#!/usr/bin/env ruby
require 'test/unit'
require_relative '../../app/brkptmgr'
require_relative '../../app/breakpoint'
require 'thread_frame'

class TestLibAppBrkptMgr < Test::Unit::TestCase

  def setup
    @brkpts = BreakpointMgr.new
  end

  def test_basic
    tf = RubyVM::ThreadFrame.current
    iseq = tf.iseq
    offsets = iseq.offsetlines.keys
    offset  = offsets[0]
    assert_equal(0, @brkpts.size)
    b1 = @brkpts.add(iseq, offset)
    assert_equal(b1, @brkpts.find(iseq, offset, tf.binding))
    assert_equal(1, @brkpts.size)
    assert_equal(b1, @brkpts.find(iseq, offset, tf.binding))
    assert_equal(b1, @brkpts.delete(b1.id))
    assert_equal(0, @brkpts.size)

    # Try adding via << rather than .add
    b2 = @brkpts << Trepanning::Breakpoint.new(iseq, offsets[1], :temp => true)

    assert_equal(nil, @brkpts.find(iseq, offset, tf.binding))
    @brkpts.reset
    assert_equal(0, @brkpts.size)
  end

  def test_multiple_brkpt_per_offset
    tf = RubyVM::ThreadFrame.current
    iseq = tf.iseq
    offsets = iseq.offsetlines.keys
    offset  = offsets[0]
    b1 = @brkpts.add(iseq, offset)
    b2 = @brkpts.add(iseq, offset)
    assert_equal(2, @brkpts.size)
    assert_equal(1, @brkpts.set.size, 
                 'Two breakpoints but only one iseq/offset')
    @brkpts.delete_by_brkpt(b1)
    assert_equal(1, @brkpts.size, 
                 'One breakpoint after 2nd breakpoint deleted')
    assert_equal(1, @brkpts.set.size, 
                 'Two breakpoints, but only one iseq/offset')
    @brkpts.delete_by_brkpt(b2)
    assert_equal(0, @brkpts.size, 
                 'Both breakpoints deleted')
    assert_equal(0, @brkpts.set.size, 
                 'Second breakpoint delete should delete iseq/offset')
  end

end