Add tests for parse_value & parse_literal of std scalars

Also make Int parsing more compatible with JS version

Replicates graphql/graphql-js@2a66440

Author: Cito

README.md

@@ -16,7 +16,7 @@ The current version 3.0.0a2 of GraphQL-core is up-to-date
 with GraphQL.js version 14.4.2.
 
 All parts of the API are covered by an extensive test suite
-of currently 1907 unit tests.
+of currently 1917 unit tests.
 
 
 ## Documentation

src/graphql/pyutils/is_finite.py

@@ -6,4 +6,6 @@
 
 def is_finite(value: Any) -> bool:
     """Return true if a value is a finite number."""
-    return isinstance(value, int) or (isinstance(value, float) and isfinite(value))
+    return (isinstance(value, int) and not isinstance(value, bool)) or (
+        isinstance(value, float) and isfinite(value)
+    )

tests/pyutils/test_is_finite.py

@@ -8,10 +8,10 @@ def describe_is_finite():
     def null_is_not_finite():
         assert is_finite(None) is False
 
-    def booleans_are_finite():
-        # since they are considered as integers 0 and 1
-        assert is_finite(False) is True
-        assert is_finite(True) is True
+    def booleans_are_not_finite():
+        # they should not be considered as integers 0 and 1
+        assert is_finite(False) is False
+        assert is_finite(True) is False
 
     def strings_are_not_finite():
         assert is_finite("string") is False