diff --git a/ARCtrl.sln b/ARCtrl.sln
index 7eabfae5..45406e5e 100644
--- a/ARCtrl.sln
+++ b/ARCtrl.sln
@@ -29,11 +29,10 @@ Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "tests", "tests", "{64B34A6E
 EndProject
 Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "JavaScript", "JavaScript", "{913222CA-261F-49CB-A823-CC7C335F964A}"
 	ProjectSection(SolutionItems) = preProject
-		tests\JavaScript\ARCtrl.Index.js = tests\JavaScript\ARCtrl.Index.js
-		tests\JavaScript\ISA.CompositeCell.js = tests\JavaScript\ISA.CompositeCell.js
-		tests\JavaScript\ISA.CompositeHeader.js = tests\JavaScript\ISA.CompositeHeader.js
-		tests\JavaScript\ISA.Person.js = tests\JavaScript\ISA.Person.js
+		tests\JavaScript\CompositeCell.js = tests\JavaScript\CompositeCell.js
+		tests\JavaScript\CompositeHeader.js = tests\JavaScript\CompositeHeader.js
 		tests\JavaScript\Main.js = tests\JavaScript\Main.js
+		tests\JavaScript\Person.js = tests\JavaScript\Person.js
 		tests\JavaScript\Template.Web.js = tests\JavaScript\Template.Web.js
 	EndProjectSection
 EndProject
diff --git a/build/TestTasks.fs b/build/TestTasks.fs
index 8ebc7921..a6e1a99c 100644
--- a/build/TestTasks.fs
+++ b/build/TestTasks.fs
@@ -33,20 +33,9 @@ module RunTests =
             run dotnet $"fable {path} -o {path}/js" ""
             // run mocha in target path to execute tests
             // "--timeout 20000" is used, because json schema validation takes a bit of time.
-            run npx $"mocha {path}/js --timeout 20000" ""
+            run node $"{path}/js/Main.js" ""
     }
 
-    /// <summary>
-    /// Until we reach full Py compatibility we use these paths to check only compatible projects
-    /// </summary>
-    let testProjectsPy = 
-        [
-            //"tests/ISA/ISA.Tests"
-            //"tests/ISA/ISA.Json.Tests"
-            //"tests/ISA/ISA.Spreadsheet.Tests"
-            "tests/ARCtrl"
-        ]
-
     let runTestsPy = BuildTask.create "runTestsPy" [clean; build] {
         for path in ProjectInfo.testProjects do
             //transpile py files from fsharp code
diff --git a/tests/JavaScript/ARCtrl.Index.js b/tests/JavaScript/ARCtrl.Index.js
deleted file mode 100644
index 3024aa8f..00000000
--- a/tests/JavaScript/ARCtrl.Index.js
+++ /dev/null
@@ -1,26 +0,0 @@
-import { equal, deepEqual } from 'assert';
-import { OntologyAnnotation, ArcAssay, ArcInvestigation, ArcTable, JsonController } from './ARCtrl/index.js'
-
-//import file './ARCtrl/index.js' is generated by FAKE never by NPM.
-describe('Auto Generated Index', function () {
-    it('OntologyAnnotation', function () {
-        let actual = OntologyAnnotation.create("My OA")
-        equal(actual.NameText, "My OA")
-    });
-    it('ArcAssay', function () {
-        let actual = new ArcAssay("My Assay", null, null, null, [ArcTable.init("MyTable")])
-        equal(actual.Identifier, "My Assay", "Id")
-        equal(actual.TableCount, 1, "TableCount")
-    });
-    it('ArcInvestigation', function () {
-        let actual = new ArcInvestigation("My Investigation", "Super Awesome Experiment")
-        equal(actual.Identifier, "My Investigation", "Id")
-        equal(actual.Title, "Super Awesome Experiment", "Title")
-    });
-    it('JsonController', function () {
-      let actual = new ArcInvestigation("My Investigation", "Super Awesome Experiment")
-      let json = JsonController.Investigation.toJsonString(0)(actual)
-      const expected = '{"Identifier":"My Investigation","Title":"Super Awesome Experiment"}'
-      equal(json, expected, "json conversion")
-    });
-});
\ No newline at end of file