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import os
import sys

def get_test_dir():
    return os.path.abspath(os.path.join(os.path.dirname(__file__), 'files'))

def test_SrvSpec():
    from genmsg import MsgSpec, SrvSpec

    types = ['int32']
    names = ['a']
    constants = []
    text = 'int32 a'
    msg_a = MsgSpec(types, names, constants, text, 'a/Int')
    assert msg_a.full_name == 'a/Int'
    assert msg_a.package == 'a'
    assert msg_a.short_name == 'Int'    

    types = ['int64']
    names = ['b']
    constants = []
    text = 'int64 b'
    msg_b = MsgSpec(types, names, constants, text, 'b/Int')
    assert msg_b.full_name == 'b/Int'
    assert msg_b.package == 'b'
    assert msg_b.short_name == 'Int'    

    text = msg_a.text + '\n---\n' + msg_b.text
    spec = SrvSpec(msg_a, msg_b, text)
    assert msg_a == spec.request
    assert msg_b == spec.response
    assert text == spec.text
    assert '' == spec.full_name
    assert '' == spec.short_name
    assert '' == spec.package
        
    # tripwire
    assert repr(spec)
    assert str(spec)

    # exercise eq
    assert spec != 'spec'
    assert not spec == 'spec'
        
    spec2 = SrvSpec(msg_a, msg_b, text)
    assert spec == spec2
    assert not spec != spec2
        
    # - full_name
    spec2.full_name = 'something'
    assert spec != spec2
    spec2.full_name = ''        
    assert spec == spec2

    # - short_name
    spec2.short_name = 'something'
    assert spec != spec2
    spec2.short_name = ''        
    assert spec == spec2
    # - package
    spec2.package = 'something'
    assert spec != spec2
    spec2.package = ''        
    assert spec == spec2