Ichthyostega
8ffab2f002
Mostly, std::regexp can be used as a drop-in replacement. Note: unfortunately ECMA regexps do not support lookbehind assertions. This lookbehind is necesary here because we want to allow parsing values from strings with additional content, which means we need explicitly to exclude mismatches due to invalid syntax. We can work around that issue like "either line start, or *not* one of these characters. Alternatively we could consider to make the match more rigid, i.e we would require the string to conain *only* the timecode spec to be parsed.
220 lines
8 KiB
C++
220 lines
8 KiB
C++
/*
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TimeParsing(Test) - handling textual time(code) specifications
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Copyright (C) Lumiera.org
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2011, Hermann Vosseler <Ichthyostega@web.de>
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation; either version 2 of
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the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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* *****************************************************/
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/** @file time-parsing-test.cpp
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** unit test \ref TimeParsing_test
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*/
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#include "lib/test/run.hpp"
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#include "lib/test/test-helper.hpp"
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#include "steam/asset/meta/time-grid.hpp"
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#include "lib/time/quantiser.hpp"
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#include "lib/time/timecode.hpp"
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#include "lib/symbol.hpp"
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#include "lib/util.hpp"
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using lib::Symbol;
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using util::cStr;
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namespace lib {
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namespace time{
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namespace test{
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using steam::asset::meta::TimeGrid;
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using format::LERR_(INVALID_TIMECODE);
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namespace { // Helper for writing test cases
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Symbol DEFAULT_GRID = "pal0";
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Symbol OFFSET_GRID = "pal10";
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/**
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* Expression builder
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* for writing time value parsing tests
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*/
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template<class FMT>
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class Parsing
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{
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string const& timeSpec_;
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PQuant grid_;
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public:
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Parsing (string const& toParse, Symbol gridID =DEFAULT_GRID)
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: timeSpec_(toParse)
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, grid_(Quantiser::retrieve(gridID))
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{ }
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void
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should_yield (TimeValue const& expected)
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{
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TimeValue parsed = FMT::parse (timeSpec_, *grid_);
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CHECK (parsed == expected, "parsing '%s' resulted in %s instead of %s"
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, cStr(timeSpec_)
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, cStr(Time(parsed))
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, cStr(Time(expected)));
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}
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void
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should_yield (FSecs const& expectedSecs)
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{
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should_yield (Time (expectedSecs));
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}
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void
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should_fail ()
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{
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VERIFY_ERROR (INVALID_TIMECODE, FMT::parse (timeSpec_, *grid_));
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}
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};
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}//(End)Test case helper
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/****************************************************//**
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* @test parse textual time specifications given
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* in the supported timecode formats
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*/
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class TimeParsing_test : public Test
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{
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virtual void
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run (Arg)
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{
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defineTestTimeGrids();
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parseFrames();
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parseFractionalSeconds();
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/////////////////////////////////////////////TODO
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// parseHms();
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// parseSmpte();
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// parseDropFrame();
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}
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void
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defineTestTimeGrids()
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{
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TimeGrid::build(DEFAULT_GRID, FrameRate::PAL);
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TimeGrid::build(OFFSET_GRID, FrameRate::PAL, Time(0,10));
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}
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void
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parseFrames ()
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{
