rubyx/test/risc/test_risc_value.rb

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require_relative "../helper"
class FakeBuilder
attr_reader :built
def add_code(ins)
@built = ins
end
end
module Risc
class TestRegisterValue < MiniTest::Test
def setup
Parfait.boot!
@r0 = RegisterValue.new(:r0 , :Message)
@r1 = RegisterValue.new(:r1 , :Space)
end
def test_r0
assert_equal :r0 , @r0.symbol
end
def test_load_space
move = @r0 << Parfait.object_space
assert_equal LoadConstant , move.class
end
def test_load_symbol
move = @r1 << :puts
assert_equal LoadConstant , move.class
end
def test_transfer
transfer = @r0 << @r1
assert_equal Transfer , transfer.class
end
def test_calls_builder
builder = FakeBuilder.new
@r0.builder = builder
@r0 << @r1
assert_equal Transfer , builder.built.class
end
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def test_index_op
message = @r0[:next_message]
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assert_equal RValue , message.class
assert_equal :next_message , message.index
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assert_equal @r0 , message.register
end
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def test_slot_to_reg
instr = @r0 << @r1[:next_message]
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assert_equal SlotToReg , instr.class
assert_equal @r1 , instr.array
assert_equal @r0 , instr.register
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assert_equal 3 , instr.index
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end
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def test_reg_to_slot
instr = @r1[:next_message] << @r0
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assert_equal RegToSlot , instr.class
assert_equal @r1 , instr.array
assert_equal @r0 , instr.register
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assert_equal 3 , instr.index
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end
end
end