Chris@1407: /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */
Chris@1407: 
Chris@1407: /*
Chris@1407:     Sonic Visualiser
Chris@1407:     An audio file viewer and annotation editor.
Chris@1407:     Centre for Digital Music, Queen Mary, University of London.
Chris@1407:     
Chris@1407:     This program is free software; you can redistribute it and/or
Chris@1407:     modify it under the terms of the GNU General Public License as
Chris@1407:     published by the Free Software Foundation; either version 2 of the
Chris@1407:     License, or (at your option) any later version.  See the file
Chris@1407:     COPYING included with this distribution for more information.
Chris@1407: */
Chris@1407: 
Chris@1407: #ifndef TEST_SCALE_TICK_INTERVALS_H
Chris@1407: #define TEST_SCALE_TICK_INTERVALS_H
Chris@1407: 
Chris@1407: #include "../ScaleTickIntervals.h"
Chris@1407: 
Chris@1407: #include <QObject>
Chris@1407: #include <QtTest>
Chris@1407: #include <QDir>
Chris@1407: 
Chris@1407: #include <iostream>
Chris@1407: 
Chris@1407: using namespace std;
Chris@1407: 
Chris@1407: class TestScaleTickIntervals : public QObject
Chris@1407: {
Chris@1407:     Q_OBJECT
Chris@1407: 
Chris@1407:     void printDiff(vector<ScaleTickIntervals::Tick> ticks,
Chris@1407: 		   vector<ScaleTickIntervals::Tick> expected) {
Chris@1407: 
Chris@1428:     SVCERR << "Have " << ticks.size() << " ticks, expected "
Chris@1407: 	     << expected.size() << endl;
Chris@1411: 	for (int i = 0; i < int(ticks.size()); ++i) {
Chris@1428:             SVCERR << i << ": have " << ticks[i].value << " \""
Chris@1411:                  << ticks[i].label << "\", expected ";
Chris@1411: 	    if (i < int(expected.size())) {
Chris@1428:                 SVCERR << expected[i].value << " \"" << expected[i].label
Chris@1407: 		     << "\"" << endl;
Chris@1411:             } else {
Chris@1428:                 SVCERR << "(n/a)" << endl;
Chris@1407: 	    }
Chris@1407: 	}
Chris@1407:     }
Chris@1407:     
Chris@1417:     void compareTicks(ScaleTickIntervals::Ticks ticks,
Chris@1417: 		      ScaleTickIntervals::Ticks expected,
Chris@1415:                       bool fuzzier = false)
Chris@1407:     {
Chris@1408:         double eps = 1e-7;
Chris@1407: 	for (int i = 0; i < int(expected.size()); ++i) {
Chris@1407: 	    if (i < int(ticks.size())) {
Chris@1415:                 bool pass = true;
Chris@1415: 		if (ticks[i].label != expected[i].label) {
Chris@1415:                     pass = false;
Chris@1415:                 } else if (!fuzzier) {
Chris@1415: 		    if (fabs(ticks[i].value - expected[i].value) > eps) {
Chris@1415:                         pass = false;
Chris@1415:                     }
Chris@1415:                 } else {
Chris@1415: 		    if (fabs(ticks[i].value - expected[i].value) >
Chris@1415:                         fabs(ticks[i].value) * 1e-5) {
Chris@1415:                         pass = false;
