1 files changed, 53 insertions, 0 deletions
diff --git a/spec/ruby/optional/capi/data_spec.rb b/spec/ruby/optional/capi/data_spec.rb
new file mode 100644
index 0000000000..af1da10f48
--- /dev/null
+++ b/spec/ruby/optional/capi/data_spec.rb
@@ -0,0 +1,53 @@
+require_relative 'spec_helper'
+ruby_version_is ""..."3.4" do
+  load_extension("data")
+
+  describe "CApiAllocSpecs (a class with an alloc func defined)" do
+    it "calls the alloc func" do
+      @s = CApiAllocSpecs.new
+      @s.wrapped_data.should == 42 # not defined in initialize
+    end
+  end
+
+  describe "CApiWrappedStruct" do
+    before :each do
+      @s = CApiWrappedStructSpecs.new
+    end
+
+    it "wraps with Data_Wrap_Struct and Data_Get_Struct returns data" do
+      a = @s.wrap_struct(1024)
+      @s.get_struct(a).should == 1024
+    end
+
+    describe "RDATA()" do
+      it "returns the struct data" do
+        a = @s.wrap_struct(1024)
+        @s.get_struct_rdata(a).should == 1024
+      end
+
+      it "allows changing the wrapped struct" do
+        a = @s.wrap_struct(1024)
+        @s.change_struct(a, 100)
+        @s.get_struct(a).should == 100
+      end
+
+      it "raises a TypeError if the object does not wrap a struct" do
+        -> { @s.get_struct(Object.new) }.should.raise(TypeError)
+      end
+    end
+
+    describe "rb_check_type" do
+      it "does not raise an exception when checking data objects" do
+        a = @s.wrap_struct(1024)
+        @s.rb_check_type(a, a).should == true
+      end
+    end
+
+    describe "DATA_PTR" do
+      it "returns the struct data" do
+        a = @s.wrap_struct(1024)
+        @s.get_struct_data_ptr(a).should == 1024
+      end
+    end
+  end
+end