Index: ps/trunk/binaries/data/mods/public/simulation/components/tests/test_StatisticsTracker.js
===================================================================
--- ps/trunk/binaries/data/mods/public/simulation/components/tests/test_StatisticsTracker.js	(nonexistent)
+++ ps/trunk/binaries/data/mods/public/simulation/components/tests/test_StatisticsTracker.js	(revision 21250)
@@ -0,0 +1,36 @@
+Engine.LoadComponentScript("StatisticsTracker.js");
+Engine.LoadComponentScript("interfaces/StatisticsTracker.js");
+Engine.LoadComponentScript("interfaces/Timer.js");
+
+AddMock(SYSTEM_ENTITY, IID_Timer, {
+	"SetInterval": () => true
+});
+
+Resources = {
+	"GetCodes": () => ["food", "metal", "stone", "wood"]
+};
+
+let cmpStatisticsTracker = ConstructComponent(SYSTEM_ENTITY, "StatisticsTracker");
+let obj1 = {
+	"successfulBribes": 3,
+	"unitsTrained": {
+		"Infantry": 5,
+		"Worker": 7
+	}
+};
+let obj2 = {
+	"successfulBribes": [11, 13, 17],
+	"unitsTrained": {
+		"Infantry": [19, 23],
+		"Worker": 29
+	}
+};
+
+cmpStatisticsTracker.PushValue(obj1, obj2);
+TS_ASSERT_UNEVAL_EQUALS(obj2, {
+	"successfulBribes": [11, 13, 17, 3],
+	"unitsTrained": {
+		"Infantry": [19, 23, 5],
+		"Worker": [7]
+	}
+});