diff --git a/lib/naturalsorter/version.rb b/lib/naturalsorter/version.rb
index 555804b..ed56bba 100644
--- a/lib/naturalsorter/version.rb
+++ b/lib/naturalsorter/version.rb
@@ -1,3 +1,3 @@
 module Naturalsorter
-  VERSION = "3.0.1"
+  VERSION = "3.0.2"
 end
diff --git a/lib/versioncmp.rb b/lib/versioncmp.rb
index 55b6d24..17c3b36 100644
--- a/lib/versioncmp.rb
+++ b/lib/versioncmp.rb
@@ -163,6 +163,7 @@ def self.timestamp? part
   def self.pre_process val
     cleaned_version = replace_x_dev val
     cleaned_version = replace_wildcards cleaned_version
+    replace_snapshot cleaned_version
     replace_leading_v cleaned_version
     replace_99_does_not_exist cleaned_version
     replace_timestamps cleaned_version
@@ -184,6 +185,12 @@ def self.replace_groovy val
     end
   end
 
+  def self.replace_snapshot val 
+    if val.match(/\-SNAPSHOT/)
+      val.gsub!("-SNAPSHOT", "")
+    end
+  end
+
 
   # Some glory Java Devs used the timestamp as version string
   # http://www.versioneye.com/package/commons-beanutils--commons-beanutils
diff --git a/naturalsorter.gemspec b/naturalsorter.gemspec
index 6d9423f..ea5171c 100644
--- a/naturalsorter.gemspec
+++ b/naturalsorter.gemspec
@@ -22,5 +22,5 @@ Gem::Specification.new do |s|
   # specify any dependencies here; for example:
   # s.add_development_dependency "rspec"
   # s.add_runtime_dependency "rest-client"
-  s.add_development_dependency "rspec", "2.14.1"
+  s.add_development_dependency "rspec", "3.2.0"
 end
diff --git a/spec/naturalsorter_spec.rb b/spec/naturalsorter_spec.rb
index b5aa231..a461f2f 100644
--- a/spec/naturalsorter_spec.rb
+++ b/spec/naturalsorter_spec.rb
@@ -116,28 +116,28 @@
 
   describe "is_version_current?" do
     it "returns true" do
-      Naturalsorter::Sorter.is_version_current?("1.1.1", "1.1.9").should be_true
+      Naturalsorter::Sorter.is_version_current?("1.1.1", "1.1.9").should be_truthy
     end
     it "returns true" do
-      Naturalsorter::Sorter.is_version_current?("1.1.1", "1.1.2").should be_true
+      Naturalsorter::Sorter.is_version_current?("1.1.1", "1.1.2").should be_truthy
     end
     it "returns true" do
-      Naturalsorter::Sorter.is_version_current?("1.1.1", "1.1.12").should be_true
+      Naturalsorter::Sorter.is_version_current?("1.1.1", "1.1.12").should be_truthy
     end
     it "returns false" do
-      Naturalsorter::Sorter.is_version_current?("1.1.1", "1.2.0").should be_false
+      Naturalsorter::Sorter.is_version_current?("1.1.1", "1.2.0").should be_falsey
     end
     it "returns false" do
-      Naturalsorter::Sorter.is_version_current?("1.1.1", "1.2").should be_false
+      Naturalsorter::Sorter.is_version_current?("1.1.1", "1.2").should be_falsey
     end
     it "returns false" do
-      Naturalsorter::Sorter.is_version_current?("1.1.1", "2.0").should be_false
+      Naturalsorter::Sorter.is_version_current?("1.1.1", "2.0").should be_falsey
     end
     it "returns false" do
-      Naturalsorter::Sorter.is_version_current?("1.1.1", "2").should be_false
+      Naturalsorter::Sorter.is_version_current?("1.1.1", "2").should be_falsey
     end
     it "returns false" do
-      Naturalsorter::Sorter.is_version_current?("1.1", "2.0").should be_false
+      Naturalsorter::Sorter.is_version_current?("1.1", "2.0").should be_falsey
     end
   end
 
