1 files changed, 43 insertions, 0 deletions
diff --git a/test/t/hash.rb b/test/t/hash.rb
index af662688a..04a9a1c24 100644
--- a/test/t/hash.rb
+++ b/test/t/hash.rb
@@ -5,6 +5,10 @@ assert('Hash', '15.2.13') do
   Hash.class == Class
 end
 
+assert('Hash superclass', '15.2.13.2') do
+  Hash.superclass == Object
+end
+
 assert('Hash#==', '15.2.13.4.1') do
   ({ 'abc' => 'abc' } ==  { 'abc' => 'abc' }) and
     not ({ 'abc' => 'abc' } ==  { 'cba' => 'cba' })
@@ -224,3 +228,42 @@ assert('Hash#values', '15.2.13.4.28') do
 
   a.values == ['abc_value']
 end
+
+# Not ISO specified
+
+assert('Hash#reject') do
+  h = {:one => 1, :two => 2, :three => 3, :four => 4}
+  ret = h.reject do |k,v|
+    v % 2 == 0
+  end
+  ret == {:one => 1, :three => 3} and
+    h == {:one => 1, :two => 2, :three => 3, :four => 4}
+end
+
+assert('Hash#reject!') do
+  h = {:one => 1, :two => 2, :three => 3, :four => 4}
+  ret = h.reject! do |k,v|
+    v % 2 == 0
+  end
+  ret == {:one => 1, :three => 3} and
+    h == {:one => 1, :three => 3}
+end
+
+assert('Hash#select') do
+  h = {:one => 1, :two => 2, :three => 3, :four => 4}
+  ret = h.select do |k,v|
+    v % 2 == 0
+  end
+  ret == {:two => 2, :four => 4} and
+    h == {:one => 1, :two => 2, :three => 3, :four => 4}
+end
+
+assert('Hash#select!') do
+  h = {:one => 1, :two => 2, :three => 3, :four => 4}
+  ret = h.select! do |k,v|
+    v % 2 == 0
+  end
+  ret == {:two => 2, :four => 4} and
+    h == {:two => 2, :four => 4}
+end
+