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72 lines
3.7 KiB
72 lines
3.7 KiB
2 months ago
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# License: Apache 2.0. See LICENSE file in root directory.
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# Copyright(c) 2022 Intel Corporation. All Rights Reserved.
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#test:donotrun:!dds
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from rspy import log, test
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import pyrealdds as dds
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with test.closure( 'default ctor' ):
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test.check_equal( dds.time().seconds, 0 )
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test.check_equal( dds.time().nanosec, 0 )
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with test.closure( 'seconds, nanoseconds' ):
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test.check_equal( dds.time( 1, 2 ).seconds, 1 )
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test.check_equal( dds.time( 1, 2 ).nanosec, 2 )
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with test.closure( 'limits' ):
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test.check_throws( lambda: dds.time( 0xffffffff, 0 ), TypeError )
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test.check_throws( lambda: dds.time( 0, 0x100000000 ), TypeError )
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test.check_throws( lambda: repr( dds.time( 0, 0xffffffff )), ValueError ) # nsec > 9 digits don't make sense...
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test.check_throws( lambda: repr( dds.time( 0, 1000000000 )), ValueError )
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dds.time( 0, 0xffffffff ) # invalid, but not checked on construction!
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dds.time( 0, 999999999 ) # valid
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# infinite time is 0x7fffffff, 0xffffffff, but is not represented yet
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test.check_throws( lambda: repr( dds.time( 0x7fffffff, 0xffffffff )), ValueError )
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with test.closure( 'nanoseconds' ):
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test.check_equal( dds.time().to_ns(), 0 )
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test.check_equal( dds.time( 0 ).to_ns(), 0 ) # nsec
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test.check_equal( dds.time( 1 ).to_ns(), 1 )
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test.check_equal( dds.time( 1, 2 ).to_ns(), 1000000002 ) # sec, nsec
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with test.closure( 'double is inexact!' ):
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test.check_equal( dds.time().to_double(), 0. )
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test.check_equal( dds.time( 1.1 ).to_double(), 1.1 )
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test.check_equal( dds.time( 1.1 ).to_ns(), 1100000000 ) # double is ~sec.nsec
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test.check_equal( dds.time( 1.001 ).to_ns(), 1000999999 ) # but inexact!
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test.check_equal( dds.time( 1682486031.2499189 ).to_ns(), 1682486031249918937 ) # !?
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test.check_equal( dds.time( 1682486031.2499189 ).to_double(), 1682486031.249919 ) # !?
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with test.closure( 'negatives do not work!' ):
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# NOTE:
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# RTPS, and therefore DDS, time is using the NTP representation, according to RTPS 9.3.2.2.
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# This means it's not really meant to convey negative values: in fact, RTPS defines Time_t
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# as unsigned; it's Duration_t that's signed. Even then, only the seconds can be negative,
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# so -1.1 seconds should really be encoded as -2 seconds, plus 0.9, or -2.9!
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test.check_equal( dds.time( -1, 0 ).to_ns(), -1000000000 ) # -1 seconds is fairly simple
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test.check_equal( repr( dds.time( -1, 0 )), '-1.0' )
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test.check_throws( lambda: dds.time( 0, -1 ), TypeError ) # nanosec is unsigned
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test.check_equal( repr( dds.time( -1 )), '-1.999999999' ) # ?!
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test.check_equal( dds.time( -0, 1 ).to_ns(), 1 ) # doesn't work - this is 1ns!
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test.check_equal( dds.time( -1, 1 ).to_ns(), -999999999 ) # nope
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test.check_equal( dds.time( -1, 999999999 ).to_ns(), -1 ) # yep!
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test.check_equal( repr( dds.time( -1, 999999999 )), '-1.999999999' ) # Oh boy...
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with test.closure( 'operators' ):
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test.check_equal( dds.time.from_double( 1.1 ), dds.time( 1.1 ))
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test.check_false( dds.time.from_double( 1.1 ) == 1.1 )
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test.check( dds.time.from_double( 1.1 ) != 1.1 )
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test.check_false( dds.time.from_double( 1.1 ) != dds.time( 1.1 ))
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test.check_throws( lambda: dds.time( 1 ) < dds.time( 2 ), TypeError ) # '<' not supported
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test.check_throws( lambda: dds.time( 2 ) > dds.time( 2 ), TypeError )
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with test.closure( 'string repr' ):
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test.check_throws( lambda: dds.time( '0.0' ), TypeError ) # no string parsing
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test.check_equal( str( dds.time() ), '0.0' ) # repr is same as to_double()
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test.check_equal( repr( dds.time() ), '0.0' )
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test.check_equal( str( dds.time( 1.1 )), '1.1' )
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test.print_results_and_exit()
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