SERVER-36774 Allow shell assertion functions to take an object for the 'msg'

1 files changed, 19 insertions, 0 deletions

diff --git a/jstests/noPassthrough/shell_assertions.js b/jstests/noPassthrough/shell_assertions.js
index 8915d087a3e..88fdcaa79ab 100644
--- a/jstests/noPassthrough/shell_assertions.js
+++ b/jstests/noPassthrough/shell_assertions.js
@@ -133,6 +133,25 @@
         assert.eq(true, called, 'called should not have been udpated');
     });
 
+    tests.push(function assertShouldAcceptObjectAsMsg() {
+        const objMsg = {someMessage: 1};
+        const err = assert.throws(() => {
+            assert(false, objMsg);
+        });
+
+        assert.neq(-1,
+                   err.message.indexOf(tojson(objMsg)),
+                   'Error message should have included ' + tojson(objMsg));
+    });
+
+    tests.push(function assertShouldNotAcceptNonObjStringFunctionAsMsg() {
+        const err = assert.throws(() => {
+            assert(true, 1234);
+        });
+
+        assert.neq(-1, err.message.indexOf("msg parameter must be a "));
+    });
+
     /* assert.automsg tests */
 
     tests.push(function automsgShouldPassToAssert() {