spec/unit/system/page_spec.rb in tty-pager-0.4.0 vs spec/unit/system/page_spec.rb in tty-pager-0.5.0

@@ -8,12 +8,18 @@
     text     = "I try all things, I achieve what I can.\n"
     pager    = described_class.new(output: output, input: input)
     read_io  = spy
     write_io = spy
 
+    if !pager.respond_to?(:fork)
+      described_class.send :define_method, :fork, lambda { |*args|
+        yield if block_given?
+      }
+    end
+
     allow(IO).to receive(:pipe).and_return([read_io, write_io])
 
-    allow(Kernel).to receive(:fork) do |&block|
+    allow(pager).to receive(:fork) do |&block|
       allow(input).to receive(:reopen)
       allow(IO).to receive(:select)
       allow(pager).to receive(:pager_command).and_return('less')
       allow(pager).to receive(:exec)
       block.call