From cd876c0026bf59831c0322946f0d73a8328c1b3f Mon Sep 17 00:00:00 2001
From: jsteuer <jan.niklas.steuer@gmail.com>
Date: Sat, 21 Dec 2019 13:27:11 +0100
Subject: [PATCH] fix argument validation
---
src/Helpers.ts | 13 ++++++++-----
1 files changed, 8 insertions(+), 5 deletions(-)
diff --git a/src/Helpers.ts b/src/Helpers.ts
index e0dccb0..83fc07f 100644
--- a/src/Helpers.ts
+++ b/src/Helpers.ts
@@ -65,13 +65,16 @@
const traceMethod = (method: string, args?: any[]) => console.log(["[MC MOCK API]", " ", method, "(", (args ? args : [""]).join(","), ")"].join(""));
const runtimeCheck = (errorMessage: string, isInvalid: (param: any) => boolean) => {
return (paramName: string, value: any, optional: boolean = false) => {
- if (!optional && (value === null || value === undefined)) {
- throw new Error(`parameter '${paramName}' is null or undefined`);
- } else {
- if (isInvalid(value)) {
- throw new Error(`parameter '${paramName}' is invalid: ${errorMessage}`);
+ if (value === undefined) {
+ if (optional) {
+ return;
+ } else {
+ throw new Error(`missing parameter '${paramName}'`);
}
}
+ if (isInvalid(value)) {
+ throw new Error(`parameter '${paramName}' is invalid: ${errorMessage}`);
+ }
}
}
const runtimeCheckString = runtimeCheck("not a string", v => typeof v !== "string");
--
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