Update to ruby/spec@ec84479

3 files changed, 13 insertions, 1 deletions

diff --git a/spec/ruby/core/kernel/Float_spec.rb b/spec/ruby/core/kernel/Float_spec.rb
index 6580c38137..af64fcbe86 100644
--- a/spec/ruby/core/kernel/Float_spec.rb
+++ b/spec/ruby/core/kernel/Float_spec.rb
@@ -54,6 +54,12 @@ describe :kernel_float, shared: true do
     -> { @object.send(:Float, "float") }.should raise_error(ArgumentError)
   end
 
+  it "raises an ArgumentError for a String with string in error message" do
+    -> { @object.send(:Float, "foo") }.should raise_error(ArgumentError) { |e|
+      e.message.should == 'invalid value for Float(): "foo"'
+    }
+  end
+
   it "raises an ArgumentError if there are two decimal points in the String" do
     -> { @object.send(:Float, "10.0.0") }.should raise_error(ArgumentError)
   end
diff --git a/spec/ruby/core/kernel/instance_of_spec.rb b/spec/ruby/core/kernel/instance_of_spec.rb
index 40e856b0d9..d1170d5047 100644
--- a/spec/ruby/core/kernel/instance_of_spec.rb
+++ b/spec/ruby/core/kernel/instance_of_spec.rb
@@ -1,7 +1,7 @@
 require_relative '../../spec_helper'
 require_relative 'fixtures/classes'
 
-describe Kernel, "#instance_of?" do
+describe "Kernel#instance_of?" do
   before :each do
     @o = KernelSpecs::InstanceClass.new
   end
diff --git a/spec/ruby/core/kernel/shared/sprintf.rb b/spec/ruby/core/kernel/shared/sprintf.rb
index 8defbfd665..1ad6f8a3cf 100644
--- a/spec/ruby/core/kernel/shared/sprintf.rb
+++ b/spec/ruby/core/kernel/shared/sprintf.rb
@@ -336,6 +336,12 @@ describe :kernel_sprintf, shared: true do
           @method.call("%s", obj)
         }.should raise_error(NoMethodError)
       end
+
+      it "formats a partial substring without including omitted characters" do
+        long_string = "aabbccddhelloddccbbaa"
+        sub_string = long_string[8, 5]
+        sprintf("%.#{1 * 3}s", sub_string).should == "hel"
+      end
     end
 
     describe "%" do