public async Task ProviderTest_ThrowsErrorIfFileDoesntExists()
{
// ARRANGE
ILogger <FileQrProvider> logger = new Logger <FileQrProvider>(new NullLoggerFactory());
IQrProvider provider = new FileQrProvider(logger);
string path = Path.Combine(Directory.GetCurrentDirectory(), "file_which_doesnt_exists.png");
// ACT
Func <Task> task = async() =>
{
await provider.ProvideQrAsync(path);
};
// ASSERT
await Assert.ThrowsExceptionAsync <ApplicationException>(task);
}
public async Task ProviderTest_FileExists()
{
// ARRANGE
ILogger <FileQrProvider> logger = new Logger <FileQrProvider>(new NullLoggerFactory());
IQrProvider provider = new FileQrProvider(logger);
string fileName = "code.png";
string path = Path.Combine(Directory.GetCurrentDirectory(), fileName);
// ACT
var result = await provider.ProvideQrAsync(path);
// ASSERT
Assert.IsNotNull(result);
Assert.AreEqual(fileName, result.Name);
Assert.IsTrue(result.Content.Length > 0);
}
public async Task ProviderTest_ThrowsErrorIfArgumentIsNull()
{
// ARRANGE
ILogger <FileQrProvider> logger = new Logger <FileQrProvider>(new NullLoggerFactory());
IQrProvider provider = new FileQrProvider(logger);
string path = null;
// ACT
Func <Task> task = async() =>
{
await provider.ProvideQrAsync(path);
};
// ASSERT
await Assert.ThrowsExceptionAsync <ApplicationException>(task);
}
