public TextExtractionResults DoOcr(byte[] image)
{
Azure.ComputerVisions engine = new Azure.ComputerVisions();
engine.Url = "https://uksouth.api.cognitive.microsoft.com/";
engine.AppKey = Config["azure_accesskey"];
return(engine.Extract(image));
}
public void Mocked_HappyPath_2()
{
Azure.ComputerVisions engine = null;
byte[] inputpicture = new byte[] { 0, 1, 1, 0 };
string pathSample = System.IO.Path.Combine(util.Util.GetProjectDir(), "Data\\Azure\\SampleResponse.json");
string jsonFake = System.IO.File.ReadAllText(pathSample);
string appKey = Guid.NewGuid().ToString();
string url = Guid.NewGuid().ToString();
Mock <Azure.ComputerVisions> mocked = new Mock <Azure.ComputerVisions>();
Func <byte[], string> fnGetJsonFromAzure = delegate(byte[] image)
{
//Verify that the function has received the picture byte that was intended
CollectionAssert.AreEqual(inputpicture, image);
//We are bypassing the live call to Azure by using fake json
return(jsonFake);
};
mocked.Setup(e => e.GetJsonFromAzure(It.IsAny <byte[]>())).Returns <byte[]>(fnGetJsonFromAzure);
engine = mocked.Object;
engine.Url = url;
engine.AppKey = appKey;
var resultsFromOcr = engine.Extract(inputpicture);
var txtIDRH = resultsFromOcr.Blocks.First(t => t.Text.Contains("IDRH"));
Assert.IsTrue(txtIDRH.X1 > 1020 && txtIDRH.X2 < 1108);
Assert.IsTrue(txtIDRH.Y1 > 85 && txtIDRH.Y2 < 115);
Assert.AreEqual(6, resultsFromOcr.Sentences.Length);
Assert.IsTrue(resultsFromOcr.Sentences[0].ToString().Contains("IDRH"));
Assert.IsTrue(resultsFromOcr.Sentences[5].ToString().Contains("regardless"));
Assert.AreEqual(1, resultsFromOcr.Paragraphs.Length);
}
public void Live_InvalidAppKey()
{
Azure.ComputerVisions engine = new Azure.ComputerVisions();
engine.Url = "https://uksouth.api.cognitive.microsoft.com/";
engine.AppKey = "some invalid key";
string pathSample = System.IO.Path.Combine(util.Util.GetProjectDir(), "Data\\pics\\NonReadable.PNG");
byte[] raw = System.IO.File.ReadAllBytes(pathSample);
var rsOuter = engine.Extract(raw);
//We will not receive an Exception. Azure will return a custom JSON with the error desscription
}
public void Live_InvalidPicture()
{
Azure.ComputerVisions engine = new Azure.ComputerVisions();
engine.Url = "https://uksouth.api.cognitive.microsoft.com/";
engine.AppKey = Environment.GetEnvironmentVariable("azureocr_key");
//We are passing the contents of the TXT file
string pathInvalidPictureFile = System.IO.Path.Combine(util.Util.GetProjectDir(), "Data\\pics\\Readme.txt");
byte[] raw = System.IO.File.ReadAllBytes(pathInvalidPictureFile);
var rsOuter = engine.Extract(raw);
//We will not receive an Exception. Azure will return a custom JSON with the error desscription
}
public void Live_HappyPath()
{
Azure.ComputerVisions engine = new Azure.ComputerVisions();
engine.Url = "https://uksouth.api.cognitive.microsoft.com/";
engine.AppKey = Environment.GetEnvironmentVariable("azureocr_key");
string pathSample = System.IO.Path.Combine(util.Util.GetProjectDir(), "Data\\pics\\NonReadable.PNG");
byte[] raw = System.IO.File.ReadAllBytes(pathSample);
var rsOuter = engine.Extract(raw);
Assert.AreEqual(62, rsOuter.Blocks.Length);
var txtIDRH = rsOuter.Blocks.First(t => t.Text.Contains("IDRH"));
Assert.IsTrue(txtIDRH.X1 > 1020 && txtIDRH.X2 < 1108);
Assert.IsTrue(txtIDRH.Y1 > 85 && txtIDRH.Y2 < 115);
}
public void ProcessJson()
{
Azure.ComputerVisions engine = new Azure.ComputerVisions();
string pathSample = System.IO.Path.Combine(util.Util.GetProjectDir(), "Data\\Azure\\SampleResponse.json");
string json = System.IO.File.ReadAllText(pathSample);
var rsOuter = engine.ExtractEntitiesFromJson(json);
Assert.AreEqual(62, rsOuter.Blocks.Length);
var txtIDRH = rsOuter.Blocks.First(t => t.Text.Contains("IDRH"));
Assert.IsTrue(txtIDRH.X1 > 1020 && txtIDRH.X2 < 1108);
Assert.IsTrue(txtIDRH.Y1 > 85 && txtIDRH.Y2 < 115);
Assert.AreEqual(6, rsOuter.Sentences.Length);
Assert.IsTrue(rsOuter.Sentences[0].ToString().Contains("IDRH"));
Assert.IsTrue(rsOuter.Sentences[5].ToString().Contains("regardless"));
Assert.AreEqual(1, rsOuter.Paragraphs.Length);
}
