Another test to ensure correct observation of object literals.

packages/minimongo/minimongo_tests.js

@@ -2413,6 +2413,24 @@ Tinytest.add("minimongo - modifier affects selector", function (test) {
      {$and: [{ 'x.d': { $ne: 5, $gte: 433 } }, { 'a.b': 234 }]}]
   }, ['a.b', 'a.b.c', 'x.d'], 'group operators + duplicates');
 
+  // When top-level value is an object, it is treated as a literal,
+  // so when you query col.find({ a: { foo: 1, bar: 2 } })
+  // it doesn't mean you are looking for anything that has 'a.foo' to be 1 and
+  // 'a.bar' to be 2, instead you are looking for 'a' to be exatly that object
+  // with exatly that order of keys. { a: { foo: 1, bar: 2, baz: 3 } } wouldn't
+  // match it. That's why in this selector 'a' would be important key, not a.foo
+  // and a.bar.
+  testSelectorPaths({
+    a: {
+      foo: 1,
+      bar: 2
+    },
+    'b.c': {
+      literal: "object",
+      but: "we still observe any changes in 'b.c'"
+    }
+  }, ['a', 'b.c'], "literal object");
+
   function testSelectorAffectedByModifier (sel, mod, yes, desc) {
     if (yes)
       test.isTrue(LocalCollection._isSelectorAffectedByModifier(sel, mod, desc));