feat(oneOf): expect(value).to.contain.oneOf([])

chaijs · Jun 26, 2019 · 7eaf684 · 7eaf684
1 parent 5930c01
commit 7eaf684
Showing 1 changed file with 18 additions and 7 deletions.
diff --git a/lib/chai/core/assertions.js b/lib/chai/core/assertions.js
@@ -3135,16 +3135,27 @@ module.exports = function (chai, _) {
     if (msg) flag(this, 'message', msg);
     var expected = flag(this, 'object')
       , flagMsg = flag(this, 'message')
-      , ssfi = flag(this, 'ssfi');
+      , ssfi = flag(this, 'ssfi')
+      , contains = flag(this, 'contains');
     new Assertion(list, flagMsg, ssfi, true).to.be.an('array');
 
-    this.assert(
+    if (contains) {
+      this.assert(
+        list.some(possibility => expected.indexOf(possibility) > -1)
+        , 'expected #{this} to contain one of #{exp}'
+        , 'expected #{this} to not contain one of #{exp}'
+        , list
+        , expected
+      );
+    } else {
+      this.assert(
         list.indexOf(expected) > -1
-      , 'expected #{this} to be one of #{exp}'
-      , 'expected #{this} to not be one of #{exp}'
-      , list
-      , expected
-    );
+        , 'expected #{this} to be one of #{exp}'
+        , 'expected #{this} to not be one of #{exp}'
+        , list
+        , expected
+      );
+    }
   }
 
   Assertion.addMethod('oneOf', oneOf);