#!/usr/bin/env ruby
require "test/unit"

$: << File.expand_path(File.dirname(__FILE__)) + '/../ext'
$: << File.expand_path(File.dirname(__FILE__)) + '/../lib'
require "ruby_debug"

# Test of C extension ruby_debug.so
class TestRubyDebug < Test::Unit::TestCase
  include Debugger

  # test current_context
  def test_current_context
    assert_equal(false, Debugger.started?, 
                 "debugger should not initially be started.")
    Debugger.start
    assert(Debugger.started?, 
           "debugger should now be started.")
    assert_equal(19, Debugger.current_context.frame_line)
    assert_equal(nil, Debugger.current_context.frame_args_info,
                 "no frame args info.")
    assert_equal(Debugger.current_context.frame_file, 
                 Debugger.current_context.frame_file(0))
    assert_equal("test-ruby-debug-base.rb",
                 File.basename(Debugger.current_context.frame_file))
    assert_raises(ArgumentError) {Debugger.current_context.frame_file(1, 2)}
    assert_raises(ArgumentError) {Debugger.current_context.frame_file(10)}
    assert_equal(1, Debugger.current_context.stack_size)
    assert_equal(TestRubyDebug, Debugger.current_context.frame_class)
    assert_equal(false, Debugger.current_context.dead?, "Not dead yet!")
    Debugger.stop
    assert_equal(false, Debugger.started?, 
                 "Debugger should no longer be started.")
  end

  # Test initial variables and setting/getting state.
  def test_debugger_base
    assert_equal(false, Debugger.started?, 
                 "Debugger should not initially be started.")
    Debugger.start
    assert(Debugger.started?, 
           "Debugger should now be started.")
    assert_equal(false, Debugger.debug,
                 "Debug variable should not be set.")
    assert_equal(false, Debugger.post_mortem?,
                 "Post mortem debugging should not be set.")
    a = Debugger.contexts
    assert_equal(1, a.size, 
                 "There should only be one context.")
    assert_equal(Array, a.class, 
                 "Context should be an array.")
    Debugger.stop
    assert_equal(false, Debugger.started?, 
                 "debugger should no longer be started.")
  end

  # Test breakpoint handling
  def test_breakpoints
    Debugger.start
    assert_equal(0, Debugger.breakpoints.size,
                 "There should not be any breakpoints set.")
    brk = Debugger.add_breakpoint(__FILE__, 1)
    assert_equal(Debugger::Breakpoint, brk.class,
                 "Breakpoint should have been set and returned.")
    assert_equal(1, Debugger.breakpoints.size,
                 "There should now be one breakpoint set.")
    Debugger.remove_breakpoint(0)
    assert_equal(1, Debugger.breakpoints.size,
                 "There should still be one breakpoint set.")
    Debugger.remove_breakpoint(1)
    assert_equal(0, Debugger.breakpoints.size,
                 "There should no longer be any breakpoints set.")
    Debugger.stop
  end
end