Chris@1415:                     }
Chris@1415:                 }
Chris@1415:                 if (!pass) {
Chris@1407: 		    printDiff(ticks, expected);
Chris@1415:                     QCOMPARE(ticks[i].label, expected[i].label);
Chris@1415:                     QCOMPARE(ticks[i].value, expected[i].value);
Chris@1415:                 }
Chris@1407: 	    }
Chris@1407: 	}
Chris@1408:         if (ticks.size() != expected.size()) {
Chris@1408:             printDiff(ticks, expected);
Chris@1408:         }
Chris@1407: 	QCOMPARE(ticks.size(), expected.size());
Chris@1407:     }
Chris@1407:     
Chris@1407: private slots:
Chris@1407:     void linear_0_1_10()
Chris@1407:     {
Chris@1407: 	auto ticks = ScaleTickIntervals::linear({ 0, 1, 10 });
Chris@1417: 	ScaleTickIntervals::Ticks expected {
Chris@1409: 	    { 0.0, "0.0" },
Chris@1409: 	    { 0.1, "0.1" },
Chris@1409: 	    { 0.2, "0.2" },
Chris@1409: 	    { 0.3, "0.3" },
Chris@1409: 	    { 0.4, "0.4" },
Chris@1409: 	    { 0.5, "0.5" },
Chris@1409: 	    { 0.6, "0.6" },
Chris@1409: 	    { 0.7, "0.7" },
Chris@1409: 	    { 0.8, "0.8" },
Chris@1409: 	    { 0.9, "0.9" },
Chris@1409: 	    { 1.0, "1.0" }
Chris@1409: 	};
Chris@1417: 	compareTicks(ticks, expected);
Chris@1409:     }
Chris@1409: 
Chris@1409:     void linear_0_5_5()
Chris@1409:     {
Chris@1409: 	auto ticks = ScaleTickIntervals::linear({ 0, 5, 5 });
Chris@1417: 	ScaleTickIntervals::Ticks expected {
Chris@1415: 	    { 0, "0" },
Chris@1415: 	    { 1, "1" },
Chris@1415: 	    { 2, "2" },
Chris@1415: 	    { 3, "3" },
Chris@1415: 	    { 4, "4" },
Chris@1415: 	    { 5, "5" },
Chris@1409: 	};
Chris@1417: 	compareTicks(ticks, expected);
Chris@1409:     }
Chris@1409: 
Chris@1409:     void linear_0_10_5()
Chris@1409:     {
Chris@1409: 	auto ticks = ScaleTickIntervals::linear({ 0, 10, 5 });
Chris@1417: 	ScaleTickIntervals::Ticks expected {
Chris@1415: 	    { 0, "0" },
Chris@1415: 	    { 2, "2" },
Chris@1415: 	    { 4, "4" },
Chris@1415: 	    { 6, "6" },
Chris@1415: 	    { 8, "8" },
Chris@1415: 	    { 10, "10" }
Chris@1407: 	};
Chris@1417: 	compareTicks(ticks, expected);
Chris@1407:     }
Chris@1407: 
Chris@1411:     void linear_10_0_5()
Chris@1411:     {
Chris@1411: 	auto ticks = ScaleTickIntervals::linear({ 10, 0, 5 });
Chris@1417: 	ScaleTickIntervals::Ticks expected {
Chris@1415: 	    { 0, "0" },
Chris@1415: 	    { 2, "2" },
Chris@1415: 	    { 4, "4" },
Chris@1415: 	    { 6, "6" },
Chris@1415: 	    { 8, "8" },
Chris@1415: 	    { 10, "10" }
Chris@1411: 	};
Chris@1417: 	compareTicks(ticks, expected);
Chris@1411:     }
Chris@1411: 
Chris@1411:     void linear_m10_0_5()
Chris@1411:     {
Chris@1411: 	auto ticks = ScaleTickIntervals::linear({ -10, 0, 5 });
Chris@1417: 	ScaleTickIntervals::Ticks expected {
Chris@1415: 	    { -10, "-10" },
Chris@1415: 	    { -8, "-8" },
Chris@1415: 	    { -6, "-6" },
Chris@1415: 	    { -4, "-4" },
