Guard ruby/spec with spec/mspec/tool/wrap_with_guard.rb

1 files changed, 15 insertions, 12 deletions

diff --git a/spec/ruby/library/prime/integer/prime_spec.rb b/spec/ruby/library/prime/integer/prime_spec.rb
index 53de76d5ab..65b779e319 100644
--- a/spec/ruby/library/prime/integer/prime_spec.rb
+++ b/spec/ruby/library/prime/integer/prime_spec.rb
@@ -1,17 +1,20 @@
 require_relative '../../../spec_helper'
-require 'prime'
 
-describe "Integer#prime?" do
-  it "returns a true value for prime numbers" do
-    2.prime?.should be_true
-    3.prime?.should be_true
-    (2**31-1).prime?.should be_true  # 8th Mersenne prime (M8)
-  end
+ruby_version_is ""..."3.1" do
+  require 'prime'
+
+  describe "Integer#prime?" do
+    it "returns a true value for prime numbers" do
+      2.prime?.should be_true
+      3.prime?.should be_true
+      (2**31-1).prime?.should be_true  # 8th Mersenne prime (M8)
+    end
 
-  it "returns a false value for composite numbers" do
-    4.prime?.should be_false
-    15.prime?.should be_false
-    (2**32-1).prime?.should be_false
-    ( (2**17-1)*(2**19-1) ).prime?.should be_false  # M6*M7
+    it "returns a false value for composite numbers" do
+      4.prime?.should be_false
+      15.prime?.should be_false
+      (2**32-1).prime?.should be_false
+      ( (2**17-1)*(2**19-1) ).prime?.should be_false  # M6*M7
+    end
   end
 end