1 files changed, 19 insertions, 19 deletions
diff --git a/spec/ruby/core/string/to_c_spec.rb b/spec/ruby/core/string/to_c_spec.rb
index 9d24f1f56c..9cd0ed4401 100644
--- a/spec/ruby/core/string/to_c_spec.rb
+++ b/spec/ruby/core/string/to_c_spec.rb
@@ -13,18 +13,20 @@ describe "String#to_c" do
 
   it "ignores trailing garbage" do
     '79+4iruby'.to_c.should == Complex(79, 4)
-    ruby_bug "[Bug #19087]", ""..."3.2" do
-      '7__9+4__0i'.to_c.should == Complex(7, 0)
-    end
+    '7__9+4__0i'.to_c.should == Complex(7, 0)
   end
 
-  it "understands Float::INFINITY" do
-    'Infinity'.to_c.should == Complex(0, 1)
-    '-Infinity'.to_c.should == Complex(0, -1)
-  end
+  context "it treats special float value strings as characters" do
+    it "parses any string that starts with 'I' as 1i" do
+      'Infinity'.to_c.should == Complex(0, 1)
+      '-Infinity'.to_c.should == Complex(0, -1)
+      'Insecure'.to_c.should == Complex(0, 1)
+      '-Insecure'.to_c.should == Complex(0, -1)
+    end
 
-  it "understands Float::NAN" do
-    'NaN'.to_c.should == Complex(0, 0)
+    it "does not parse any numeric information in 'NaN'" do
+      'NaN'.to_c.should == Complex(0, 0)
+    end
   end
 
   it "allows null-byte" do
@@ -36,18 +38,16 @@ describe "String#to_c" do
   it "raises Encoding::CompatibilityError if String is in not ASCII-compatible encoding" do
     -> {
       '79+4i'.encode("UTF-16").to_c
-    }.should raise_error(Encoding::CompatibilityError, "ASCII incompatible encoding: UTF-16")
+    }.should.raise(Encoding::CompatibilityError, "ASCII incompatible encoding: UTF-16")
   end
 
-  ruby_version_is "3.2" do
-    it "treats a sequence of underscores as an end of Complex string" do
-      "5+3_1i".to_c.should == Complex(5, 31)
-      "5+3__1i".to_c.should == Complex(5)
-      "5+3___1i".to_c.should == Complex(5)
+  it "treats a sequence of underscores as an end of Complex string" do
+    "5+3_1i".to_c.should == Complex(5, 31)
+    "5+3__1i".to_c.should == Complex(5)
+    "5+3___1i".to_c.should == Complex(5)
 
-      "12_3".to_c.should == Complex(123)
-      "12__3".to_c.should == Complex(12)
-      "12___3".to_c.should == Complex(12)
-    end
+    "12_3".to_c.should == Complex(123)
+    "12__3".to_c.should == Complex(12)
+    "12___3".to_c.should == Complex(12)
   end
 end