ExerciceHelper => Add possibility to pass file or string to result file validation

helpers/ExerciceHelper.ts

@@ -5,9 +5,7 @@ import JSON5                               from 'json5';
 
 
 class ExerciceHelper {
-    validateResultFile(resultsFilePath: string): {
-        results: ExerciceResultsFile | undefined, isValid: boolean, errors: Array<ErrorObject<string, Record<string, any>, unknown> | string> | null | undefined
-    } {
+    validateResultFile(resultsFilePathOrStr: string, isFile: boolean = true): { results: ExerciceResultsFile | undefined, isValid: boolean, errors: Array<ErrorObject<string, Record<string, any>, unknown> | string> | null | undefined } {
         const ajv = new Ajv();
 
         const schema: JTDSchemaType<ExerciceResultsFile> = {
@@ -35,7 +33,7 @@ class ExerciceHelper {
         const validator = ajv.compile(schema);
 
         try {
-            const results = JSON5.parse(fs.readFileSync(resultsFilePath, 'utf8'));
+            const results = JSON5.parse(isFile ? fs.readFileSync(resultsFilePathOrStr, 'utf8') : resultsFilePathOrStr);
             const isValid = validator(results);
 
             return {