From 23e58ecbfc36749cf789b9ef5ad485df8f401a88 Mon Sep 17 00:00:00 2001
From: deepankar <deepankar11093@gmail.com>
Date: Thu, 20 Apr 2017 03:18:38 +0530
Subject: [PATCH] implements issuperset

---
 python/common/org/python/types/FrozenSet.java | 15 +++++++++++
 tests/datatypes/test_frozenset.py             | 25 +++++++++++++++++++
 2 files changed, 40 insertions(+)

diff --git a/python/common/org/python/types/FrozenSet.java b/python/common/org/python/types/FrozenSet.java
index 9e26a92005..114e5ad61e 100644
--- a/python/common/org/python/types/FrozenSet.java
+++ b/python/common/org/python/types/FrozenSet.java
@@ -371,4 +371,19 @@ public org.python.Object issubset(org.python.Object other) {
             throw new org.python.exceptions.TypeError("'" + other.typeName() + "' object is not iterable");
         }
     }
+
+    @org.python.Method(
+            __doc__ = "Whether every element in other is in the set",
+            args = {"other"}
+    )
+    public org.python.Object issuperset(org.python.Object other) {
+        try {
+            if (!(other instanceof org.python.types.Set || other instanceof org.python.types.FrozenSet)) {
+                other = iterToFrozenSet(other);
+            }
+            return this.__ge__(other);
+        } catch (org.python.exceptions.AttributeError e) {
+            throw new org.python.exceptions.TypeError("'" + other.typeName() + "' object is not iterable");
+        }
+    }
 }
diff --git a/tests/datatypes/test_frozenset.py b/tests/datatypes/test_frozenset.py
index af8d1e44ca..0969d7c37f 100644
--- a/tests/datatypes/test_frozenset.py
+++ b/tests/datatypes/test_frozenset.py
@@ -191,6 +191,31 @@ def test_issubset(self):
                 print(err)
             """)
 
+    def test_issuperset(self):
+        self.assertCodeExecution("""
+            a = frozenset('abcd')
+            b = frozenset('ab')
+            c = set()
+            d = 'ab'
+
+            print(a.issuperset(b))
+            print(a.issuperset(a))
+            print(a.issuperset(c))
+
+            # iterable test
+            print(a.issuperset(d))
+            """)
+
+        # not-iterable test
+        self.assertCodeExecution("""
+            a = frozenset({1, 2, 3})
+            b = 1
+            try:
+                print(a.issuperset(b))
+            except TypeError as err:
+                print(err)
+            """)
+
 
 class UnaryFrozensetOperationTests(UnaryOperationTestCase, TranspileTestCase):
     data_type = 'frozenset'