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   1 """
   2 Tests std::queue functionality.
   3 """
   4
   5 from lldbsuite.test.decorators import *
   6 from lldbsuite.test.lldbtest import *
   7 from lldbsuite.test import lldbutil
   8
   9 class TestQueue(TestBase):
  10
  11     mydir = TestBase.compute_mydir(__file__)
  12
  13     @add_test_categories(["libc++"])
  14     @skipIf(compiler=no_match("clang"))
  15     def test(self):
  16         self.build()
  17
  18         lldbutil.run_to_source_breakpoint(self,
  19             "// Set break point at this line.", lldb.SBFileSpec("main.cpp"))
  20
  21         self.runCmd("settings set target.import-std-module true")
  22
  23         # Test std::queue functionality with a std::deque.
  24         self.expect("expr q_deque.pop()")
  25         self.expect("expr q_deque.push({4})")
  26         self.expect("expr (size_t)q_deque.size()", substrs=['(size_t) $0 = 1'])
  27         self.expect("expr (int)q_deque.front().i", substrs=['(int) $1 = 4'])
  28         self.expect("expr (int)q_deque.back().i", substrs=['(int) $2 = 4'])
  29         self.expect("expr q_deque.empty()", substrs=['(bool) $3 = false'])
  30         self.expect("expr q_deque.pop()")
  31         self.expect("expr q_deque.emplace(5)")
  32         self.expect("expr (int)q_deque.front().i", substrs=['(int) $4 = 5'])
  33
  34         # Test std::queue functionality with a std::list.
  35         self.expect("expr q_list.pop()")
  36         self.expect("expr q_list.push({4})")
  37         self.expect("expr (size_t)q_list.size()", substrs=['(size_t) $5 = 1'])
  38         self.expect("expr (int)q_list.front().i", substrs=['(int) $6 = 4'])
  39         self.expect("expr (int)q_list.back().i", substrs=['(int) $7 = 4'])
  40         self.expect("expr q_list.empty()", substrs=['(bool) $8 = false'])
  41         self.expect("expr q_list.pop()")
  42         self.expect("expr q_list.emplace(5)")
  43         self.expect("expr (int)q_list.front().i", substrs=['(int) $9 = 5'])