Chris@1415: 	    { -2, "-2" },
Chris@1415: 	    { 0, "0" }
Chris@1411: 	};
Chris@1417: 	compareTicks(ticks, expected);
Chris@1411:     }
Chris@1411: 
Chris@1411:     void linear_0_m10_5()
Chris@1411:     {
Chris@1411: 	auto ticks = ScaleTickIntervals::linear({ 0, -10, 5 });
Chris@1417: 	ScaleTickIntervals::Ticks expected {
Chris@1415: 	    { -10, "-10" },
Chris@1415: 	    { -8, "-8" },
Chris@1415: 	    { -6, "-6" },
Chris@1415: 	    { -4, "-4" },
Chris@1415: 	    { -2, "-2" },
Chris@1415: 	    { 0, "0" }
Chris@1411: 	};
Chris@1417: 	compareTicks(ticks, expected);
Chris@1411:     }
Chris@1411: 
Chris@1407:     void linear_0_0p1_5()
Chris@1407:     {
Chris@1407: 	auto ticks = ScaleTickIntervals::linear({ 0, 0.1, 5 });
Chris@1417: 	ScaleTickIntervals::Ticks expected {
Chris@1409: 	    { 0.00, "0.00" },
Chris@1407: 	    { 0.02, "0.02" },
Chris@1407: 	    { 0.04, "0.04" },
Chris@1407: 	    { 0.06, "0.06" },
Chris@1407: 	    { 0.08, "0.08" },
Chris@1409: 	    { 0.10, "0.10" }
Chris@1407: 	};
Chris@1417: 	compareTicks(ticks, expected);
Chris@1407:     }
Chris@1407: 
Chris@1407:     void linear_0_0p01_5()
Chris@1407:     {
Chris@1407: 	auto ticks = ScaleTickIntervals::linear({ 0, 0.01, 5 });
Chris@1417: 	ScaleTickIntervals::Ticks expected {
Chris@1409: 	    { 0.000, "0.000" },
Chris@1407: 	    { 0.002, "0.002" },
Chris@1407: 	    { 0.004, "0.004" },
Chris@1407: 	    { 0.006, "0.006" },
Chris@1407: 	    { 0.008, "0.008" },
Chris@1409: 	    { 0.010, "0.010" }
Chris@1409: 	};
Chris@1417: 	compareTicks(ticks, expected);
Chris@1409:     }
Chris@1409: 
Chris@1409:     void linear_0_0p005_5()
Chris@1409:     {
Chris@1409: 	auto ticks = ScaleTickIntervals::linear({ 0, 0.005, 5 });
Chris@1417: 	ScaleTickIntervals::Ticks expected {
Chris@1409: 	    { 0.000, "0.000" },
Chris@1409: 	    { 0.001, "0.001" },
Chris@1409: 	    { 0.002, "0.002" },
Chris@1409: 	    { 0.003, "0.003" },
Chris@1409: 	    { 0.004, "0.004" },
Chris@1409: 	    { 0.005, "0.005" }
Chris@1407: 	};
Chris@1417: 	compareTicks(ticks, expected);
Chris@1407:     }
Chris@1407: 
Chris@1407:     void linear_0_0p001_5()
Chris@1407:     {
Chris@1407: 	auto ticks = ScaleTickIntervals::linear({ 0, 0.001, 5 });
Chris@1417: 	ScaleTickIntervals::Ticks expected {
Chris@1409: 	    { 0.0000, "0.0e+00" },
Chris@1407: 	    { 0.0002, "2.0e-04" },
Chris@1407: 	    { 0.0004, "4.0e-04" },
Chris@1407: 	    { 0.0006, "6.0e-04" },
Chris@1407: 	    { 0.0008, "8.0e-04" },
Chris@1409: 	    { 0.0010, "1.0e-03" }
Chris@1407: 	};
Chris@1417: 	compareTicks(ticks, expected);
Chris@1407:     }
Chris@1407:     
Chris@1407:     void linear_1_1p001_5()
Chris@1407:     {
Chris@1407: 	auto ticks = ScaleTickIntervals::linear({ 1, 1.001, 5 });
Chris@1417: 	ScaleTickIntervals::Ticks expected {
Chris@1409: 	    { 1.0000, "1.0000" },
Chris@1407: 	    { 1.0002, "1.0002" },
Chris@1407: 	    { 1.0004, "1.0004" },
