# HG changeset patch
# User Franz Glasner <f.glasner@feldmann-mg.com>
# Date 1612965867 -3600
# Node ID 6a044778371abbf51481191438b583612f9bfa77
# Parent  edf5cc1ffd267b801cb008598e969bc74e333142
Some unittests for the new "strict" YAML parsing mode to prevent duplicate keys within a single YAML document

diff -r edf5cc1ffd26 -r 6a044778371a tests/data/duplicate-keys-2.yml
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tests/data/duplicate-keys-2.yml	Wed Feb 10 15:04:27 2021 +0100
@@ -0,0 +1,13 @@
+# -*- coding: utf-8; mode: yaml; indent-tabs-mode: nil; -*-
+
+# a subordinate duplicate key
+
+%YAML 1.1
+---
+
+toplevel-key:
+  subkey1: the value
+
+  subkey2: 2nd value
+
+  subkey1: not allowed
diff -r edf5cc1ffd26 -r 6a044778371a tests/data/duplicate-keys.yml
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tests/data/duplicate-keys.yml	Wed Feb 10 15:04:27 2021 +0100
@@ -0,0 +1,15 @@
+# -*- coding: utf-8; mode: yaml; indent-tabs-mode: nil; -*-
+
+# A top-level duplicate
+
+%YAML 1.1
+---
+
+top:
+  subkey1: the value
+
+other:
+  key2: another value
+
+top:
+  subkey2: the value
diff -r edf5cc1ffd26 -r 6a044778371a tests/test.py
--- a/tests/test.py	Wed Feb 10 14:47:41 2021 +0100
+++ b/tests/test.py	Wed Feb 10 15:04:27 2021 +0100
@@ -137,6 +137,30 @@
         cfg = configmix.toml.load(os.path.join(TESTDATADIR, "conf10.toml"))
         self.__check_tree(cfg)
 
+    def test12_yaml_no_duplicate_keys(self):
+        import yaml.constructor as yc
+        with io.open(os.path.join(TESTDATADIR, "duplicate-keys.yml"), "rt",
+                     encoding="utf-8") as f:
+            cfg = configmix.yaml.safe_load(f)
+
+        with io.open(os.path.join(TESTDATADIR, "duplicate-keys.yml"), "rt",
+                     encoding="utf-8") as f:
+            self.assertRaises(yc.ConstructorError,
+                              configmix.yaml.safe_load,
+                              f, strict=True)
+
+    def test13_yaml_no_duplicate_keys_2(self):
+        import yaml.constructor as yc
+        with io.open(os.path.join(TESTDATADIR, "duplicate-keys-2.yml"), "rt",
+                     encoding="utf-8") as f:
+            cfg = configmix.yaml.safe_load(f)
+
+        with io.open(os.path.join(TESTDATADIR, "duplicate-keys-2.yml"), "rt",
+                     encoding="utf-8") as f:
+            self.assertRaises(yc.ConstructorError,
+                              configmix.yaml.safe_load,
+                              f, strict=True)
+
 
 class _T02MixinLoadAndMerge: