fix: convert test to typescript

Converting snyk test to typescript.
Co-authored-by: Lili Kastilio <lili@lilianakastilio.co.uk>

src/lib/snyk-test/index.ts

@@ -0,0 +1,38 @@
+import chalk from 'chalk';
+import * as detect from '../detect';
+import runTest = require('./run-test');
+import * as pm from '../package-managers';
+import { UnsupportedPackageManagerError } from '../errors';
+import { Options, TestOptions } from '../types';
+import { LegacyVulnApiResult } from './legacy';
+
+export = test;
+
+async function test(root: string, options: any) {
+  try {
+    const packageManager = detect.detectPackageManager(root, options);
+    options.packageManager = packageManager;
+    const results = await run(root, options);
+    for (const res of results) {
+      if (!res.packageManager && packageManager) {
+        res.packageManager = packageManager;
+      }
+    }
+    if (results.length === 1) {
+      // Return only one result if only one found as this is the default usecase
+      return results[0];
+    }
+    // For gradle and yarnWorkspaces we may be returning more than one result
+    return results;
+  } catch (error) {
+    return Promise.reject(chalk.red.bold(error));
+  }
+}
+
+async function run(root: string, options: Options & TestOptions) {
+  const packageManager = options.packageManager;
+  if (!(options.docker || pm.SUPPORTED_PACKAGE_MANAGER_NAME[packageManager])) {
+    throw new UnsupportedPackageManagerError(packageManager);
+  }
+  return runTest(packageManager, root, options);
+}