Chris@1407: 	    { 1.0006, "1.0006" },
Chris@1407: 	    { 1.0008, "1.0008" },
Chris@1409: 	    { 1.0010, "1.0010" }
Chris@1409: 	};
Chris@1417: 	compareTicks(ticks, expected);
Chris@1409:     }
Chris@1409:     
Chris@1413:     void linear_0p001_1_5()
Chris@1413:     {
Chris@1413: 	auto ticks = ScaleTickIntervals::linear({ 0.001, 1, 5 });
Chris@1417: 	ScaleTickIntervals::Ticks expected {
Chris@1413: 	    { 0.1, "0.1" },
Chris@1413: 	    { 0.3, "0.3" },
Chris@1413: 	    { 0.5, "0.5" },
Chris@1413: 	    { 0.7, "0.7" },
Chris@1413: 	    { 0.9, "0.9" },
Chris@1413: 	};
Chris@1417: 	compareTicks(ticks, expected);
Chris@1413:     }
Chris@1413:         
Chris@1409:     void linear_10000_10010_5()
Chris@1409:     {
Chris@1409: 	auto ticks = ScaleTickIntervals::linear({ 10000, 10010, 5 });
Chris@1417: 	ScaleTickIntervals::Ticks expected {
Chris@1415: 	    { 10000, "10000" },
Chris@1415: 	    { 10002, "10002" },
Chris@1415: 	    { 10004, "10004" },
Chris@1415: 	    { 10006, "10006" },
Chris@1415: 	    { 10008, "10008" },
Chris@1415: 	    { 10010, "10010" },
Chris@1409: 	};
Chris@1417: 	compareTicks(ticks, expected);
Chris@1409:     }
Chris@1409:     
Chris@1409:     void linear_10000_20000_5()
Chris@1409:     {
Chris@1409: 	auto ticks = ScaleTickIntervals::linear({ 10000, 20000, 5 });
Chris@1417: 	ScaleTickIntervals::Ticks expected {
Chris@1409: 	    { 10000, "10000" },
Chris@1409: 	    { 12000, "12000" },
Chris@1409: 	    { 14000, "14000" },
Chris@1409: 	    { 16000, "16000" },
Chris@1409: 	    { 18000, "18000" },
Chris@1409: 	    { 20000, "20000" },
Chris@1409: 	};
Chris@1417: 	compareTicks(ticks, expected);
Chris@1409:     }
Chris@1409:     
Chris@1409:     void linear_m1_1_10()
Chris@1409:     {
Chris@1409: 	auto ticks = ScaleTickIntervals::linear({ -1, 1, 10 });
Chris@1417: 	ScaleTickIntervals::Ticks expected {
Chris@1409: 	    { -1.0, "-1.0" },
Chris@1409: 	    { -0.8, "-0.8" },
Chris@1409: 	    { -0.6, "-0.6" },
Chris@1409: 	    { -0.4, "-0.4" },
Chris@1409: 	    { -0.2, "-0.2" },
Chris@1409: 	    { 0.0, "0.0" },
Chris@1409: 	    { 0.2, "0.2" },
Chris@1409: 	    { 0.4, "0.4" },
Chris@1409: 	    { 0.6, "0.6" },
Chris@1409: 	    { 0.8, "0.8" },
Chris@1409: 	    { 1.0, "1.0" }
Chris@1407: 	};
Chris@1417: 	compareTicks(ticks, expected);
Chris@1407:     }
Chris@1411: 
Chris@1411:     void linear_221p23_623p7_57p4()
Chris@1411:     {
Chris@1411: 	auto ticks = ScaleTickIntervals::linear({ 221.23, 623.7, 4 });
Chris@1411:         // only 4 ticks, not 5, because none of the rounded tick
Chris@1411:         // values lies on an end value
Chris@1417: 	ScaleTickIntervals::Ticks expected {
Chris@1418:             { 300, "300" },
Chris@1418:             { 400, "400" },
Chris@1418:             { 500, "500" },
Chris@1418:             { 600, "600" },
Chris@1411: 	};
Chris@1417: 	compareTicks(ticks, expected);
Chris@1411:     }
Chris@1411: 
Chris@1412:     void linear_sqrt2_pi_7()