@@ -182,25 +182,25 @@
   describe "bigger?" do
 
     it "returns true" do
-      Naturalsorter::Sorter.bigger?("1.1", "1.0").should be_true
+      Naturalsorter::Sorter.bigger?("1.1", "1.0").should be_truthy
     end
     it "returns true" do
-      Naturalsorter::Sorter.bigger?("1.1", "20030211.134440").should be_true
+      Naturalsorter::Sorter.bigger?("1.1", "20030211.134440").should be_truthy
     end
     it "returns true" do
-      Naturalsorter::Sorter.bigger?("1.1", "20030211").should be_true
+      Naturalsorter::Sorter.bigger?("1.1", "20030211").should be_truthy
     end
     it "returns true" do
-      Naturalsorter::Sorter.bigger?("2.0", "1.0").should be_true
+      Naturalsorter::Sorter.bigger?("2.0", "1.0").should be_truthy
     end
     it "returns true" do
-      Naturalsorter::Sorter.bigger?("2.20", "2.9").should be_true
+      Naturalsorter::Sorter.bigger?("2.20", "2.9").should be_truthy
     end
     it "returns false" do
-      Naturalsorter::Sorter.bigger?("2.20", "2.20").should be_false
+      Naturalsorter::Sorter.bigger?("2.20", "2.20").should be_falsey
     end
     it "returns false" do
-      Naturalsorter::Sorter.bigger?("2.20", "3.0").should be_false
+      Naturalsorter::Sorter.bigger?("2.20", "3.0").should be_falsey
     end
 
   end
@@ -208,31 +208,31 @@
   describe "bigger_or_equal?" do
 
     it "returns true" do
-      Naturalsorter::Sorter.bigger_or_equal?("1.1", "1.0").should be_true
+      Naturalsorter::Sorter.bigger_or_equal?("1.1", "1.0").should be_truthy
     end
     it "returns true" do
-      Naturalsorter::Sorter.bigger_or_equal?("2.0", "1.0").should be_true
+      Naturalsorter::Sorter.bigger_or_equal?("2.0", "1.0").should be_truthy
     end
     it "returns true" do
-      Naturalsorter::Sorter.bigger_or_equal?("2.20", "2.9").should be_true
+      Naturalsorter::Sorter.bigger_or_equal?("2.20", "2.9").should be_truthy
     end
     it "returns true" do
-      Naturalsorter::Sorter.bigger_or_equal?("2.20", "2.20").should be_true
+      Naturalsorter::Sorter.bigger_or_equal?("2.20", "2.20").should be_truthy
     end
     it "returns true" do
-      Naturalsorter::Sorter.bigger_or_equal?("2.20", "2.20.0").should be_true
+      Naturalsorter::Sorter.bigger_or_equal?("2.20", "2.20.0").should be_truthy
     end
     it "returns true" do
-      Naturalsorter::Sorter.bigger_or_equal?("2.20", "2.20").should be_true
+      Naturalsorter::Sorter.bigger_or_equal?("2.20", "2.20").should be_truthy
     end
     it "returns true" do
-      Naturalsorter::Sorter.bigger_or_equal?("v3.2.0", "3.2.0").should be_true
+      Naturalsorter::Sorter.bigger_or_equal?("v3.2.0", "3.2.0").should be_truthy
     end
     it "returns true" do
-      Naturalsorter::Sorter.bigger_or_equal?("v3.2.0", "3.1.0").should be_true
+      Naturalsorter::Sorter.bigger_or_equal?("v3.2.0", "3.1.0").should be_truthy
     end
     it "returns false" do
-      Naturalsorter::Sorter.bigger_or_equal?("2.20", "3.0").should be_false
+      Naturalsorter::Sorter.bigger_or_equal?("2.20", "3.0").should be_falsey
     end
 
   end
@@ -240,25 +240,25 @@
   describe "smaller?" do
 
     it "returns false" do
-      Naturalsorter::Sorter.smaller?("1.1", "1.0").should be_false
+      Naturalsorter::Sorter.smaller?("1.1", "1.0").should be_falsey
     end
     it "returns false" do
-      Naturalsorter::Sorter.smaller?("2.0", "1.0").should be_false
+      Naturalsorter::Sorter.smaller?("2.0", "1.0").should be_falsey
     end
     it "returns false" do
-      Naturalsorter::Sorter.smaller?("2.20", "2.9").should be_false
+      Naturalsorter::Sorter.smaller?("2.20", "2.9").should be_falsey
     end
     it "returns false" do
-      Naturalsorter::Sorter.smaller?("2.20", "2.20").should be_false
+      Naturalsorter::Sorter.smaller?("2.20", "2.20").should be_falsey
     end
     it "returns true" do
-      Naturalsorter::Sorter.smaller?("2.20", "3.0").should be_true
+      Naturalsorter::Sorter.smaller?("2.20", "3.0").should be_truthy
     end
     it "returns false" do
-      Naturalsorter::Sorter.smaller?("2.0", "2.0").should be_false
+      Naturalsorter::Sorter.smaller?("2.0", "2.0").should be_falsey
     end
     it "returns false" do
-      Naturalsorter::Sorter.smaller?("2.0", "2.0.0").should be_false
+      Naturalsorter::Sorter.smaller?("2.0", "2.0.0").should be_falsey
     end
 
