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Stitching function unit tests

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This commit is contained in:
Jakub Melka
2019-03-10 10:54:04 +01:00
parent 234b7c77f7
commit 214af0629d
3 changed files with 204 additions and 3 deletions
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112
UnitTests/tst_lexicalanalyzertest.cpp
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@ -50,6 +50,7 @@ private slots:
void test_lzw_filter();
void test_sampled_function();
void test_exponential_function();
void test_stitching_function();
private:
void scanWholeStream(const char* stream);
@ -845,6 +846,117 @@ void LexicalAnalyzerTest::test_exponential_function()
}, pdf::PDFParserException);
}
void LexicalAnalyzerTest::test_stitching_function()
{
{
QByteArray data = " << "
" /FunctionType 3 "
" /Domain [ 0 1 ] "
" /Bounds [ 0.5 ] "
" /Encode [ 0 0.5 0.5 1.0 ] "
" /Functions [ /Identity << /FunctionType 2 /Domain [ 0.5 1.0 ] /N 2.0 >> ] "
" >> ";
pdf::PDFDocument document;
pdf::PDFParser parser(data, nullptr, pdf::PDFParser::None);
pdf::PDFFunctionPtr function = pdf::PDFFunction::createFunction(&document, parser.getObject());
QVERIFY(function);
for (double value = -1.0; value <= 3.0; value += 0.01)
{
const double clampedValue = qBound(0.0, value, 1.0);
const double expected = clampedValue < 0.5 ? clampedValue : clampedValue * clampedValue;
double actual = 0.0;
QVERIFY(function->apply(&value, &value + 1, &actual, &actual + 1));
QVERIFY(qFuzzyCompare(expected, actual));
}
}
QVERIFY_EXCEPTION_THROWN(
{
QByteArray data = " << "
" /FunctionType 3 "
" /Domain [ 0 1 ] "
" /Bounds [ 0.5 ] "
" /Encode [ 0 0.5 0.5 ] "
" /Functions [ /Identity << /FunctionType 2 /Domain [ 0.5 1.0 ] /N 2.0 >> ] "
" >> ";
pdf::PDFDocument document;
pdf::PDFParser parser(data, nullptr, pdf::PDFParser::None);
pdf::PDFFunctionPtr function = pdf::PDFFunction::createFunction(&document, parser.getObject());
QVERIFY(!function);
}, pdf::PDFParserException);
QVERIFY_EXCEPTION_THROWN(
{
QByteArray data = " << "
" /FunctionType 3 "
" /Domain [ 0 ] "
" /Bounds [ 0.5 ] "
" /Encode [ 0 0.5 0.5 1.0 ] "
" /Functions [ /Identity << /FunctionType 2 /Domain [ 0.5 1.0 ] /N 2.0 >> ] "
" >> ";
pdf::PDFDocument document;
pdf::PDFParser parser(data, nullptr, pdf::PDFParser::None);
pdf::PDFFunctionPtr function = pdf::PDFFunction::createFunction(&document, parser.getObject());
QVERIFY(!function);
}, pdf::PDFParserException);
QVERIFY_EXCEPTION_THROWN(
{
QByteArray data = " << "
" /FunctionType 3 "
" /Domain [ 0 1 ] "
" /Bounds [ 0.5 0.5 ] "
" /Encode [ 0 0.5 0.5 1.0 ] "
" /Functions [ /Identity << /FunctionType 2 /Domain [ 0.5 1.0 ] /N 2.0 >> ] "
" >> ";
pdf::PDFDocument document;
pdf::PDFParser parser(data, nullptr, pdf::PDFParser::None);
pdf::PDFFunctionPtr function = pdf::PDFFunction::createFunction(&document, parser.getObject());
QVERIFY(!function);
}, pdf::PDFParserException);
QVERIFY_EXCEPTION_THROWN(
{
QByteArray data = " << "
" /FunctionType 3 "
" /Domain [ 0 1 ] "
" /Encode [ 0 0.5 0.5 1.0 ] "
" /Functions [ /Identity << /FunctionType 2 /Domain [ 0.5 1.0 ] /N 2.0 >> ] "
" >> ";
pdf::PDFDocument document;
pdf::PDFParser parser(data, nullptr, pdf::PDFParser::None);
pdf::PDFFunctionPtr function = pdf::PDFFunction::createFunction(&document, parser.getObject());
QVERIFY(!function);
}, pdf::PDFParserException);
QVERIFY_EXCEPTION_THROWN(
{
QByteArray data = " << "
" /FunctionType 3 "
" /Domain [ 0 1 ] "
" /Bounds [ 0.5 ] "
" /Functions [ /Identity << /FunctionType 2 /Domain [ 0.5 1.0 ] /N 2.0 >> ] "
" >> ";
pdf::PDFDocument document;
pdf::PDFParser parser(data, nullptr, pdf::PDFParser::None);
pdf::PDFFunctionPtr function = pdf::PDFFunction::createFunction(&document, parser.getObject());
QVERIFY(!function);
}, pdf::PDFParserException);
}
void LexicalAnalyzerTest::scanWholeStream(const char* stream)
{
pdf::PDFLexicalAnalyzer analyzer(stream, stream + strlen(stream));