Chris@1412:     {
Chris@1412: 	auto ticks = ScaleTickIntervals::linear({ sqrt(2.0), M_PI, 7 });
Chris@1412:         // This would be better in steps of 0.25, but we only round to
Chris@1412:         // integral powers of ten
Chris@1417: 	ScaleTickIntervals::Ticks expected {
Chris@1412:             { 1.5, "1.5" },
Chris@1412:             { 1.7, "1.7" },
Chris@1412:             { 1.9, "1.9" },
Chris@1412:             { 2.1, "2.1" },
Chris@1412:             { 2.3, "2.3" },
Chris@1412:             { 2.5, "2.5" },
Chris@1412:             { 2.7, "2.7" },
Chris@1412:             { 2.9, "2.9" },
Chris@1412:             { 3.1, "3.1" },
Chris@1412: 	};
Chris@1417: 	compareTicks(ticks, expected);
Chris@1412:     }
Chris@1412: 
Chris@1412:     void linear_pi_avogadro_7()
Chris@1412:     {
Chris@1412: 	auto ticks = ScaleTickIntervals::linear({ M_PI, 6.022140857e23, 7 });
Chris@1417: 	ScaleTickIntervals::Ticks expected {
Chris@1418:             // not perfect, but ok-ish
Chris@1421:             { 0, "0.0e+00" },
Chris@1421:             { 9e+22, "9.0e+22" },
Chris@1421:             { 1.8e+23, "1.8e+23" },
Chris@1421:             { 2.7e+23, "2.7e+23" },
Chris@1421:             { 3.6e+23, "3.6e+23" },
Chris@1421:             { 4.5e+23, "4.5e+23" },
Chris@1421:             { 5.4e+23, "5.4e+23" },
Chris@1412: 	};
Chris@1417: 	compareTicks(ticks, expected);
Chris@1412:     }
Chris@1412: 
Chris@1412:     void linear_2_3_1()
Chris@1412:     {
Chris@1412: 	auto ticks = ScaleTickIntervals::linear({ 2, 3, 1 });
Chris@1417: 	ScaleTickIntervals::Ticks expected {
Chris@1415: 	    { 2.0, "2" },
Chris@1415: 	    { 3.0, "3" }
Chris@1412: 	};
Chris@1417: 	compareTicks(ticks, expected);
Chris@1412:     }
Chris@1412: 
Chris@1412:     void linear_2_3_2()
Chris@1412:     {
Chris@1412: 	auto ticks = ScaleTickIntervals::linear({ 2, 3, 2 });
Chris@1417: 	ScaleTickIntervals::Ticks expected {
Chris@1412: 	    { 2.0, "2.0" },
Chris@1412: 	    { 2.5, "2.5" },
Chris@1412: 	    { 3.0, "3.0" }
Chris@1412: 	};
Chris@1417: 	compareTicks(ticks, expected);
Chris@1412:     }
Chris@1412: 
Chris@1412:     void linear_2_3_3()
Chris@1412:     {
Chris@1412: 	auto ticks = ScaleTickIntervals::linear({ 2, 3, 3 });
Chris@1417: 	ScaleTickIntervals::Ticks expected {
Chris@1412: 	    { 2.0, "2.0" },
Chris@1412: 	    { 2.3, "2.3" },
Chris@1412: 	    { 2.6, "2.6" },
Chris@1412: 	    { 2.9, "2.9" }
Chris@1412: 	};
Chris@1417: 	compareTicks(ticks, expected);
Chris@1412:     }
Chris@1412: 
Chris@1412:     void linear_2_3_4()
Chris@1412:     {
Chris@1412: 	auto ticks = ScaleTickIntervals::linear({ 2, 3, 4 });
Chris@1412:         // This would be better in steps of 0.25, but we only round to
Chris@1412:         // integral powers of ten
Chris@1417: 	ScaleTickIntervals::Ticks expected {
Chris@1412: 	    { 2.0, "2.0" },
Chris@1412: 	    { 2.3, "2.3" },
Chris@1412: 	    { 2.6, "2.6" },
