Added einheit module and nimble file.

test.nim

@@ -0,0 +1,55 @@
+import einheit
+
+test_suite UnitTests:
+  var
+    test_obj: int
+
+  method setup()=
+    self.test_obj = 5
+    self.test_obj = 90
+
+  method test_for_b()=
+    var b = 0
+    self.assert_true(4 == 4)
+
+  method test_for_c()=
+    var c = 0
+    self.assert_equal(c, 1)
+
+
+test_suite UnitTestsNew:
+  var
+    test_obj: int
+
+  method setup()=
+    self.test_obj = 5
+    self.test_obj = 90
+
+  method test_test_obj()=
+    self.assert_true(self.test_obj == 90)
+
+  method test_stuff()=
+    self.assert_equal("Stuff", "Stuff")
+
+  method test_more()=
+    self.assert_equal("String", "String")
+
+  method test_more_more()=
+    self.assert_false("String" != "String")
+
+
+proc raises_os()=
+  raise newException(OSError, "Oh no! OS malfunction!")
+
+# Inheritance!
+test_suite TestInherit of UnitTestsNew:
+  method test_raises()=
+
+    # Two ways of asserting
+    self.assert_raises OSError:
+      raises_os()
+
+    self.assert_raises(OSError, raises_os())
+
+when isMainModule:
+  run_tests()