First steps to a real testing framework: first working version with mocha, chai and doctest-ts

testLegacy/CreateNoteImportLayer.spec.ts

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+import T from "./TestHelper";
+import CreateNoteImportLayer from "../Models/ThemeConfig/Conversion/CreateNoteImportLayer";
+import * as bookcases from "../assets/layers/public_bookcase/public_bookcase.json"
+import {DesugaringContext} from "../Models/ThemeConfig/Conversion/Conversion";
+import {LayerConfigJson} from "../Models/ThemeConfig/Json/LayerConfigJson";
+import {TagRenderingConfigJson} from "../Models/ThemeConfig/Json/TagRenderingConfigJson";
+import {PrepareLayer} from "../Models/ThemeConfig/Conversion/PrepareLayer";
+import {Utils} from "../Utils";
+
+export default class CreateNoteImportLayerSpec extends T {
+
+    constructor() {
+        super([
+            ["Bookcase", () => {
+                const desugaringState: DesugaringContext = {
+                    sharedLayers: new Map<string, LayerConfigJson>(),
+                    tagRenderings: new Map<string, TagRenderingConfigJson>()
+
+                }
+                const layerPrepare = new PrepareLayer(desugaringState)
+                const layer = layerPrepare.convertStrict(bookcases, "ImportLayerGeneratorTest:Parse bookcases")
+                const generator = new CreateNoteImportLayer()
+                const generatedLayer: LayerConfigJson = generator.convertStrict(layer, "ImportLayerGeneratorTest: convert")
+                T.equals("_tags~(^|.*;)amenity=public_bookcase($|;.*)", generatedLayer.isShown.mappings[1].if["and"][1].or[0].and[0])
+                T.isTrue(generatedLayer.minzoom <= layer.minzoom, "Zoomlevel is to high")
+                let renderings = Utils.NoNull(Utils.NoNull(generatedLayer.tagRenderings
+                    .map(tr => (<TagRenderingConfigJson>tr).render))
+                    .map(render => render["en"]))
+                T.isTrue(renderings.some(r => r.indexOf("import_button") > 0), "no import button found")
+            }]
+        ]);
+    }
+
+
+}