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Parsing<format::Frames> ("0#") .should_yield (0);
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Parsing<format::Frames> ("1#") .should_yield (FSecs(1,25) );
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Parsing<format::Frames> ("-1#") .should_yield (FSecs(-1,25) );
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Parsing<format::Frames> ("-0#") .should_yield (0);
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Parsing<format::Frames> ("25#") .should_yield (1 );
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Parsing<format::Frames> ("26#") .should_yield (Time(40,1) );
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Parsing<format::Frames> ("25#", OFFSET_GRID).should_yield (1+10 );
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Parsing<format::Frames> ("-1#", OFFSET_GRID).should_yield (10 - FSecs(1,25));
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Parsing<format::Frames> ("23") .should_fail();
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Parsing<format::Frames> ("23 #") .should_fail();
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Parsing<format::Frames> ("23.#") .should_fail();
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Parsing<format::Frames> ("23x#") .should_fail();
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Parsing<format::Frames> ("xxx25#xxx") .should_yield (1);
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Parsing<format::Frames> ("12 25#") .should_yield (1);
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Parsing<format::Frames> ("12 25# 33#") .should_yield (1); // note pitfall: the first valid number is used
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Parsing<format::Frames> ("12 25# \n 33#") .should_yield (1);
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Parsing<format::Frames> ("12\n 25# \n 33#") .should_yield (1);
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Parsing<format::Frames> ("12.25#") .should_fail(); // rejected because of leading dot (ambiguity)
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}
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void
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parseFractionalSeconds ()
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{
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Parsing<format::Seconds> ("0sec") .should_yield (0);
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Parsing<format::Seconds> ("1sec") .should_yield (1);
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Parsing<format::Seconds> ("10sec") .should_yield (10);
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Parsing<format::Seconds> ("100sec") .should_yield (100);
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Parsing<format::Seconds> ("-10sec") .should_yield (-10);
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Parsing<format::Seconds> ("-0sec") .should_yield (0);
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Parsing<format::Seconds> ("1/2sec") .should_yield (Time(500,0) );
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Parsing<format::Seconds> ("1/25sec") .should_yield (Time( 40,0) );
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Parsing<format::Seconds> ("1/250sec") .should_yield (Time( 4,0) ); // no quantisation involved in parsing
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Parsing<format::Seconds> ("1/250sec", OFFSET_GRID).should_yield (Time(4,10)); // ...but the origin of the grid is used
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Parsing<format::Seconds> ("10/2sec") .should_yield (5);
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Parsing<format::Seconds> ("1000/200sec") .should_yield (5);
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Parsing<format::Seconds> ("-10/2sec") .should_yield (-5);
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Parsing<format::Seconds> ("10/-2sec") .should_fail(); // only leading sign allowed (ambiguity)
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Parsing<format::Seconds> ("1+1/2sec") .should_yield (Time(500,1) );
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Parsing<format::Seconds> ("1-1/2sec") .should_yield (Time(500,0) );
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Parsing<format::Seconds> ("-1-1/2sec") .should_yield (-Time(500,1) );
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Parsing<format::Seconds> ("-1+1/2sec") .should_yield (-Time(500,0) );
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Parsing<format::Seconds> ("-1+1/-2sec") .should_fail();
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Parsing<format::Seconds> ("-12+24690/12345sec", OFFSET_GRID).should_yield(0); // origin=+10sec -12sec + 2/1sec == 0
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Parsing<format::Seconds> ("1") .should_fail();
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Parsing<format::Seconds> ("1 sec") .should_fail();
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Parsing<format::Seconds> ("--1sec") .should_fail();
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Parsing<format::Seconds> ("/-1sec") .should_fail();
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Parsing<format::Seconds> ("1.2sec") .should_fail();
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Parsing<format::Seconds> ("1/.2sec") .should_fail();
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Parsing<format::Seconds> ("1 + 2 / 4 sec") .should_fail();
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Parsing<format::Seconds> ("1 + 2 / 4sec") .should_yield(4); // note pitfall: leading garbage not considered
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Parsing<format::Seconds> ("xxx4secxxxx") .should_yield(4);
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Parsing<format::Seconds> ("x1# 8/2sec 2sec").should_yield(4); // note pitfall: first valid number used
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}
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void
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parseHms ()
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{
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UNIMPLEMENTED ("verify reading hour-minutes-seconds-millis time specs");
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}
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void
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parseSmpte ()
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{
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}
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void
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parseDropFrame ()
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{
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UNIMPLEMENTED ("verify especially SMPTE-drop-frame timecode");
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}
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};
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/** Register this test class... */
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LAUNCHER (TimeParsing_test, "unit common");
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}}} // namespace lib::time::test
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