Sql projects: Tests for Create project from database for vscode extension (#21257)

* Test changes

* Tests for CreateProjectFromDatabaseQuickpick

* Address comments

* Update pwd to placeholder

extensions/sql-database-projects/src/dialogs/quickpickHelper.ts

@@ -0,0 +1,53 @@
+/*---------------------------------------------------------------------------------------------
+ *  Copyright (c) Microsoft Corporation. All rights reserved.
+ *  Licensed under the Source EULA. See License.txt in the project root for license information.
+ *--------------------------------------------------------------------------------------------*/
+
+import * as constants from '../common/constants';
+import * as vscode from 'vscode';
+
+/**
+ * Function created out of createProjectFromDatabaseQuickpick for testing purposes
+ * @returns true for sdk style project
+ * 			false for legacy style project
+ * 			undefined for exiting quickpick
+ */
+export async function getSDKStyleProjectInfo(): Promise<boolean | undefined> {
+	let sdkStyle;
+	const sdkLearnMoreButton: vscode.QuickInputButton = {
+		iconPath: new vscode.ThemeIcon('link-external'),
+		tooltip: constants.learnMore
+	};
+	const quickPick = vscode.window.createQuickPick();
+	quickPick.items = [{ label: constants.YesRecommended }, { label: constants.noString }];
+	quickPick.title = constants.sdkStyleProject;
+	quickPick.ignoreFocusOut = true;
+	const disposables: vscode.Disposable[] = [];
+
+	try {
+		quickPick.buttons = [sdkLearnMoreButton];
+		quickPick.placeholder = constants.SdkLearnMorePlaceholder;
+
+		const sdkStylePromise = new Promise<boolean | undefined>((resolve) => {
+			disposables.push(
+				quickPick.onDidHide(() => {
+					resolve(undefined);
+				}),
+				quickPick.onDidChangeSelection((item) => {
+					resolve(item[0].label === constants.YesRecommended);
+				}));
+
+			disposables.push(quickPick.onDidTriggerButton(async () => {
+				await vscode.env.openExternal(vscode.Uri.parse(constants.sdkLearnMoreUrl!));
+			}));
+		});
+
+		quickPick.show();
+		sdkStyle = await sdkStylePromise;
+		quickPick.hide();
+	} finally {
+		disposables.forEach(d => d.dispose());
+	}
+
+	return sdkStyle;
+}