Add unit tests

scripts/data/morrowind_tests/global.lua

@@ -24,6 +24,7 @@ end
 local testModules = {
     'global_issues',
     'global_dialogues',
+    'global_mwscript',
 }
 
 return {

scripts/data/morrowind_tests/global_mwscript.lua

@@ -0,0 +1,38 @@
+local testing = require('testing_util')
+local core = require('openmw.core')
+local world = require('openmw.world')
+
+function iterateOverVariables(variables)
+    local first = nil
+    local last = nil
+    local count = 0
+    for k, _ in pairs(variables) do
+        first = first or k
+        last = k
+        count = count + 1
+    end
+    return first, last, count
+end
+
+return {
+    {'Should support iteration over script variables', function()
+        local mainVars = world.mwscript.getGlobalScript('main').variables
+        local first, last, count = iterateOverVariables(mainVars)
+        testing.expectEqual(first, nil)
+        testing.expectEqual(last, nil)
+        testing.expectEqual(count, 0)
+        testing.expectEqual(count, #mainVars)
+
+        local jiub = world.getObjectByFormId(core.getFormId('Morrowind.esm', 172867))
+        local jiubVars = world.mwscript.getLocalScript(jiub).variables
+        first, last, count = iterateOverVariables(jiubVars)
+        print(first, last, count)
+        testing.expectEqual(first, 'state')
+        testing.expectEqual(last, 'timer')
+        testing.expectEqual(count, 3)
+        testing.expectEqual(count, #jiubVars)
+        testing.expectEqual(jiubVars[1], jiubVars.state)
+        testing.expectEqual(jiubVars[2], jiubVars.wandering)
+        testing.expectEqual(jiubVars[3], jiubVars.timer)
+    end},
+}