class TestExpression

Constants

E

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Public Instance Methods

test_encode() click to toggle source
# File tests/expression.rb, line 12
def test_encode
        assert_equal("\x04\00\\00\\00"", E[4].encode(:u32, :little).data)
end
test_numeric() click to toggle source
# File tests/expression.rb, line 16
def test_numeric
        assert_equal(5, E[4, :+, 1].reduce)
end
test_pattern() click to toggle source
# File tests/expression.rb, line 45
def test_pattern
        pat = E[:a, :+, [:b, :&, 0xffff]].match(E['a', :|, 'b'], 'a', 'b')
        assert_equal(false, pat)

        pat = E[:a, :+, [:b, :&, 0xffff]].match(E['a', :+, 'b'], 'a', 'b')
        assert_equal(:a, pat['a'])
        p2 = pat['b'].match(E[:a, :b, :c], :a, :b, :c)
        assert_equal(0xffff, p2[:c])
        assert_equal(:&, p2[:b])
end
test_reduce() click to toggle source
# File tests/expression.rb, line 20
def test_reduce
        assert_equal(0, E[:a, :-, :a].reduce)
        assert_equal(0, E[:a, :^, :a].reduce)

        assert_equal(E[:a, :^, 3], E[[1, :^, :a], :^, 2].reduce)
        assert_equal(E[:a], E[[:b, :^, :a], :^, :b].reduce)

        assert_equal(E[:a, :+, 2], E[:b, :+, [:a, :-, [4, :+, [:b, :-, 6]]]].reduce)
        assert_equal(E[:a, :&, 0xff00], E[[[:a, :>>, 8], :&, 0xff], :<<, 8].reduce)

        assert_equal(E[[:a, :>>, 1], :&, 0xff0], E[[[:a, :>>, 5], :&, 0xff], :<<, 4].reduce)

        assert_equal(0, E[[:a, :&, 0xff00], :&, [:b, :&, 0xff]].reduce)
        assert_equal(0, E[[:a, :&, 0xff], :>>, 8].reduce)

        assert_equal(E[:a, :&, 0xffff], E[[:a, :&, 0x3333], :|, [[:a, :&, 0x8888], :+, [:a, :&, 0x4444]]].reduce)

        assert_equal(E[:a, :&, 0xff], E[[:a, :|, [:b, :&, 0xff00]], :&, 0xff].reduce)

        assert_equal(1, E[[2, :>, 1], :'||', [:a, :<=, :b]].reduce)
        assert_equal(0, E[[:a, :>, :b], :'&&', [1, :>, 2]].reduce)

        assert_equal(E[:a, :>, :b], E[[:'!', [:a, :<=, :b]], :==, 1].reduce)
end