   end
@@ -266,28 +266,28 @@
   describe "smaller_or_equal?" do
 
     it "returns false" do
-      Naturalsorter::Sorter.smaller_or_equal?("1.1", "1.0").should be_false
+      Naturalsorter::Sorter.smaller_or_equal?("1.1", "1.0").should be_falsey
     end
     it "returns false" do
-      Naturalsorter::Sorter.smaller_or_equal?("2.0", "1.0").should be_false
+      Naturalsorter::Sorter.smaller_or_equal?("2.0", "1.0").should be_falsey
     end
     it "returns false" do
-      Naturalsorter::Sorter.smaller_or_equal?("2.20", "2.9").should be_false
+      Naturalsorter::Sorter.smaller_or_equal?("2.20", "2.9").should be_falsey
     end
     it "returns false" do
-      Naturalsorter::Sorter.smaller_or_equal?("2.20", "2.20").should be_true
+      Naturalsorter::Sorter.smaller_or_equal?("2.20", "2.20").should be_truthy
     end
     it "returns false" do
-      Naturalsorter::Sorter.smaller_or_equal?("2.20.0", "2.20").should be_true
+      Naturalsorter::Sorter.smaller_or_equal?("2.20.0", "2.20").should be_truthy
     end
     it "returns true" do
-      Naturalsorter::Sorter.smaller_or_equal?("2.20", "2.20").should be_true
+      Naturalsorter::Sorter.smaller_or_equal?("2.20", "2.20").should be_truthy
     end
     it "returns true" do
-      Naturalsorter::Sorter.smaller_or_equal?("2.20", "3.0").should be_true
+      Naturalsorter::Sorter.smaller_or_equal?("2.20", "3.0").should be_truthy
     end
     it "returns true" do
-      Naturalsorter::Sorter.smaller_or_equal?("2.20", "v3.0").should be_true
+      Naturalsorter::Sorter.smaller_or_equal?("2.20", "v3.0").should be_truthy
     end
 
   end
diff --git a/spec/version_tag_recognizer_spec.rb b/spec/version_tag_recognizer_spec.rb
index 8258038..3792be9 100644
--- a/spec/version_tag_recognizer_spec.rb
+++ b/spec/version_tag_recognizer_spec.rb
@@ -3,145 +3,145 @@
 describe VersionTagRecognizer do
 
   it "release? is true" do
-    VersionTagRecognizer.release?("1.1").should be_true
+    VersionTagRecognizer.release?("1.1").should be_truthy
   end
 
   it "release? is true" do
-    VersionTagRecognizer.release?("1.0.0").should be_true
+    VersionTagRecognizer.release?("1.0.0").should be_truthy
   end
 
   it "release? is true" do
-    VersionTagRecognizer.release?("1").should be_true
+    VersionTagRecognizer.release?("1").should be_truthy
   end
 
   it "release? is true" do
-    VersionTagRecognizer.release?("3.3.2.GA").should be_true
+    VersionTagRecognizer.release?("3.3.2.GA").should be_truthy
   end
 
   it "release? is true" do
-    VersionTagRecognizer.release?("4.1.5.SP1").should be_true
+    VersionTagRecognizer.release?("4.1.5.SP1").should be_truthy
   end
 
   it "release? is true" do
-    VersionTagRecognizer.release?("3.1.0.RELEASE").should be_true
+    VersionTagRecognizer.release?("3.1.0.RELEASE").should be_truthy
   end
 
   it "release? is true" do
-    VersionTagRecognizer.release?("3.2.0.BUILD").should be_false
+    VersionTagRecognizer.release?("3.2.0.BUILD").should be_falsey
   end
 
   it "release? is true" do
-    VersionTagRecognizer.release?("3.2.0buiLd").should be_false
+    VersionTagRecognizer.release?("3.2.0buiLd").should be_falsey
   end
 
   it "release? is true" do
-    VersionTagRecognizer.release?("3.2.0.Final").should be_true
+    VersionTagRecognizer.release?("3.2.0.Final").should be_truthy
   end
 