Chris@1412: 	    { 2.9, "2.9" }
Chris@1412: 	};
Chris@1417: 	compareTicks(ticks, expected);
Chris@1412:     }
Chris@1412: 
Chris@1412:     void linear_2_3_5()
Chris@1412:     {
Chris@1412: 	auto ticks = ScaleTickIntervals::linear({ 2, 3, 5 });
Chris@1417: 	ScaleTickIntervals::Ticks expected {
Chris@1412: 	    { 2.0, "2.0" },
Chris@1412: 	    { 2.2, "2.2" },
Chris@1412: 	    { 2.4, "2.4" },
Chris@1412: 	    { 2.6, "2.6" },
Chris@1412: 	    { 2.8, "2.8" },
Chris@1412: 	    { 3.0, "3.0" }
Chris@1412: 	};
Chris@1417: 	compareTicks(ticks, expected);
Chris@1412:     }
Chris@1412: 
Chris@1412:     void linear_2_3_6()
Chris@1412:     {
Chris@1412: 	auto ticks = ScaleTickIntervals::linear({ 2, 3, 6 });
Chris@1417: 	ScaleTickIntervals::Ticks expected {
Chris@1412: 	    { 2.0, "2.0" },
Chris@1412: 	    { 2.2, "2.2" },
Chris@1412: 	    { 2.4, "2.4" },
Chris@1412: 	    { 2.6, "2.6" },
Chris@1412: 	    { 2.8, "2.8" },
Chris@1412: 	    { 3.0, "3.0" }
Chris@1412: 	};
Chris@1417: 	compareTicks(ticks, expected);
Chris@1412:     }
Chris@1412: 
Chris@1411:     void linear_1_1_10()
Chris@1411:     {
Chris@1415:         // pathological range
Chris@1411: 	auto ticks = ScaleTickIntervals::linear({ 1, 1, 10 });
Chris@1417: 	ScaleTickIntervals::Ticks expected {
Chris@1418: 	    { 1.0, "1" }
Chris@1411: 	};
Chris@1417: 	compareTicks(ticks, expected);
Chris@1411:     }
Chris@1411:     
Chris@1411:     void linear_0_0_10()
Chris@1411:     {
Chris@1415:         // pathological range
Chris@1411: 	auto ticks = ScaleTickIntervals::linear({ 0, 0, 10 });
Chris@1417: 	ScaleTickIntervals::Ticks expected {
Chris@1418: 	    { 0.0, "0" }
Chris@1411: 	};
Chris@1417: 	compareTicks(ticks, expected);
Chris@1411:     }
Chris@1411:     
Chris@1411:     void linear_0_1_1()
Chris@1411:     {
Chris@1411: 	auto ticks = ScaleTickIntervals::linear({ 0, 1, 1 });
Chris@1417: 	ScaleTickIntervals::Ticks expected {
Chris@1415: 	    { 0.0, "0" },
Chris@1415: 	    { 1.0, "1" }
Chris@1411: 	};
Chris@1417: 	compareTicks(ticks, expected);
Chris@1411:     }
Chris@1411:     
Chris@1411:     void linear_0_1_0()
Chris@1411:     {
Chris@1416:         // senseless input
Chris@1411: 	auto ticks = ScaleTickIntervals::linear({ 0, 1, 0 });
Chris@1417: 	ScaleTickIntervals::Ticks expected {
Chris@1418: 	    { 0.0, "0" },
Chris@1411: 	};
Chris@1417: 	compareTicks(ticks, expected);
Chris@1411:     }
Chris@1411:     
Chris@1411:     void linear_0_1_m1()
Chris@1411:     {
Chris@1416:         // senseless input
Chris@1411: 	auto ticks = ScaleTickIntervals::linear({ 0, 1, -1 });
Chris@1417: 	ScaleTickIntervals::Ticks expected {
Chris@1418: 	    { 0.0, "0" },
Chris@1411: 	};
Chris@1417: 	compareTicks(ticks, expected);
Chris@1411:     }
Chris@1414: 
Chris@1416:     void linear_0p465_778_10()
Chris@1416:     {
Chris@1416:         // a case that gave unsatisfactory results in real life
