Add and fix tests

test/lib/data/ModPack.js

@@ -378,5 +378,32 @@ describe("lib/data/ModPack", function() {
 				/* eslint-enable indent */
 			});
 		});
+		describe("getBuiltinMods()", function() {
+			it("should work with versions before 2.0", function() {
+				const builtinMods = ModPack.getBuiltinMods("1.1");
+				assert.deepEqual(builtinMods, [
+					{ name: "base", enabled: true, version: "1.1" },
+				]);
+			});
+			it("should work with versions after 2.0", function() {
+				const builtinMods = ModPack.getBuiltinMods("2.0");
+				assert.deepEqual(builtinMods, [
+					{ name: "base", enabled: true, version: "2.0" },
+					{ name: "elevated-rails", enabled: false, version: "2.0" },
+					{ name: "quality", enabled: false, version: "2.0" },
+					{ name: "space-age", enabled: false, version: "2.0" },
+				]);
+			});
+		});
+		describe("getBuiltinModNames()", function() {
+			it("should work with versions before 2.0", function() {
+				const builtinModNames = ModPack.getBuiltinModNames("1.1");
+				assert.deepEqual(builtinModNames, ["base"]);
+			});
+			it("should work with versions after 2.0", function() {
+				const builtinModNames = ModPack.getBuiltinModNames("2.0");
+				assert.deepEqual(builtinModNames, ["base", "elevated-rails", "quality", "space-age"]);
+			});
+		});
 	});
 });