public virtual void TestDefaultTessDataPathValidationForExecutable()
{
NUnit.Framework.Assert.That(() => {
String path = TEST_IMAGES_DIRECTORY + "numbers_01.jpg";
FileInfo imgFile = new FileInfo(path);
Tesseract4ExecutableOcrEngine engine = new Tesseract4ExecutableOcrEngine(GetTesseractDirectory(), new Tesseract4OcrEngineProperties
());
engine.DoImageOcr(imgFile);
}
, NUnit.Framework.Throws.InstanceOf <Tesseract4OcrException>().With.Message.EqualTo(Tesseract4OcrException.PATH_TO_TESS_DATA_IS_NOT_SET))
;
}
public virtual void TestDoTesseractOcrForIncorrectImageForExecutable()
{
NUnit.Framework.Assert.That(() => {
String path = TEST_IMAGES_DIRECTORY + "numbers_01";
FileInfo imgFile = new FileInfo(path);
Tesseract4ExecutableOcrEngine engine = new Tesseract4ExecutableOcrEngine(GetTesseractDirectory(), new Tesseract4OcrEngineProperties
().SetPathToTessData(GetTessDataDirectory()));
engine.DoTesseractOcr(imgFile, null, OutputFormat.HOCR);
}
, NUnit.Framework.Throws.InstanceOf <Tesseract4OcrException>().With.Message.EqualTo(MessageFormatUtil.Format(Tesseract4OcrException.CANNOT_READ_PROVIDED_IMAGE, new FileInfo(TEST_IMAGES_DIRECTORY + "numbers_01").FullName)))
;
}
public virtual void TestDoTesseractOcrForNonAsciiPathForExecutable()
{
String path = TEST_IMAGES_DIRECTORY + "tèst/noisy_01.png";
FileInfo imgFile = new FileInfo(path);
FileInfo outputFile = new FileInfo(TesseractOcrUtil.GetTempFilePath("test", ".hocr"));
Tesseract4OcrEngineProperties properties = new Tesseract4OcrEngineProperties();
properties.SetPathToTessData(GetTessDataDirectory());
properties.SetPreprocessingImages(false);
Tesseract4ExecutableOcrEngine engine = new Tesseract4ExecutableOcrEngine(GetTesseractDirectory(), properties
);
engine.DoTesseractOcr(imgFile, outputFile, OutputFormat.HOCR);
NUnit.Framework.Assert.IsTrue(File.Exists(System.IO.Path.Combine(outputFile.FullName)));
TesseractHelper.DeleteFile(outputFile.FullName);
NUnit.Framework.Assert.IsFalse(File.Exists(System.IO.Path.Combine(outputFile.FullName)));
}
private void TestSettingOsName(String osName)
{
String path = TEST_IMAGES_DIRECTORY + "numbers_01.jpg";
FileInfo imgFile = new FileInfo(path);
String tesseractDirectory = GetTesseractDirectory();
String osPropertyName = Environment.GetEnvironmentVariable("os.name") == null ? "OS" : "os.name";
String os = Environment.GetEnvironmentVariable(osPropertyName);
Environment.SetEnvironmentVariable(osPropertyName, osName);
try {
Tesseract4OcrEngineProperties properties = new Tesseract4OcrEngineProperties();
properties.SetPathToTessData(GetTessDataDirectory());
Tesseract4ExecutableOcrEngine engine = new Tesseract4ExecutableOcrEngine(tesseractDirectory, properties);
engine.DoTesseractOcr(imgFile, null, OutputFormat.HOCR);
}
finally {
Environment.SetEnvironmentVariable(osPropertyName, os);
}
}