Chris@1418:         // (initially it had the first tick at 1)
Chris@1416:         auto ticks = ScaleTickIntervals::linear({ 0.465, 778.08, 10 });
Chris@1417:         ScaleTickIntervals::Ticks expected {
Chris@1418:             { 10, "10" },
Chris@1418:             { 90, "90" },
Chris@1418:             { 170, "170" },
Chris@1418:             { 250, "250" },
Chris@1418:             { 330, "330" },
Chris@1418:             { 410, "410" },
Chris@1418:             { 490, "490" },
Chris@1418:             { 570, "570" },
Chris@1418:             { 650, "650" },
Chris@1418:             { 730, "730" },
Chris@1416:         };
Chris@1417:         compareTicks(ticks, expected);
Chris@1416:     }
Chris@1416:     
Chris@1414:     void log_1_10_2()
Chris@1414:     {
Chris@1414:         auto ticks = ScaleTickIntervals::logarithmic({ 1, 10, 2 });
Chris@1417: 	ScaleTickIntervals::Ticks expected {
Chris@1414:             { 1.0, "1.0" },
Chris@1414:             { pow(10.0, 0.5), "3.2" },
Chris@1414:             { 10.0, "10.0" },
Chris@1414: 	};
Chris@1417: 	compareTicks(ticks, expected);
Chris@1414:     }
Chris@1414:     
Chris@1414:     void log_0_10_2()
Chris@1414:     {
Chris@1414:         auto ticks = ScaleTickIntervals::logarithmic({ 0, 10, 2 });
Chris@1417: 	ScaleTickIntervals::Ticks expected {
Chris@1418:             { 1e-6, "1e-06" },
Chris@1418:             { 1, "1" },
Chris@1414: 	};
Chris@1417: 	compareTicks(ticks, expected);
Chris@1414:     }
Chris@1415: 
Chris@1415:     void log_pi_avogadro_7()
Chris@1415:     {
Chris@1415: 	auto ticks = ScaleTickIntervals::logarithmic({ M_PI, 6.022140857e23, 7 });
Chris@1417: 	ScaleTickIntervals::Ticks expected {
Chris@1418:             { 1000, "1e+03" },
Chris@1418:             { 1e+06, "1e+06" },
Chris@1418:             { 1e+09, "1e+09" },
Chris@1418:             { 1e+12, "1e+12" },
Chris@1418:             { 1e+15, "1e+15" },
Chris@1418:             { 1e+18, "1e+18" },
Chris@1418:             { 1e+21, "1e+21" },
Chris@1415: 	};
Chris@1417: 	compareTicks(ticks, expected, true);
Chris@1415:     }
Chris@1418:     
Chris@1418:     void log_0p465_778_10()
Chris@1418:     {
Chris@1418:         auto ticks = ScaleTickIntervals::logarithmic({ 0.465, 778.08, 10 });
Chris@1418:         ScaleTickIntervals::Ticks expected {
Chris@1418:             { 0.5, "0.5" },
Chris@1418:             { 1, "1.0" },
Chris@1418:             { 2, "2.0" },
Chris@1418:             { 4, "4.0" },
Chris@1418:             { 8, "8.0" },
Chris@1418:             { 16, "16.0" },
Chris@1418:             { 32, "32.0" },
Chris@1418:             { 64, "64.0" },
Chris@1418:             { 128, "128.0" },
Chris@1418:             { 256, "256.0" },
Chris@1418:             { 512, "512.0" },
Chris@1418:         };
Chris@1418:         compareTicks(ticks, expected);
Chris@1418:     }
Chris@1418:     
Chris@1407: };
Chris@1407: 
Chris@1407: #endif
Chris@1407: 
Chris@1407: