diff data/fileio/test/CSVStreamWriterTest.h @ 1527:710e6250a401 zoom

Merge from default branch

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/data/fileio/test/CSVStreamWriterTest.h	Mon Sep 17 13:51:14 2018 +0100
@@ -0,0 +1,328 @@
+/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */
+
+/*
+    Sonic Visualiser
+    An audio file viewer and annotation editor.
+    Centre for Digital Music, Queen Mary, University of London.
+    This file copyright 2017 Queen Mary, University of London.
+    
+    This program is free software; you can redistribute it and/or
+    modify it under the terms of the GNU General Public License as
+    published by the Free Software Foundation; either version 2 of the
+    License, or (at your option) any later version.  See the file
+    COPYING included with this distribution for more information.
+*/
+
+#ifndef TEST_CSV_STREAM_H
+#define TEST_CSV_STREAM_H
+
+#include <QtTest>
+#include <QObject>
+#include <sstream>
+#include <functional>
+
+#include "base/ProgressReporter.h"
+#include "base/DataExportOptions.h"
+#include "base/Selection.h"
+#include "data/model/NoteModel.h"
+#include "../CSVStreamWriter.h"
+#include "../../model/test/MockWaveModel.h"
+
+class StubReporter : public ProgressReporter
+{
+public:
+    StubReporter( std::function<bool()> isCancelled )
+        : m_isCancelled(isCancelled) {}
+    bool isDefinite() const override { return true; }
+    void setDefinite(bool) override {}
+    bool wasCancelled() const override { return m_isCancelled(); }
+    void setMessage(QString) override {}
+    void setProgress(int p) override
+    { 
+        ++m_calls;
+        m_percentageLog.push_back(p);
+    }
+
+    size_t getCallCount() const { return m_calls; }
+    std::vector<int> getPercentageLog() const { return m_percentageLog; }
+    void reset() { m_calls = 0; }
+private:
+    size_t m_calls = 0;
+    std::function<bool()> m_isCancelled;
+    std::vector<int> m_percentageLog;
+};
+
+class CSVStreamWriterTest : public QObject
+{
+    Q_OBJECT
+public:
+    std::string getExpectedString()
+    {
+        return
+        {
+          "0,0,0\n"
+          "1,0,0\n"
+          "2,0,0\n"
+          "3,0,0\n"
+          "4,1,1\n"
+          "5,1,1\n"
+          "6,1,1\n"
+          "7,1,1\n"
+          "8,1,1\n"
+          "9,1,1\n"
+          "10,1,1\n"
+          "11,1,1\n"
+          "12,1,1\n"
+          "13,1,1\n"
+          "14,1,1\n"
+          "15,1,1\n"
+          "16,1,1\n"
+          "17,1,1\n"
+          "18,1,1\n"
+          "19,1,1\n"
+          "20,0,0\n"
+          "21,0,0\n"
+          "22,0,0\n"
+          "23,0,0"
+        };
+    }
+
+private slots:
+    void simpleValidOutput()
+    {
+        MockWaveModel mwm({ DC, DC }, 16, 4);
+
+        std::ostringstream oss;
+        const auto result = CSVStreamWriter::writeInChunks(oss, mwm);
+        QVERIFY( oss.str() == getExpectedString() );
+        QVERIFY( result );
+    }
+
+    void callsReporterCorrectTimes()
+    {
+        MockWaveModel mwm({ DC, DC }, 16, 4);
+        StubReporter reporter { []() -> bool { return false; } };
+        const auto expected = getExpectedString();
+
+        std::ostringstream oss;
+        const auto writeStreamWithBlockSize = [&](int blockSize) {
+            return CSVStreamWriter::writeInChunks(
+                oss,
+                mwm,
+                &reporter,
+                ",",
+                DataExportDefaults,
+                blockSize
+            );
+        };
+
+        const auto reset = [&]() {
+            oss.str({});
+            reporter.reset();
+        };
+
+        const auto nonIntegerMultipleResult = writeStreamWithBlockSize(5);
+        QVERIFY( nonIntegerMultipleResult );
+        QVERIFY( reporter.getCallCount() == 5 /* 4.8 rounded up */ );
+        QVERIFY( oss.str() == expected );
+        reset();
+
+        const auto integerMultiple = writeStreamWithBlockSize(2);
+        QVERIFY( integerMultiple );
+        QVERIFY( reporter.getCallCount() == 12 );
+        QVERIFY( oss.str() == expected );
+        reset();
+
+        const auto largerThanNumberOfSamples = writeStreamWithBlockSize(100);
+        QVERIFY( largerThanNumberOfSamples );
+        QVERIFY( reporter.getCallCount() == 1 );
+        QVERIFY( oss.str() == expected );
+        reset();
+
+        const auto zero = writeStreamWithBlockSize(0);
+        QVERIFY( zero == false );
+        QVERIFY( reporter.getCallCount() == 0 );
+    }
+
+    void isCancellable()
+    {
+        MockWaveModel mwm({ DC, DC }, 16, 4);
+        StubReporter reporter { []() -> bool { return true; } };
+
+        std::ostringstream oss;
+        const auto cancelImmediately = CSVStreamWriter::writeInChunks(
+            oss,
+            mwm,
+            &reporter,
+            ",",
+            DataExportDefaults,
+            4
+        );
+        QVERIFY( cancelImmediately == false );
+        QVERIFY( reporter.getCallCount() == 0 );
+
+        StubReporter cancelMidway { 
