local v=require(script.Parent.TestEnum)local E=require(script.Parent.TestSession)local n=require(script.Parent.LifecycleHooks)local f="\095\095\084\069\083\084\069\090\095\082\085\078\078\073\078\071\095\084\069\083\084\095\095"local g={environment={}}local function W(v)return setmetatable({extend=function(...)v:extend(...)end},{__call=function(E,...)return v:startExpectationChain(...)end})end function g.runPlan(f)local W=E.new(f)local q=n.new()local K=f:findNodes(function(E)return E.modifier==v.NodeModifier.Focus end)W.hasFocusNodes=#K>0 g.runPlanNode(W,f,q)return W:finalize()end function g.runPlanNode(E,n,q)local function K(v,n)local q=true local K _G[f]=true n=n or""local p=getfenv(v)for v,E in pairs(g.environment)do p[v]=E end p.fail=function(v)if v==nil then v="\102\097\105\108\040\041 \119\097\115 \099\097\108\108\101\100\046"end q=false K=n..debug.traceback(tostring(v),2)end p.expect=W(E:getExpectationContext())local i=E:getContext()local h,U=xpcall(function()v(i)end,function(v)return n..debug.traceback(tostring(v),2)end)if not h then q=false K=U end _G[f]=nil return q,K end local function p(v)for v,E in ipairs(q:getBeforeEachHooks())do local n,f=K(E,"\098\101\102\111\114\101\069\097\099\104 \104\111\111\107\058 ")if not n then return false,f end end local E,n=K(v.callback)for v,f in ipairs(q:getAfterEachHooks())do local g,W=K(f,"\097\102\116\101\114\069\097\099\104 \104\111\111\107\058 ")if not g then if not E then return false,n..("\n\087\104\105\108\101 \099\108\101\097\110\105\110\103 \117\112 \116\104\101 \102\097\105\108\101\100 \116\101\115\116 \097\110\111\116\104\101\114 \101\114\114\111\114 \119\097\115 \102\111\117\110\100\058\n"..W)end return false,W end end if not E then return false,n end return true,nil end q:pushHooksFrom(n)local i=false for v,n in ipairs(q:getBeforeAllHooks())do local f,g=K(n,"\098\101\102\111\114\101\065\108\108 \104\111\111\107\058 ")if not f then E:addDummyError("\098\101\102\111\114\101\065\108\108",g)i=true end end if not i then for n,f in ipairs(n.children)do if f.type==v.NodeType.It then E:pushNode(f)if E:shouldSkip()then E:setSkipped()else local v,n=p(f)if v then E:setSuccess()else E:setError(n)end end E:popNode()elseif f.type==v.NodeType.Describe then E:pushNode(f)g.runPlanNode(E,f,q)if f.loadError then local v="\069\114\114\111\114 \100\117\114\105\110\103 \112\108\097\110\110\105\110\103\058 "..f.loadError E:setError(v)else E:setStatusFromChildren()end E:popNode()end end end for v,n in ipairs(q:getAfterAllHooks())do local f,g=K(n,"\097\102\116\101\114\065\108\108 \104\111\111\107\058 ")if not f then E:addDummyError("\097\102\116\101\114\065\108\108",g)end end q:popHooks()end return g
--[[
	Contains the logic to run a test plan and gather test results from it.

	TestRunner accepts a TestPlan object, executes the planned tests, and
	produces a TestResults object. While the tests are running, the system's
	state is contained inside a TestSession object.
]]

local TestEnum = require(script.Parent.TestEnum)
local TestSession = require(script.Parent.TestSession)
local LifecycleHooks = require(script.Parent.LifecycleHooks)

local RUNNING_GLOBAL = "__TESTEZ_RUNNING_TEST__"

local TestRunner = {
	environment = {}
}

local function wrapExpectContextWithPublicApi(expectationContext)
	return setmetatable({
		extend = function(...)
			expectationContext:extend(...)
		end,
	}, {
		__call = function(_self, ...)
			return expectationContext:startExpectationChain(...)
		end,
	})
end

