Update to ruby/spec@4bb0f25

* Specs added by TruffleRuby.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@63654 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 60 insertions, 8 deletions

diff --git a/spec/ruby/optional/capi/string_spec.rb b/spec/ruby/optional/capi/string_spec.rb
index c042d5edad..cc6ac2e0cb 100644
--- a/spec/ruby/optional/capi/string_spec.rb
+++ b/spec/ruby/optional/capi/string_spec.rb
@@ -48,14 +48,43 @@ describe "C-API String function" do
       @s.rb_str_set_len(@str, 8).should == "abcde\x00gh"
     end
 
+    it "updates the byte size and character size" do
+      @s.rb_str_set_len(@str, 4)
+      @str.bytesize.should == 4
+      @str.size.should == 4
+      @str.should == "abcd"
+    end
+
     it "updates the string's attributes visible in C code" do
       @s.rb_str_set_len_RSTRING_LEN(@str, 4).should == 4
     end
+
+    it "can reveal characters written from C with RSTRING_PTR" do
+      @s.rb_str_set_len(@str, 1)
+      @str.should == "a"
+
+      @str.force_encoding(Encoding::UTF_8)
+      @s.RSTRING_PTR_set(@str, 1, 'B'.ord)
+      @s.RSTRING_PTR_set(@str, 2, 'C'.ord)
+      @s.rb_str_set_len(@str, 3)
+
+      @str.bytesize.should == 3
+      @str.should == "aBC"
+    end
   end
 
   describe "rb_str_buf_new" do
     it "returns the equivalent of an empty string" do
-      @s.rb_str_buf_new(10, nil).should == ""
+      buf = @s.rb_str_buf_new(10, nil)
+      buf.should == ""
+      buf.bytesize.should == 0
+      buf.size.should == 0
+      @s.RSTRING_LEN(buf).should == 0
+    end
+
+    it "returns a string with the given capacity" do
+      buf = @s.rb_str_buf_new(256, nil)
+      @s.rb_str_capacity(buf).should == 256
     end
 
     it "returns a string that can be appended to" do
@@ -83,6 +112,19 @@ describe "C-API String function" do
       str[0, 6].should == "abcd\x00f"
       @s.RSTRING_LEN(str).should == 8
     end
+
+    it "can be used as a general buffer and reveal characters with rb_str_set_len" do
+      str = @s.rb_str_buf_new(10, "abcdef")
+
+      @s.RSTRING_PTR_set(str, 0, 195)
+      @s.RSTRING_PTR_set(str, 1, 169)
+      @s.rb_str_set_len(str, 2)
+
+      str.force_encoding(Encoding::UTF_8)
+      str.bytesize.should == 2
+      str.size.should == 1
+      str.should == "é"
+    end
   end
 
   describe "rb_str_buf_new2" do
@@ -93,6 +135,10 @@ describe "C-API String function" do
   end
 
   describe "rb_str_new" do
+    it "creates a new String with ASCII-8BIT Encoding" do
+      @s.rb_str_new("", 0).encoding.should == Encoding::ASCII_8BIT
+    end
+
     it "returns a new string object from a char buffer of len characters" do
       @s.rb_str_new("hello", 3).should == "hel"
     end
@@ -101,6 +147,11 @@ describe "C-API String function" do
       @s.rb_str_new("hello", 0).should == ""
     end
 
+    it "copy length bytes and does not stop at the first \\0 byte" do
+      @s.rb_str_new("he\x00llo", 6).should == "he\x00llo"
+      @s.rb_str_new_native("he\x00llo", 6).should == "he\x00llo"
+    end
+
     it "returns a string from an offset char buffer" do
       @s.rb_str_new_offset("hello", 1, 3).should == "ell"
     end
@@ -110,12 +161,6 @@ describe "C-API String function" do
     it_behaves_like :rb_str_new2, :rb_str_new2
   end
 
-  describe "rb_str_new" do
-    it "creates a new String with ASCII-8BIT Encoding" do
-      @s.rb_str_new("", 0).encoding.should == Encoding::ASCII_8BIT
-    end
-  end
-
   describe "rb_str_new_cstr" do
     it_behaves_like :rb_str_new2, :rb_str_new_cstr
   end
@@ -402,7 +447,7 @@ describe "C-API String function" do
 
     it "allows changing the characters in the string" do
       str = "abc"
-      @s.RSTRING_PTR_assign(str, 65)
+      @s.RSTRING_PTR_assign(str, 'A'.ord)
       str.should == "AAA"
     end
 
@@ -417,6 +462,13 @@ describe "C-API String function" do
       ret.should == str
     end
 
+    it "reflects changes from native memory and from String#setbyte in bounds" do
+      str = "abc"
+      from_rstring_ptr = @s.RSTRING_PTR_after_yield(str) { str.setbyte(1, 'B'.ord) }
+      from_rstring_ptr.should == "1B2"
+      str.should == "1B2"
+    end
+
     it "returns a pointer to the contents of encoded pointer-sized string" do
       s = "70パク".
         encode(Encoding::UTF_16LE).