+            [&]() { return cancelMidway.getCallCount() == 3; } 
+        };
+        const auto cancelledMidway = CSVStreamWriter::writeInChunks(
+            oss,
+            mwm,
+            &cancelMidway,
+            ",",
+            DataExportDefaults,
+            4
+        );
+        QVERIFY( cancelMidway.getCallCount() == 3 );
+        QVERIFY( cancelledMidway == false );
+    }
+
+    void zeroStartTimeReportsPercentageCorrectly()
+    {
+        MockWaveModel mwm({ DC, DC }, 16, 4);
+        StubReporter reporter { []() -> bool { return false; } };
+        std::ostringstream oss;
+        const auto succeeded = CSVStreamWriter::writeInChunks(
+            oss,
+            mwm,
+            &reporter,
+            ",",
+            DataExportDefaults,
+            4
+        );
+        QVERIFY( succeeded == true );
+        QVERIFY( reporter.getCallCount() == 6 );
+        const std::vector<int> expectedCallLog {
+            16,
+            33,
+            50,
+            66,
+            83,
+            100
+        };
+        QVERIFY( reporter.getPercentageLog() == expectedCallLog );
+        QVERIFY( oss.str() == getExpectedString() );
+    }
+
+    void nonZeroStartTimeReportsPercentageCorrectly()
+    {
+        MockWaveModel mwm({ DC, DC }, 16, 4);
+        StubReporter reporter { []() -> bool { return false; } };
+        std::ostringstream oss;
+        const auto writeSubSection = CSVStreamWriter::writeInChunks(
+            oss,
+            mwm,
+            {4, 20},
+            &reporter,
+            ",",
+            DataExportDefaults,
+            4
+        );
+        QVERIFY( reporter.getCallCount() == 4 );
+        const std::vector<int> expectedCallLog {
+            25,
+            50,
+            75,
+            100
+        };
+        QVERIFY( reporter.getPercentageLog() == expectedCallLog );
+        QVERIFY( writeSubSection == true );
+        const std::string expectedOutput {
+          "4,1,1\n"
+          "5,1,1\n"
+          "6,1,1\n"
+          "7,1,1\n"
+          "8,1,1\n"
+          "9,1,1\n"
+          "10,1,1\n"
+          "11,1,1\n"
+          "12,1,1\n"
+          "13,1,1\n"
+          "14,1,1\n"
+          "15,1,1\n"
+          "16,1,1\n"
+          "17,1,1\n"
+          "18,1,1\n"
+          "19,1,1"
+        };
+        QVERIFY( oss.str() == expectedOutput );
+    }
+
+    void multipleSelectionOutput()
+    {
+        MockWaveModel mwm({ DC, DC }, 16, 4);
+        StubReporter reporter { []() -> bool { return false; } };
+        std::ostringstream oss;
+        MultiSelection regions;
+        regions.addSelection({0, 2});
+        regions.addSelection({4, 6});
+        regions.addSelection({16, 18});
+//        qDebug("End frame: %lld", (long long int)mwm.getEndFrame());
+        const std::string expectedOutput {
+          "0,0,0\n"
+          "1,0,0\n"
+          "4,1,1\n"
+          "5,1,1\n"
+          "16,1,1\n"
+          "17,1,1"
+        };
+        const auto wroteMultiSection = CSVStreamWriter::writeInChunks(
+            oss,
+            mwm,
+            regions,
+            &reporter,
+            ",",
+            DataExportDefaults,
+            2
+        );
+        QVERIFY( wroteMultiSection == true );
+        QVERIFY( reporter.getCallCount() == 3 );
+        const std::vector<int> expectedCallLog { 33, 66, 100 };
+        QVERIFY( reporter.getPercentageLog() == expectedCallLog );
+//        qDebug("%s", oss.str().c_str());
+        QVERIFY( oss.str() == expectedOutput );
+    }
+
+    void writeSparseModel()
+    {
+        const auto pentatonicFromRoot = [](float midiPitch) {
+            return std::vector<float> {
+                0 + midiPitch,
+                2 + midiPitch,
+                4 + midiPitch,
+                7 + midiPitch,
+                9 + midiPitch
+            };
+        };
+        const auto cMajorPentatonic = pentatonicFromRoot(60.0);
+        NoteModel notes(8 /* sampleRate */, 4 /* resolution */);
+        sv_frame_t startFrame = 0;
+        for (const auto& note : cMajorPentatonic) {
+            notes.addPoint({startFrame, note, 4, 1.f, ""});
+            startFrame += 8;
+        }
+//        qDebug("Create Expected Output\n");
+
+        // NB. removed end line break
+        const auto expectedOutput = notes.toDelimitedDataString(",").trimmed();
+
+        StubReporter reporter { []() -> bool { return false; } };
+        std::ostringstream oss;
+//        qDebug("End frame: %lld", (long long int)notes.getEndFrame());
+//        qDebug("Write streaming\n");
+        const auto wroteSparseModel = CSVStreamWriter::writeInChunks(
+            oss,
+            notes,
+            &reporter,
+            ",",
+            DataExportDefaults,
+            2
+        );
+
+//        qDebug("\n%s\n", expectedOutput.toLocal8Bit().data());
+//        qDebug("\n%s\n", oss.str().c_str());
+        QVERIFY( wroteSparseModel == true );
+        QVERIFY( oss.str() == expectedOutput.toStdString() );
+    }
+};
+
+#endif