diff --git a/spec/lib/msf/ui/console/command_dispatcher/core_spec.rb b/spec/lib/msf/ui/console/command_dispatcher/core_spec.rb
index ad49a775f23cc..2c9b08f00fab6 100644
--- a/spec/lib/msf/ui/console/command_dispatcher/core_spec.rb
+++ b/spec/lib/msf/ui/console/command_dispatcher/core_spec.rb
@@ -676,6 +676,16 @@ def set_tabs_test(option)
   end
 
   describe "#parse_duration" do
-
+    expected_values = {
+          "1s" => 1,
+          "2s" => 2,
+          "1.5m" => 90,
+          "1.5d" => 129600,
+          "1d1h1m1s" => 90061,
+          "1.5d1.5h1.5m1.5s" => 135091,
+          "1.75m70s" => 175
+    }
+    
+    it_behaves_like "parses time values correctly", expected_values
   end
 end
diff --git a/spec/support/shared/examples/parse_duration.rb b/spec/support/shared/examples/parse_duration.rb
new file mode 100644
index 0000000000000..0ceb65752e44f
--- /dev/null
+++ b/spec/support/shared/examples/parse_duration.rb
@@ -0,0 +1,9 @@
+# -*- coding:binary -*-
+
+RSpec.shared_examples_for "parses time values correctly" do |expected_values|
+	it "returns expected values" do
+		expected_values.each do |input, output|
+			expect(core.parse_duration(input)).to eq(output)
+		end
+	end
+end