pythonthings
diff --git a/‎tests/unit/lib/__init__.py‎ b/‎tests/unit/lib/__init__.py‎
diff --git a/‎tests/unit/lib/flat_store_spec.py‎
Lines changed: 29 additions & 0 deletions b/‎tests/unit/lib/flat_store_spec.py‎
Lines changed: 29 additions & 0 deletions
@@ -0,0 +1,29 @@
+from describe import expect
+from intercom.lib.flat_store import FlatStore
+
+
+class DescribeIntercomFlatStore:
+
+    def it_raises_if_you_try_to_set_or_merge_in_nested_hash_structures(self):
+        data = FlatStore()
+        with expect.raise_error(ValueError):
+            data["thing"] = [1]
+        with expect.raise_error(ValueError):
+            data["thing"] = {1: 2}
+        with expect.raise_error(ValueError):
+            FlatStore(**{"1": {2: 3}})
+
+    def it_raises_if_you_try_to_use_a_non_string_key(self):
+        data = FlatStore()
+        with expect.raise_error(ValueError):
+            data[1] = "something"
+
+    def it_sets_and_merges_valid_entries(self):
+        data = FlatStore()
+        data["a"] = 1
+        data["b"] = 2
+        expect(data["a"]) == 1
+        expect(data["b"]) == 2
+        data = FlatStore(a=1, b=2)
+        expect(data["a"]) == 1
+        expect(data["b"]) == 2