   it "release? is true" do
-    VersionTagRecognizer.release?("3.2.0FINAL").should be_true
+    VersionTagRecognizer.release?("3.2.0FINAL").should be_truthy
   end
 
   it "release? is false" do
-    VersionTagRecognizer.release?("1.1.pre").should be_false
+    VersionTagRecognizer.release?("1.1.pre").should be_falsey
   end
 
   it "release? is false" do
-    VersionTagRecognizer.release?("2.5.6.SEC03").should be_false
+    VersionTagRecognizer.release?("2.5.6.SEC03").should be_falsey
   end
 
   it "release? is false" do
-    VersionTagRecognizer.release?("2.3.8.pre1").should be_false
+    VersionTagRecognizer.release?("2.3.8.pre1").should be_falsey
   end
 
   it "release? is false" do
-    VersionTagRecognizer.release?("2.3.9.pre").should be_false
+    VersionTagRecognizer.release?("2.3.9.pre").should be_falsey
   end
 
   it "release? is false" do
-    VersionTagRecognizer.release?("3.0.0.beta4").should be_false
+    VersionTagRecognizer.release?("3.0.0.beta4").should be_falsey
   end
 
   it "release? is false" do
-    VersionTagRecognizer.release?("3.0.0.BETA4").should be_false
+    VersionTagRecognizer.release?("3.0.0.BETA4").should be_falsey
   end
 
   it "release? is false" do
-    VersionTagRecognizer.release?("3.0.0.beta").should be_false
+    VersionTagRecognizer.release?("3.0.0.beta").should be_falsey
   end
 
   it "release? is false" do
-    VersionTagRecognizer.release?("3.0.0.rc").should be_false
+    VersionTagRecognizer.release?("3.0.0.rc").should be_falsey
   end
 
   it "release? is false" do
-    VersionTagRecognizer.release?("3.0.0.rc2").should be_false
+    VersionTagRecognizer.release?("3.0.0.rc2").should be_falsey
   end
 
   it "release? is false" do
-    VersionTagRecognizer.release?("3.0.0.RC2").should be_false
+    VersionTagRecognizer.release?("3.0.0.RC2").should be_falsey
   end
 
   it "release? is false" do
-    VersionTagRecognizer.release?("2.0.x-dev").should be_false
+    VersionTagRecognizer.release?("2.0.x-dev").should be_falsey
   end
 
   it "release? is false" do
-    VersionTagRecognizer.release?("2.0.x-DEV").should be_false
+    VersionTagRecognizer.release?("2.0.x-DEV").should be_falsey
   end
 
   it "release? is false" do
-    VersionTagRecognizer.release?("1.8b1").should be_false
+    VersionTagRecognizer.release?("1.8b1").should be_falsey
   end
 
   it "release? is false" do
-    VersionTagRecognizer.release?("1.8B1").should be_false
+    VersionTagRecognizer.release?("1.8B1").should be_falsey
   end
 
   it "release? is false" do
-    VersionTagRecognizer.release?("1.1.3a").should be_false
+    VersionTagRecognizer.release?("1.1.3a").should be_falsey
   end
 
   it "release? is false" do
-    VersionTagRecognizer.release?("1.1.3A").should be_false
+    VersionTagRecognizer.release?("1.1.3A").should be_falsey
   end
 
   it "release? is false" do
-    VersionTagRecognizer.release?("1.SNAPSHOT").should be_false
+    VersionTagRecognizer.release?("1.SNAPSHOT").should be_falsey
   end
 
   it "release? is false" do
-    VersionTagRecognizer.release?("1.snapshot").should be_false
+    VersionTagRecognizer.release?("1.snapshot").should be_falsey
   end
 
   it "release? is false" do
-    VersionTagRecognizer.release?("1.M1").should be_false
+    VersionTagRecognizer.release?("1.M1").should be_falsey
   end
 
   it "release? is false" do
-    VersionTagRecognizer.release?("2.0-m4").should be_false
+    VersionTagRecognizer.release?("2.0-m4").should be_falsey
   end
 
