1 files changed, 77 insertions, 0 deletions
diff --git a/spec/ruby/core/fiber/blocking_spec.rb b/spec/ruby/core/fiber/blocking_spec.rb
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+++ b/spec/ruby/core/fiber/blocking_spec.rb
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+require_relative '../../spec_helper'
+require_relative 'shared/blocking'
+
+require "fiber"
+
+describe "Fiber.blocking?" do
+  it_behaves_like :non_blocking_fiber, -> { Fiber.blocking? }
+
+  context "when fiber is blocking" do
+    context "root Fiber of the main thread" do
+      it "returns 1 for blocking: true" do
+        fiber = Fiber.new(blocking: true) { Fiber.blocking? }
+        blocking = fiber.resume
+
+        blocking.should == 1
+      end
+    end
+
+    context "root Fiber of a new thread" do
+      it "returns 1 for blocking: true" do
+        thread = Thread.new do
+          fiber = Fiber.new(blocking: true) { Fiber.blocking? }
+          blocking = fiber.resume
+
+          blocking.should == 1
+        end
+
+        thread.join
+      end
+    end
+  end
+end
+
+describe "Fiber#blocking?" do
+  it_behaves_like :non_blocking_fiber, -> { Fiber.current.blocking? }
+
+  context "when fiber is blocking" do
+    context "root Fiber of the main thread" do
+      it "returns true for blocking: true" do
+        fiber = Fiber.new(blocking: true) { Fiber.current.blocking? }
+        blocking = fiber.resume
+
+        blocking.should == true
+      end
+    end
+
+    context "root Fiber of a new thread" do
+      it "returns true for blocking: true" do
+        thread = Thread.new do
+          fiber = Fiber.new(blocking: true) { Fiber.current.blocking? }
+          blocking = fiber.resume
+
+          blocking.should == true
+        end
+
+        thread.join
+      end
+    end
+  end
+end
+
+ruby_version_is "3.2" do
+  describe "Fiber.blocking" do
+    context "when fiber is non-blocking" do
+      it "can become blocking" do
+        fiber = Fiber.new(blocking: false) do
+          Fiber.blocking do |f|
+            f.blocking? ? :blocking : :non_blocking
+          end
+        end
+
+        blocking = fiber.resume
+        blocking.should == :blocking
+      end
+    end
+  end
+end