");
+ assert(r2.state == "waiting");
+ done2();
+
+ r2:run(3);
+ assert(r1.state == "waiting");
+ assert(r2.state == "waiting");
+ done2();
+
+ r2:run(4);
+ assert(r1.state == "waiting");
+ assert(r2.state == "ready");
+
+ for i = 1, 2 do
+ done1();
+ if i < 2 then
+ assert(r1.state == "waiting");
+ end
+ end
+
+ assert(r1.state == "ready");
+ r1:run(4);
+ assert(r1.state == "ready");
+
+ assert(r1.state == "ready");
+ --for k, v in ipairs(l1) do print(k,v) end
+ end);
+ it("should work work with multiple runners in parallel", function ()
+ --------------------
+ local wait1, done1;
+ local last_item1 = 0;
+ local r1, l1 = new(function (item)
+ print("r1 processing ", item);
+ assert(type(item) == "number")
+ assert((item == last_item1 + 1) or item == 3);
+ last_item1 = item;
+ if item == 3 then
+ wait1, done1 = async.waiter();
+ wait1();
+ end
+ end, "r1");
+
+ local wait2, done2;
+ local last_item2 = 0;
+ local r2, l2 = new(function (item)
+ print("r2 processing ", item);
+ assert.is_number(item);
+ assert((item == last_item2 + 1) or item == 3);
+ last_item2 = item;
+ if item == 3 then
+ wait2, done2 = async.waiter();
+ wait2();
+ end
+ end, "r2");
+
+ r1:run(1);
+ assert.equal(r1.state, "ready");
+ r1:run(2);
+ assert.equal(r1.state, "ready");
+
+ r1:run(5);
+ assert.equal(r1.state, "ready");
+
+ local dones = {};
+ r1:run(3);
+ assert.equal(r1.state, "waiting");
+ r1:run(5); -- Will error, when we get to it
+ assert.equal(r1.state, "waiting");
+ done1();
+ assert.equal(r1.state, "ready");
+ r1:run(3);
+ assert.equal(r1.state, "waiting");
+
+ r2:run(1);
+ assert.equal(r1.state, "waiting");
+ assert.equal(r2.state, "ready");
+
+ r2:run(2);
+ assert.equal(r1.state, "waiting");
+ assert.equal(r2.state, "ready");
+
+ r2:run(3);
+ assert.equal(r1.state, "waiting");
+ assert.equal(r2.state, "waiting");
+
+ done2();
+ assert.equal(r1.state, "waiting");
+ assert.equal(r2.state, "ready");
+
+ r2:run(3);
+ assert.equal(r1.state, "waiting");
+ assert.equal(r2.state, "waiting");
+
+ done2();
+ assert.equal(r1.state, "waiting");
+ assert.equal(r2.state, "ready");
+
+ r2:run(4);
+ assert.equal(r1.state, "waiting");
+ assert.equal(r2.state, "ready");
+
+ done1();
+
+ assert.equal(r1.state, "ready");
+ r1:run(4);
+ assert.equal(r1.state, "ready");
+
+ assert.equal(r1.state, "ready");
+ --for k, v in ipairs(l1) do print(k,v) end
+ end);
+ end);
+end);
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