first commit

nghttp2/third-party/mruby/mrbgems/mruby-eval/test/eval.rb

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+assert('Kernel.eval', '15.3.1.2.3') do
+  assert_equal(10) { Kernel.eval '1 * 10' }
+  assert_equal('aaa') { Kernel.eval "'a' * 3" }
+  assert_equal(10) {
+    a = 10
+    Kernel.eval "a"
+  }
+  assert_equal(20) {
+    a = 10
+    Kernel.eval "a = 20"
+    a
+  }
+  assert_equal(15) {
+    c = 5
+    lambda {
+      a = 10
+      Kernel.eval "c = a + c"
+    }.call
+    c
+  }
+  assert_equal(5) {
+    c = 5
+    lambda {
+      Kernel.eval 'lambda { c }.call'
+    }.call
+  }
+  assert_equal(15) {
+    c = 5
+    lambda {
+      a = 10
+      Kernel.eval 'lambda { c = a + c }.call'
+    }.call
+    c
+  }
+  assert_equal(2) {
+    a = 10
+    Kernel.eval 'def f(a); b=a+1; end'
+    f(1)
+  }
+end
+
+assert('Kernel#eval', '15.3.1.3.12') do
+  assert_equal(10) { eval '1 * 10' }
+end
+
+assert('rest arguments of eval') do
+  assert_raise(ArgumentError) { Kernel.eval('0', 0, 'test', 0) }
+  assert_equal ['test', 'test.rb', 10] do
+    Kernel.eval('[\'test\', __FILE__, __LINE__]', nil, 'test.rb', 10)
+  end
+end
+
+assert 'eval syntax error' do
+  assert_raise(SyntaxError) do
+    eval 'p "test'
+  end
+end
+
+assert('String instance_eval') do
+  obj = Object.new
+  obj.instance_eval{ @test = 'test' }
+  assert_raise(ArgumentError) { obj.instance_eval(0) { } }
+  assert_raise(ArgumentError) { obj.instance_eval('0', 'test', 0, 'test') }
+  assert_equal(['test.rb', 10]) { obj.instance_eval('[__FILE__, __LINE__]', 'test.rb', 10)}
+  assert_equal('test') { obj.instance_eval('@test') }
+  assert_equal('test') { obj.instance_eval { @test } }
+  o = Object.new
+  assert_equal ['', o, o], o.instance_eval("[''].each { |s| break [s, o, self] }")
+end
+
+assert('Kernel.#eval(string) context') do
+  class TestEvalConstScope
+    EVAL_CONST_CLASS = 'class'
+    def const_string
+      eval 'EVAL_CONST_CLASS'
+    end
+  end
+  obj = TestEvalConstScope.new
+  assert_raise(NameError) { eval 'EVAL_CONST_CLASS' }
+  assert_equal('class') { obj.const_string }
+end
+
+assert('BasicObject#instance_eval with begin-rescue-ensure execution order') do
+  class HellRaiser
+    def raise_hell
+      order = [:enter_raise_hell]
+      begin
+        order.push :begin
+        self.instance_eval("raise 'error'")
+      rescue
+        order.push :rescue
+      ensure
+        order.push :ensure
+      end
+      order
+    end
+  end
+
+  hell_raiser = HellRaiser.new
+  assert_equal([:enter_raise_hell, :begin, :rescue, :ensure], hell_raiser.raise_hell)
+end
+
+assert('BasicObject#instance_eval to define singleton methods Issue #3141') do
+  foo_class = Class.new do
+    def bar(x)
+      instance_eval "def baz; #{x}; end"
+    end
+  end
+
+  f1 = foo_class.new
+  f2 = foo_class.new
+  f1.bar 1
+  f2.bar 2
+  assert_equal(1){f1.baz}
+  assert_equal(2){f2.baz}
+end
+
+assert('Kernel.#eval(string) Issue #4021') do
+  assert_equal('FOO') { (eval <<'EOS').call }
+foo = "FOO"
+Proc.new { foo }
+EOS
+  assert_equal('FOO') {
+    def do_eval(code)
+      eval(code)
+    end
+    do_eval(<<'EOS').call
+foo = "FOO"
+Proc.new { foo }
+EOS
+  }
+end
+
+assert('Calling the same method as the variable name') do
+  hoge = Object.new
+  def hoge.fuga
+    "Hit!"
+  end
+  assert_equal("Hit!") { fuga = "Miss!"; eval "hoge.fuga" }
+  assert_equal("Hit!") { fuga = "Miss!"; -> { eval "hoge.fuga" }.call }
+  assert_equal("Hit!") { -> { fuga = "Miss!"; eval "hoge.fuga" }.call }
+  assert_equal("Hit!") { fuga = "Miss!"; eval("-> { hoge.fuga }").call }
+end
+
+assert('Access numbered parameter from eval') do
+  hoge = Object.new
+  def hoge.fuga(a, &b)
+    b.call(a)
+  end
+  assert_equal(6) {
+    hoge.fuga(3) { _1 + eval("_1") }
+  }
+end