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temporal: add some basic BBT time tests

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Some of the subtraction tests may need revising because it is not immediately clear that the
current answers are correct.
This commit is contained in:
Paul Davis 2022-02-21 11:55:44 -07:00
parent 47bf18101b
commit 92d82866e0
1 changed files with 82 additions and 1 deletions
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83
libs/temporal/test/BBTTest.cc
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@ -1,6 +1,7 @@
#include <stdlib.h>
#include "temporal/bbt_time.h"
#include "temporal/tempo.h"
#include "BBTTest.h"
@ -11,16 +12,97 @@ using namespace Temporal;
void
BBTTest::createTest()
{
CPPUNIT_ASSERT_THROW_MESSAGE ("- zero-bar BBT_Time;", BBT_Time (0, 1, 0), IllegalBBTTimeException);
CPPUNIT_ASSERT_THROW_MESSAGE ("- zero-beat BBT_Time;", BBT_Time (1, 0, 0), IllegalBBTTimeException);
CPPUNIT_ASSERT_THROW_MESSAGE ("- zero-bar-and-beat BBT_Time;", BBT_Time (0, 0, 0), IllegalBBTTimeException);
/* This test checks that BBT_Time cannot convert ticks to beats etc., so the explicit 1920 ticks remains
that in the constructed BBT_Time, rather than being converted to an additional beat. This has to be true
because BBT_Time has no clue what the meter is.
*/
BBT_Time a (1, 1, 1920);
CPPUNIT_ASSERT(BBT_Time (1,2,0) != a);
/* by contrast, a zero-distance "walk" from that location should return a canonicalized BBT_Time, which given a 4/4 meter
will be 1|2|0
*/
TempoMap::SharedPtr tmap (TempoMap::fetch());
BBT_Offset b (0, 0, 0);
BBT_Time r = tmap->bbt_walk (a, b);
CPPUNIT_ASSERT_EQUAL(BBT_Time (1,2,0), r);
}
void
BBTTest::addTest()
{
TempoMap::SharedPtr tmap (TempoMap::fetch());
BBT_Time a(1,1,0);
BBT_Offset b(1,0,0);
BBT_Time r = tmap->bbt_walk (a, b);
CPPUNIT_ASSERT_EQUAL(BBT_Time (2,1,0), r);
b = BBT_Offset (0, 1, 0);
r = tmap->bbt_walk (a, b);
CPPUNIT_ASSERT_EQUAL(BBT_Time (1,2,0), r);
b = BBT_Offset (0, 0, 1);
r = tmap->bbt_walk (a, b);
CPPUNIT_ASSERT_EQUAL(BBT_Time (1,1,1), r);
b = BBT_Offset (0, 0, ticks_per_beat - 1);
r = tmap->bbt_walk (a, b);
CPPUNIT_ASSERT_EQUAL(BBT_Time (1,1,ticks_per_beat - 1), r);
b = BBT_Offset (0, 0, ticks_per_beat);
r = tmap->bbt_walk (a, b);
CPPUNIT_ASSERT_EQUAL(BBT_Time (1,2,0), r);
b = BBT_Offset (0, 0, ticks_per_beat * 2);
r = tmap->bbt_walk (a, b);
CPPUNIT_ASSERT_EQUAL(BBT_Time (1,3,0), r);
/* assumes 4/4 time */
b = BBT_Offset (0, 4, 0);
r = tmap->bbt_walk (a, b);
CPPUNIT_ASSERT_EQUAL(BBT_Time (2,1,0), r);
b = BBT_Offset (1, 0, 0);
r = tmap->bbt_walk (a, b);
CPPUNIT_ASSERT_EQUAL(BBT_Time (2,1,0), r);
b = BBT_Offset (0, 0, ticks_per_beat * 4);
r = tmap->bbt_walk (a, b);
CPPUNIT_ASSERT_EQUAL(BBT_Time (2,1,0), r);
}
void
BBTTest::subtractTest()
{
TempoMap::SharedPtr tmap (TempoMap::fetch());
BBT_Time a (1,1,0);
BBT_Offset b (1,0,0);
BBT_Time r = tmap->bbt_walk (a, -b);
CPPUNIT_ASSERT_EQUAL(BBT_Time (-1,1,0), r);
b = BBT_Offset (0, 1, 0);
r = tmap->bbt_walk (a, -b);
CPPUNIT_ASSERT_EQUAL(BBT_Time (1,-1,0), r); /* Not sure this is actually the correct answer */
b = BBT_Offset (0, 0, 1);
r = tmap->bbt_walk (a, -b);
CPPUNIT_ASSERT_EQUAL(BBT_Time (1,1,-1), r); /* Not sure this is actually the correct answer */
b = BBT_Offset (0, 0, ticks_per_beat);
r = tmap->bbt_walk (a, -b);
CPPUNIT_ASSERT_EQUAL(BBT_Time (1,1,-ticks_per_beat), r); /* Not sure this is actually the correct answer */
b = BBT_Offset (0, 0, ticks_per_beat + 1);
r = tmap->bbt_walk (a, -b);
CPPUNIT_ASSERT_EQUAL(BBT_Time (1,1,-(ticks_per_beat+1)), r); /* Not sure this is actually the correct answer */
}
void
@ -37,4 +119,3 @@ void
BBTTest::convertTest()
{
}