Run an extra test on headless checking for errors at infolog.txt.

common/testing/infologtest.lua

@@ -0,0 +1,34 @@
+-- 'hidden' test checking infolog.txt for errors, used by headless runs.
+
+local maxErrors = 10
+
+local function skipErrors(line)
+	if string.find(line, 'Could not finalize projectile-texture atlas', nil, true) then
+		return true
+	end
+end
+
+local function infologTest()
+	local errors = {}
+	local infolog = VFS.LoadFile("infolog.txt")
+	if infolog then
+		local fileLines = string.lines(infolog)
+		for i, line in ipairs(fileLines) do
+			if string.find(line, 'Error:', nil, true) and not skipErrors(line) then
+				errors[#errors+1] = line
+				if #errors > maxErrors then
+					return errors
+				end
+			end
+		end
+	end
+	return errors
+end
+
+
+function test()
+	local errors = infologTest()
+	if #errors > 0 then
+		error(table.concat(errors, "\n"), 0)
+	end
+end

luaui/Widgets/dbg_test_runner.lua

@@ -41,6 +41,7 @@ local config = {
 }
 
 local testReporter = nil
+local headless = false
 
 -- utils
 -- =====
@@ -71,6 +72,7 @@ local function logEndTests(duration)
 	testReporter:endTests(duration)
 
 	testReporter:report(config.testResultsFilePath)
+	headless = false
 end
 
 local function logTestResult(testResult)
@@ -142,6 +144,9 @@ local function findAllTestFiles(patterns)
 			result[#result + 1] = testFileInfo
 		end
 	end
+	if headless then
+		result[#result+1] = {label="infolog", filename="common/testing/infologtest.lua"}
+	end
 	return result
 end
 
@@ -1258,6 +1263,7 @@ function widget:Initialize()
 		self,
 		"runtestsheadless",
 		function(cmd, optLine, optWords, data, isRepeat, release, actions)
+			headless = true
 			config.noColorOutput = true
 			config.quitWhenDone = true
 			config.gameStartTestPatterns = Util.splitPhrases(optLine)