Allow specifying the test files and typings file manually

.gitignore

@@ -1,3 +1,4 @@
 node_modules
 yarn.lock
 dist/
+.vscode/

readme.md

@@ -213,6 +213,19 @@ Default: `process.cwd()`
 
 Current working directory of the project to retrieve the diagnostics for.
 
+##### typingsFile
+
+Type: `string`<br>
+Default: `''`
+
+Path to the type definitions of the project.
+
+##### testFiles
+
+type: `string[]`<br>
+default: `['']`
+
+An array of test files with their path
 
 ## License
 

source/lib/compiler.ts

@@ -1,4 +1,3 @@
-import * as path from 'path';
 import {
 	flattenDiagnosticMessageText,
 	createProgram,
@@ -65,11 +64,9 @@ const ignoreDiagnostic = (diagnostic: TSDiagnostic, expectedErrors: Map<Location
  * @returns List of diagnostics
  */
 export const getDiagnostics = (context: Context): Diagnostic[] => {
-	const fileNames = context.testFiles.map(fileName => path.join(context.cwd, fileName));
-
 	const diagnostics: Diagnostic[] = [];
 
-	const program = createProgram(fileNames, context.config.compilerOptions);
+	const program = createProgram(context.testFiles, context.config.compilerOptions);
 
 	const tsDiagnostics = program
 		.getSemanticDiagnostics()

source/lib/index.ts

@@ -9,11 +9,12 @@ import {Context, Config} from './interfaces';
 
 export interface Options {
 	cwd: string;
+	typingsFile?: string;
+	testFiles?: string[];
 }
 
 const findTypingsFile = async (pkg: any, options: Options) => {
-	const typings = pkg.types || pkg.typings || 'index.d.ts';
-
+	const typings = options.typingsFile || pkg.types || pkg.typings || 'index.d.ts';
 	const typingsExist = await pathExists(path.join(options.cwd, typings));
 
 	if (!typingsExist) {
@@ -24,12 +25,15 @@ const findTypingsFile = async (pkg: any, options: Options) => {
 };
 
 const findTestFiles = async (typingsFile: string, options: Options & {config: Config}) => {
+	if (options.testFiles?.length) {
+		return options.testFiles.map(fileName => path.join(options.cwd, fileName));
+	}
+
 	const testFile = typingsFile.replace(/\.d\.ts$/, '.test-d.ts');
 	const tsxTestFile = typingsFile.replace(/\.d\.ts$/, '.test-d.tsx');
 	const testDir = options.config.directory;
 
 	let testFiles = await globby([testFile, tsxTestFile], {cwd: options.cwd});
-
 	const testDirExists = await pathExists(path.join(options.cwd, testDir));
 
 	if (testFiles.length === 0 && !testDirExists) {
@@ -40,7 +44,7 @@ const findTestFiles = async (typingsFile: string, options: Options & {config: Co
 		testFiles = await globby([`${testDir}/**/*.ts`, `${testDir}/**/*.tsx`], {cwd: options.cwd});
 	}
 
-	return testFiles;
+	return testFiles.map(fileName => path.join(options.cwd, fileName));
 };
 
 /**
@@ -56,7 +60,6 @@ export default async (options: Options = {cwd: process.cwd()}) => {
 	}
 
 	const pkg = pkgResult.packageJson;
-
 	const config = loadConfig(pkg as any, options.cwd);
 
 	// Look for a typings file, otherwise use `index.d.ts` in the root directory. If the file is not found, throw an error.