rubyx/test/risc/position/test_instruction_position.rb
Torsten Ruger dae8e88b7a recurring bug, don't save label positions
labels are ethereal, no length, so they don’t get to occupy a position
2018-05-24 16:26:56 +03:00

52 lines
1.7 KiB
Ruby

require_relative "../helper"
module Risc
module Position
# tests that require a boot and test propagation
class TestPositionBasic < MiniTest::Test
def setup
Risc.machine.boot
@binary = Parfait::BinaryCode.new(1)
Position.set(@binary , 0 , Parfait.object_space.get_main)
@label = Label.new("hi","ho")
end
def test_set_instr
pos = Position.set( @label , 8 , @binary)
assert_equal InstructionPosition , pos.class
end
def test_ins_propagates
@label.set_next Arm::ArmMachine.b( @label)
Position.set( @label , 8 , @binary)
assert_equal 8 , Position.get(@label.next).at
end
def test_ins_propagates_again
second = Arm::ArmMachine.b( @label)
@label.set_next(second)
Position.set( @label , 8 , @binary)
Position.set(second , 12 , @binary)
Position.set( @label , 8 , @binary)
assert_equal 8 , Position.get(@label.next).at
end
def test_label_at
branch = Branch.new("b" , @label)
Position.set(@label , 8 , @binary)
Position.set(branch , 8 , @binary)
at_4 = Position.at(8)
assert_equal InstructionPosition , at_4.class
assert_equal Branch , at_4.instruction.class
end
def test_label_at_reverse
branch = Branch.new("b" , @label)
Position.set(branch , 8 , @binary)
Position.set(@label , 8 , @binary)
at_4 = Position.at(8)
assert_equal InstructionPosition , at_4.class
assert_equal Branch , at_4.instruction.class
end
def test_reset_false_type
assert_raises {Position.set(@label , 0 , @binary)}
end
end
end
end