--[[
	Runs the given TestPlan and returns a TestResults object representing the
	results of the run.
]]
function TestRunner.runPlan(plan)
	local session = TestSession.new(plan)
	local lifecycleHooks = LifecycleHooks.new()

	local exclusiveNodes = plan:findNodes(function(node)
		return node.modifier == TestEnum.NodeModifier.Focus
	end)

	session.hasFocusNodes = #exclusiveNodes > 0

	TestRunner.runPlanNode(session, plan, lifecycleHooks)

	return session:finalize()
end

--[[
	Run the given test plan node and its descendants, using the given test
	session to store all of the results.
]]
function TestRunner.runPlanNode(session, planNode, lifecycleHooks)
	local function runCallback(callback, messagePrefix)
		local success = true
		local errorMessage
		-- Any code can check RUNNING_GLOBAL to fork behavior based on
		-- whether a test is running. We use this to avoid accessing
		-- protected APIs; it's a workaround that will go away someday.
		_G[RUNNING_GLOBAL] = true

		messagePrefix = messagePrefix or ""

		local testEnvironment = getfenv(callback)

		for key, value in pairs(TestRunner.environment) do
			testEnvironment[key] = value
		end

		testEnvironment.fail = function(message)
			if message == nil then
				message = "fail() was called."
			end

			success = false
			errorMessage = messagePrefix .. debug.traceback(tostring(message), 2)
		end

		testEnvironment.expect = wrapExpectContextWithPublicApi(session:getExpectationContext())

		local context = session:getContext()

		local nodeSuccess, nodeResult = xpcall(
			function()
				callback(context)
			end,
			function(message)
				return messagePrefix .. debug.traceback(tostring(message), 2)
			end
		)

		-- If a node threw an error, we prefer to use that message over
		-- one created by fail() if it was set.
		if not nodeSuccess then
			success = false
			errorMessage = nodeResult
		end

		_G[RUNNING_GLOBAL] = nil

		return success, errorMessage
	end

	local function runNode(childPlanNode)
		-- Errors can be set either via `error` propagating upwards or
		-- by a test calling fail([message]).

		for _, hook in ipairs(lifecycleHooks:getBeforeEachHooks()) do
			local success, errorMessage = runCallback(hook, "beforeEach hook: ")
			if not success then
				return false, errorMessage
			end
		end

		local testSuccess, testErrorMessage = runCallback(childPlanNode.callback)

		for _, hook in ipairs(lifecycleHooks:getAfterEachHooks()) do
			local success, errorMessage = runCallback(hook, "afterEach hook: ")
			if not success then
				if not testSuccess then
					return false, testErrorMessage .. "\nWhile cleaning up the failed test another error was found:\n" .. errorMessage
				end
				return false, errorMessage
			end
		end

		if not testSuccess then
			return false, testErrorMessage
		end

		return true, nil
	end

	lifecycleHooks:pushHooksFrom(planNode)

	local halt = false
	for _, hook in ipairs(lifecycleHooks:getBeforeAllHooks()) do
		local success, errorMessage = runCallback(hook, "beforeAll hook: ")
		if not success then
			session:addDummyError("beforeAll", errorMessage)
			halt = true
		end
	end

	if not halt then
		for _, childPlanNode in ipairs(planNode.children) do
			if childPlanNode.type == TestEnum.NodeType.It then
				session:pushNode(childPlanNode)
				if session:shouldSkip() then
					session:setSkipped()
				else
					local success, errorMessage = runNode(childPlanNode)

					if success then
						session:setSuccess()
					else
						session:setError(errorMessage)
					end
				end
				session:popNode()
			elseif childPlanNode.type == TestEnum.NodeType.Describe then
				session:pushNode(childPlanNode)
				TestRunner.runPlanNode(session, childPlanNode, lifecycleHooks)

				-- Did we have an error trying build a test plan?
				if childPlanNode.loadError then
					local message = "Error during planning: " .. childPlanNode.loadError
					session:setError(message)
				else
					session:setStatusFromChildren()
				end
				session:popNode()
			end
		end
	end

	for _, hook in ipairs(lifecycleHooks:getAfterAllHooks()) do
		local success, errorMessage = runCallback(hook, "afterAll hook: ")
		if not success then
			session:addDummyError("afterAll", errorMessage)
		end
	end

	lifecycleHooks:popHooks()
end

return TestRunner
