Add a test that adds a source

cypress/e2e/modals.cy.ts

@@ -61,9 +61,27 @@ describe("modals", () => {
   });
 
   describe("sources", () => {
+    beforeEach(() => {
+      when.setStyle("layer");
+      when.click("nav:sources");
+    });
+
     it("active sources");
     it("public source");
-    it("add new source");
+
+    it("add new source", () => {
+      let sourceId = "n1z2v3r";
+      when.setValue("modal:sources.add.source_id", sourceId);
+      when.select("modal:sources.add.source_type", "tile_vector");
+      when.select("modal:sources.add.scheme_type", "tms");
+      when.click("modal:sources.add.add_source");
+      when.wait(200);
+      then(
+        get.styleFromLocalStorage().then((style) => style.sources[sourceId])
+      ).shouldInclude({
+        scheme: "tms",
+      });
+    });
   });
 
   describe("inspect", () => {

src/components/ModalSources.tsx

@@ -224,6 +224,7 @@ class AddSource extends React.Component<AddSourceProps, AddSourceState> {
         fieldSpec={{doc: t("Unique ID that identifies the source and is used in the layer to reference the source.")}}
         value={this.state.sourceId}
         onChange={(v: string) => this.setState({ sourceId: v})}
+        data-wd-key="modal:sources.add.source_id"
       />
       <FieldSelect
         label={t("Source Type")}
@@ -242,6 +243,7 @@ class AddSource extends React.Component<AddSourceProps, AddSourceState> {
         ]}
         onChange={mode => this.setState({mode: mode as EditorMode, source: this.defaultSource(mode as EditorMode)})}
         value={this.state.mode as string}
+        data-wd-key="modal:sources.add.source_type"
       />
       <ModalSourcesTypeEditor
         onChange={this.onChangeSource}
@@ -251,6 +253,7 @@ class AddSource extends React.Component<AddSourceProps, AddSourceState> {
       <InputButton
         className="maputnik-add-source-button"
         onClick={this.onAdd}
+        data-wd-key="modal:sources.add.add_source"
       >
         {t("Add Source")}
       </InputButton>

src/components/ModalSourcesTypeEditor.tsx

@@ -86,6 +86,7 @@ class TileURLSourceEditor extends React.Component<TileURLSourceEditorProps> {
           scheme
         })}
         value={this.props.source.scheme}
+        data-wd-key="modal:sources.add.scheme_type"
       />
       <FieldNumber
         label={t("Min Zoom")}