 
 
   it "is alpha? is true" do
-    VersionTagRecognizer.alpha?("2.0.alpha").should be_true
+    VersionTagRecognizer.alpha?("2.0.alpha").should be_truthy
   end
 
   it "is alpha? is true" do
-    VersionTagRecognizer.alpha?("2.1.0alpha").should be_true
+    VersionTagRecognizer.alpha?("2.1.0alpha").should be_truthy
   end
 
   it "is alpha? is false" do
-    VersionTagRecognizer.alpha?("2.0.1").should be_false
+    VersionTagRecognizer.alpha?("2.0.1").should be_falsey
   end
 
   it "is alpha? is false" do
-    VersionTagRecognizer.alpha?("2.1.0-BETA1").should be_false
+    VersionTagRecognizer.alpha?("2.1.0-BETA1").should be_falsey
   end
 
   it "is tagged? is true" do
-    VersionTagRecognizer.tagged?("2.1.0alpha").should be_true
+    VersionTagRecognizer.tagged?("2.1.0alpha").should be_truthy
   end
 
 
@@ -162,27 +162,27 @@
 
 
   it "is beta? is true" do
-    VersionTagRecognizer.beta?("2.0.beta").should be_true
+    VersionTagRecognizer.beta?("2.0.beta").should be_truthy
   end
 
   it "is beta? is true" do
-    VersionTagRecognizer.beta?("2.1.0beta").should be_true
+    VersionTagRecognizer.beta?("2.1.0beta").should be_truthy
   end
 
   it "is beta? is false" do
-    VersionTagRecognizer.beta?("2.0.1").should be_false
+    VersionTagRecognizer.beta?("2.0.1").should be_falsey
   end
 
   it "is beta? is true" do
-    VersionTagRecognizer.beta?("2.2.0-BETA2").should be_true
+    VersionTagRecognizer.beta?("2.2.0-BETA2").should be_truthy
   end
 
   it "is beta? is true" do
-    VersionTagRecognizer.beta?("2.1.0-BETA1").should be_true
+    VersionTagRecognizer.beta?("2.1.0-BETA1").should be_truthy
   end
 
   it "is tagged? is true" do
-    VersionTagRecognizer.tagged?("2.1.0-BETA1").should be_true
+    VersionTagRecognizer.tagged?("2.1.0-BETA1").should be_truthy
   end
 
   it "remove_tag is right" do
@@ -192,64 +192,64 @@
 
 
   it "is dev? is true" do
-    VersionTagRecognizer.dev?("dev-master").should be_true
+    VersionTagRecognizer.dev?("dev-master").should be_truthy
   end
 
   it "is dev? is true" do
-    VersionTagRecognizer.dev?("dev-progress-helper").should be_true
+    VersionTagRecognizer.dev?("dev-progress-helper").should be_truthy
   end
 
   it "is dev? is true" do
-    VersionTagRecognizer.dev?("dev-deprecated").should be_true
+    VersionTagRecognizer.dev?("dev-deprecated").should be_truthy
   end
 
   it "is dev? is true" do
-    VersionTagRecognizer.dev?("2.2.x-dev").should be_true
+    VersionTagRecognizer.dev?("2.2.x-dev").should be_truthy
   end
 
   it "is dev? is false" do
-    VersionTagRecognizer.dev?("2.0.1").should be_false
+    VersionTagRecognizer.dev?("2.0.1").should be_falsey
   end
 
 
 
   it "is rc? is true" do
-    VersionTagRecognizer.rc?("2.0.rc").should be_true
+    VersionTagRecognizer.rc?("2.0.rc").should be_truthy
   end
 
   it "is rc? is true" do
-    VersionTagRecognizer.rc?("2.1.0rc").should be_true
+    VersionTagRecognizer.rc?("2.1.0rc").should be_truthy
   end
 
   it "is rc? is true" do
-    VersionTagRecognizer.rc?("2.2.0-RC3").should be_true
+    VersionTagRecognizer.rc?("2.2.0-RC3").should be_truthy
   end
 
   it "is rc? is false" do
-    VersionTagRecognizer.rc?("2.0.1").should be_false
+    VersionTagRecognizer.rc?("2.0.1").should be_falsey
   end
 
 
 
   it "is snapshot? is true" do
-    VersionTagRecognizer.snapshot?("2.0.snapshot").should be_true
+    VersionTagRecognizer.snapshot?("2.0.snapshot").should be_truthy
   end
 
   it "is snapshot? is true" do
-    VersionTagRecognizer.snapshot?("2.1.0snapshot").should be_true
+    VersionTagRecognizer.snapshot?("2.1.0snapshot").should be_truthy
   end
 
   it "is snapshot? is true" do
-    VersionTagRecognizer.snapshot?("2.2.0-snapshot3").should be_true
+    VersionTagRecognizer.snapshot?("2.2.0-snapshot3").should be_truthy
   end
 
   it "is snapshot? is false" do
-    VersionTagRecognizer.snapshot?("2.0.1").should be_false
+    VersionTagRecognizer.snapshot?("2.0.1").should be_falsey
   end
 
 
   it 'is a build' do
-    VersionTagRecognizer.build?("1.3.0-build.2921+sha.02c0ed2").should be_true
+    VersionTagRecognizer.build?("1.3.0-build.2921+sha.02c0ed2").should be_truthy
   end
 
