1 files changed, 34 insertions, 0 deletions
diff --git a/spec/ffi/memorypointer_spec.rb b/spec/ffi/memorypointer_spec.rb
index c8d1b42..f29e2cb 100644
--- a/spec/ffi/memorypointer_spec.rb
+++ b/spec/ffi/memorypointer_spec.rb
@@ -28,6 +28,21 @@ describe "MemoryPointer#total" do
     expect(MemoryPointer.new(1024).total).to eq 1024
   end
 end
+describe "MemoryPointer#clear" do
+  it "should clear the memory" do
+    ptr = MemoryPointer.new(:long)
+    ptr.write_long 1234
+    expect(ptr.read_long).to eq(1234)
+    ptr.clear
+    expect(ptr.read_long).to eq(0)
+  end
+  it "should deny changes when frozen" do
+    skip "not yet supported on TruffleRuby" if RUBY_ENGINE == "truffleruby"
+    skip "not yet supported on JRuby" if RUBY_ENGINE == "jruby"
+    ptr = MemoryPointer.new(:long).freeze
+    expect{ ptr.clear }.to raise_error(RuntimeError, /memory write/)
+  end
+end
 describe "MemoryPointer#read_array_of_long" do
   it "foo" do
     ptr = MemoryPointer.new(:long, 1024)
@@ -76,3 +91,22 @@ describe "MemoryPointer return value" do
     expect(Stdio.fclose(fp)).to  eq 0 unless fp.nil? or fp.null?
   end
 end
+describe "#autorelease" do
+  it "should be true by default" do
+    expect(MemoryPointer.new(8).autorelease?).to be true
+  end
+
+  it "should return false when autorelease=(false)" do
+    ptr = MemoryPointer.new(8)
+    ptr.autorelease = false
+    expect(ptr.autorelease?).to be false
+    ptr.free
+  end
+
+  it "should deny changes when frozen" do
+    skip "not yet supported on TruffleRuby" if RUBY_ENGINE == "truffleruby"
+    skip "not yet supported on JRuby" if RUBY_ENGINE == "jruby"
+    ptr = MemoryPointer.new(8).freeze
+    expect{ ptr.autorelease = false }.to raise_error(FrozenError)
+  end
+end