Add documentation examples for invalid-index-returned, invalid-bytes-returned, invalid-bool-returned, invalid-hash-returned

doc/data/messages/i/invalid-bool-returned/bad.py

@@ -0,0 +1,5 @@
+class BadBool:
+    """__bool__ returns an int"""
+
+    def __bool__(self):  # [invalid-bool-returned]
+        return 1

doc/data/messages/i/invalid-bool-returned/good.py

@@ -1 +1,5 @@
-# This is a placeholder for correct code for this message.
+class GoodBool:
+    """__bool__ returns `bool`"""
+
+    def __bool__(self):
+        return True

doc/data/messages/i/invalid-bytes-returned/bad.py

@@ -0,0 +1,5 @@
+class BadBytes:
+    """__bytes__ returns <type 'str'>"""
+
+    def __bytes__(self):  # [invalid-bytes-returned]
+        return "123"

doc/data/messages/i/invalid-bytes-returned/good.py

@@ -1 +1,5 @@
-# This is a placeholder for correct code for this message.
+class GoodBytes:
+    """__bytes__ returns <type 'bytes'>"""
+
+    def __bytes__(self):
+        return b"some bytes"

doc/data/messages/i/invalid-hash-returned/bad.py

@@ -0,0 +1,5 @@
+class BadHash:
+    """__hash__ returns dict"""
+
+    def __hash__(self):  # [invalid-hash-returned]
+        return {}

doc/data/messages/i/invalid-hash-returned/good.py

@@ -1 +1,5 @@
-# This is a placeholder for correct code for this message.
+class GoodHash:
+    """__hash__ returns `int`"""
+
+    def __hash__(self):
+        return 19

doc/data/messages/i/invalid-index-returned/bad.py

@@ -0,0 +1,5 @@
+class BadIndex:
+    """__index__ returns a dict"""
+
+    def __index__(self):  # [invalid-index-returned]
+        return {"19": "19"}

doc/data/messages/i/invalid-index-returned/good.py

@@ -1 +1,5 @@
-# This is a placeholder for correct code for this message.
+class GoodIndex:
+    """__index__ returns <type 'int'>"""
+
+    def __index__(self):
+        return 19