k0kubun	2018-07-27 14:52:01 +0900 (Fri, 27 Jul 2018)

  New Revision: 64072

  https://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=64072

  Log:
    test_jit.rb: test unload_units

  Modified files:
    trunk/test/lib/jit_support.rb
    trunk/test/ruby/test_jit.rb
Index: test/ruby/test_jit.rb
===================================================================
--- test/ruby/test_jit.rb	(revision 64071)
+++ test/ruby/test_jit.rb	(revision 64072)
@@ -529,6 +529,29 @@ class TestJIT < Test::Unit::TestCase https://github.com/ruby/ruby/blob/trunk/test/ruby/test_jit.rb#L529
     assert_match(/^Successful MJIT finish$/, err)
   end
 
+  def test_unload_units
+    # MIN_CACHE_SIZE is 10
+    out, err = eval_with_jit("#{<<~"begin;"}\n#{<<~'end;'}", verbose: 1, min_calls: 1, max_cache: 10)
+    begin;
+      10.times do |i|
+        eval(<<-EOS)
+          def mjit#{i}
+            print #{i}
+          end
+          mjit#{i}
+        EOS
+      end
+    end;
+    assert_equal('0123456789', out)
+    errs = err.lines
+    assert_match(/\A#{JIT_SUCCESS_PREFIX}: block in <main>@-e:/, errs[0])
+    9.times do |i|
+      assert_match(/\A#{JIT_SUCCESS_PREFIX}: mjit#{i}@\(eval\):/, errs[i + 1])
+    end
+    assert_equal("Too many JIT code -- 1 units unloaded\n", errs[10])
+    assert_match(/\A#{JIT_SUCCESS_PREFIX}: mjit9@\(eval\):/, errs[11])
+  end
+
   def test_local_stack_on_exception
     assert_eval_with_jit("#{<<~"begin;"}\n#{<<~"end;"}", stdout: '3', success_count: 2)
     begin;
Index: test/lib/jit_support.rb
===================================================================
--- test/lib/jit_support.rb	(revision 64071)
+++ test/lib/jit_support.rb	(revision 64072)
@@ -28,8 +28,11 @@ module JITSupport https://github.com/ruby/ruby/blob/trunk/test/lib/jit_support.rb#L28
   end
 
   module_function
-  def eval_with_jit(env = nil, script, verbose: 0, min_calls: 5, save_temps: false, timeout: JIT_TIMEOUT)
-    args = ['--disable-gems', '--jit-wait', "--jit-verbose=#{verbose}", "--jit-min-calls=#{min_calls}"]
+  def eval_with_jit(env = nil, script, verbose: 0, min_calls: 5, save_temps: false, max_cache: 1000, timeout: JIT_TIMEOUT)
+    args = [
+      '--disable-gems', '--jit-wait', "--jit-verbose=#{verbose}",
+      "--jit-min-calls=#{min_calls}", "--jit-max-cache=#{max_cache}",
+    ]
     args << '--jit-save-temps' if save_temps
     args << '-e' << script
     args.unshift(env) if env

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