 
@@ -296,34 +296,34 @@
 
 
   it "does fit stability" do
-    VersionTagRecognizer.does_it_fit_stability?( "2.2.1", "stable" ).should be_true
+    VersionTagRecognizer.does_it_fit_stability?( "2.2.1", "stable" ).should be_truthy
   end
   it "does not fit stability" do
-    VersionTagRecognizer.does_it_fit_stability?( "2.2.1-BETA", "stable" ).should be_false
+    VersionTagRecognizer.does_it_fit_stability?( "2.2.1-BETA", "stable" ).should be_falsey
   end
   it "does not fit stability" do
-    VersionTagRecognizer.does_it_fit_stability?( "1.3.0-build.2921+sha.02c0ed2", "stable" ).should be_false
+    VersionTagRecognizer.does_it_fit_stability?( "1.3.0-build.2921+sha.02c0ed2", "stable" ).should be_falsey
   end
   it "does not fit stability" do
-    VersionTagRecognizer.does_it_fit_stability?( "1.3.0-build.2809+sha.94bcc03", "stable" ).should be_false
+    VersionTagRecognizer.does_it_fit_stability?( "1.3.0-build.2809+sha.94bcc03", "stable" ).should be_falsey
   end
   it "does fit stability" do
-    VersionTagRecognizer.does_it_fit_stability?( "2.2.1-BETA", "alpha" ).should be_true
+    VersionTagRecognizer.does_it_fit_stability?( "2.2.1-BETA", "alpha" ).should be_truthy
   end
   it "does fit stability" do
-    VersionTagRecognizer.does_it_fit_stability?( "2.2.1-BETA", "beta" ).should be_true
+    VersionTagRecognizer.does_it_fit_stability?( "2.2.1-BETA", "beta" ).should be_truthy
   end
   it "does fit stability" do
-    VersionTagRecognizer.does_it_fit_stability?( "2.2.x-dev", "dev" ).should be_true
+    VersionTagRecognizer.does_it_fit_stability?( "2.2.x-dev", "dev" ).should be_truthy
   end
   it "does not fit stability" do
-    VersionTagRecognizer.does_it_fit_stability?( "2.2.x-dev", "alpha" ).should be_false
+    VersionTagRecognizer.does_it_fit_stability?( "2.2.x-dev", "alpha" ).should be_falsey
   end
   it "does not fit stability" do
-    VersionTagRecognizer.does_it_fit_stability?( "2.2.x-dev", "RC" ).should be_false
+    VersionTagRecognizer.does_it_fit_stability?( "2.2.x-dev", "RC" ).should be_falsey
   end
   it "does fit stability" do
-    VersionTagRecognizer.does_it_fit_stability?( "2.2.1-RC", "RC" ).should be_true
+    VersionTagRecognizer.does_it_fit_stability?( "2.2.1-RC", "RC" ).should be_truthy
   end
 
 
diff --git a/spec/versioncmp_spec.rb b/spec/versioncmp_spec.rb
index 484b1bd..9382078 100644
--- a/spec/versioncmp_spec.rb
+++ b/spec/versioncmp_spec.rb
@@ -182,4 +182,16 @@
     Versioncmp.compare("3.0", "3.0.0").should eql(0)
   end
 
+  it "3.1-SNAPSHOT is equal to 3.1-SNAPSHOT" do
+    Versioncmp.compare("3.1-SNAPSHOT", "3.1-SNAPSHOT").should eql(0)
+  end
+
+  it "3.1-SNAPSHOT is smaller than 3.2-SNAPSHOT" do
+    Versioncmp.compare("3.1-SNAPSHOT", "3.2-SNAPSHOT").should eql(-1)
+  end
+
+  it "3.1 is smaller than 3.2-SNAPSHOT" do
+    Versioncmp.compare("3.1", "3.2-SNAPSHOT").should eql(-1)
+  end
+
 end