crypto: improve randomInt out-of-range error message

Previously, the crypto.randomInt() message when "max" was less than or equal to "min" made it sound like the lower bound for "max" was hard-coded. Make it clear that it is instead dynamic based on the value of "min". For crypto.randomInt(10,0): Before: RangeError [ERR_OUT_OF_RANGE]: The value of "max" is out of range. It must be > 10. Received 0 After: RangeError [ERR_OUT_OF_RANGE]: The value of "max" is out of range. It must be greater than the value of "min" (10). Received 0 PR-URL: #35088 Reviewed-By: Anna Henningsen <anna@addaleax.net> Reviewed-By: Tobias Nießen <tniessen@tnie.de>
nodejs · Sep 22, 2020 · bf5a85b · bf5a85b
1 parent 5ef9ee4
commit bf5a85b
Show file tree

Hide file tree

Showing 2 changed files with 6 additions and 3 deletions.
diff --git a/lib/internal/crypto/random.js b/lib/internal/crypto/random.js
@@ -150,7 +150,9 @@ function randomInt(min, max, callback) {
     throw new ERR_INVALID_ARG_TYPE('max', 'safe integer', max);
   }
   if (max <= min) {
-    throw new ERR_OUT_OF_RANGE('max', `> ${min}`, max);
+    throw new ERR_OUT_OF_RANGE(
+      'max', `greater than the value of "min" (${min})`, max
+    );
   }
 
   // First we generate a random int between [0..range)

diff --git a/test/parallel/test-crypto-random.js b/test/parallel/test-crypto-random.js
@@ -462,8 +462,9 @@ assert.throws(
     assert.throws(() => crypto.randomInt(...arg, common.mustNotCall()), {
       code: 'ERR_OUT_OF_RANGE',
       name: 'RangeError',
-      message: 'The value of "max" is out of range. It must be > ' +
-               `${arg[arg.length - 2] || 0}. Received ${arg[arg.length - 1]}`
+      message: 'The value of "max" is out of range. It must be greater than ' +
+      `the value of "min" (${arg[arg.length - 2] || 0}). ` +
+      `Received ${arg[arg.length - 1]}`
     });
   }