public async Task TestDriverConfigValuesPassedToDriverSucceeds()
{
// Arrange
var testConfigProvider = new TestConfigProvider();
var testDriverConfigName = "testDriverConfigName";
var testDriverConfigValue = "testDriverConfigValue";
var testConfig = new TextDisplayConfig()
{
DriverType = "MockDisplayDriver.MockDisplayDriver",
DriverAssembly = "MockDisplayDriver",
Height = 0,
Width = 0
};
testConfig.DriverConfigurationValues.Add(testDriverConfigName, testDriverConfigValue);
(testConfigProvider.Configs as List<TextDisplayConfig>).Add(testConfig);
List<ITextDisplay> returnedDisplays;
// Act
returnedDisplays = await TextDisplayManager.GetDisplaysForProvider(testConfigProvider) as List<ITextDisplay>;
// Assert
Assert.AreEqual(1, returnedDisplays.Count, "1 display should be returned");
var mockDriver = returnedDisplays[0] as MockDisplayDriver.MockDisplayDriver;
Assert.IsNotNull(mockDriver);
Assert.AreEqual(mockDriver.Config.DriverConfigurationValues[testDriverConfigName], testDriverConfigValue);
}
public IAsyncOperation<IEnumerable<TextDisplayConfig>> GetConfiguredDisplaysAsync()
{
return Task.Run(async () =>
{
var displaysConfig = new List<TextDisplayConfig>();
try
{
var configFile = await StorageFile.GetFileFromApplicationUriAsync(this.configFileLocation);
var xmlString = await FileIO.ReadTextAsync(configFile);
var xml = XElement.Parse(xmlString);
var displaysConfigXml = xml.Descendants("Screen");
foreach (var displayConfigXml in displaysConfigXml)
{
var displayConfig = new TextDisplayConfig();
var driverTypeAttribute = displayConfigXml.Attributes().Where(a => a.Name == "driverType").FirstOrDefault();
if (null != driverTypeAttribute)
{
displayConfig.DriverType = driverTypeAttribute.Value;
}
var commonConfigElement = displayConfigXml.Descendants("CommonConfiguration").FirstOrDefault();
if (null != commonConfigElement)
{
var heightElement = commonConfigElement.Descendants("Height").FirstOrDefault();
var widthElement = commonConfigElement.Descendants("Width").FirstOrDefault();
if (null != heightElement &&
null != widthElement)
{
displayConfig.Height = Convert.ToUInt32(heightElement.Value);
displayConfig.Width = Convert.ToUInt32(widthElement.Value);
}
}
var driverConfigElement = displayConfigXml.Descendants("DriverConiguration").FirstOrDefault();
foreach (var configValue in displayConfigXml.Descendants())
{
displayConfig.DriverConfigurationValues.Add(configValue.Name.ToString(), configValue.Value);
}
displaysConfig.Add(displayConfig);
}
}
catch (FileNotFoundException)
{
Debug.WriteLine("TextDisplayManager: Screen config file not found");
}
return displaysConfig as IEnumerable<TextDisplayConfig>;
}).AsAsyncOperation();
}
public IAsyncOperation <IEnumerable <TextDisplayConfig> > GetConfiguredDisplaysAsync()
{
return(Task.Run(async() =>
{
var displaysConfig = new List <TextDisplayConfig>();
try
{
var configFile = await StorageFile.GetFileFromApplicationUriAsync(this.configFileLocation);
var xmlString = await FileIO.ReadTextAsync(configFile);
var xml = XElement.Parse(xmlString);
var displaysConfigXml = xml.Descendants("Screen");
foreach (var displayConfigXml in displaysConfigXml)
{
var displayConfig = new TextDisplayConfig();
var driverTypeAttribute = displayConfigXml.Attributes().Where(a => a.Name == "driverType").FirstOrDefault();
if (null != driverTypeAttribute)
{
displayConfig.DriverType = driverTypeAttribute.Value;
}
var commonConfigElement = displayConfigXml.Descendants("CommonConfiguration").FirstOrDefault();
if (null != commonConfigElement)
{
var heightElement = commonConfigElement.Descendants("Height").FirstOrDefault();
var widthElement = commonConfigElement.Descendants("Width").FirstOrDefault();
if (null != heightElement &&
null != widthElement)
{
displayConfig.Height = Convert.ToUInt32(heightElement.Value);
displayConfig.Width = Convert.ToUInt32(widthElement.Value);
}
}
var driverConfigElement = displayConfigXml.Descendants("DriverConiguration").FirstOrDefault();
foreach (var configValue in displayConfigXml.Descendants())
{
displayConfig.DriverConfigurationValues.Add(configValue.Name.ToString(), configValue.Value);
}
displaysConfig.Add(displayConfig);
}
}
catch (FileNotFoundException)
{
Debug.WriteLine("TextDisplayManager: Screen config file not found");
}
return displaysConfig as IEnumerable <TextDisplayConfig>;
}).AsAsyncOperation());
}
public async Task TestOneConfigReturnsOneDisplaySucceeds()
{
// Arrange
var testConfigProvider = new TestConfigProvider();
var testConfig = new TextDisplayConfig()
{
DriverType = "MockDisplayDriver.MockDisplayDriver",
DriverAssembly = "MockDisplayDriver",
Height = 0,
Width = 0
};
(testConfigProvider.Configs as List<TextDisplayConfig>).Add(testConfig);
List<ITextDisplay> returnedDisplays;
// Act
returnedDisplays = await TextDisplayManager.GetDisplaysForProvider(testConfigProvider) as List<ITextDisplay>;
// Assert
Assert.AreEqual(1, returnedDisplays.Count, "1 display should be returned");
}
public HD44780GpioDriver(TextDisplayConfig config) :
base(config)
{
this.gpio = GpioController.GetDefault();
}
public HD44780GpioDriver(TextDisplayConfig config) :
base(config)
{
this.gpio = GpioController.GetDefault();
}
protected TextDisplayBase(TextDisplayConfig config)
{
this.config = config;
this.Height = this.config.Height;
this.Width = this.config.Width;
}
public MockDisplayDriver(TextDisplayConfig config)
{
this.Config = config;
this.height = config.Height;
this.width = config.Width;
}
protected TextDisplayBase(TextDisplayConfig config)
{
this.config = config;
this.Height = this.config.Height;
this.Width = this.config.Width;
}
public async Task TestNonExistentAssemblyDriverTypeFails()
{
// Arrange
var testConfigProvider = new TestConfigProvider();
var testConfig = new TextDisplayConfig()
{
DriverType = "NonExistentDriver",
DriverAssembly = "NonExistentAssembly",
Height = 0,
Width = 0
};
(testConfigProvider.Configs as List<TextDisplayConfig>).Add(testConfig);
List<ITextDisplay> returnedDisplays;
// Act
returnedDisplays = await TextDisplayManager.GetDisplaysForProvider(testConfigProvider) as List<ITextDisplay>;
// Assert
Assert.AreEqual(0, returnedDisplays.Count, "No displays should be returned");
}
public async Task TestWriteMessageToDriverSucceeds()
{
// Arrange
var testConfigProvider = new TestConfigProvider();
var testConfig = new TextDisplayConfig()
{
DriverType = "MockDisplayDriver.MockDisplayDriver",
DriverAssembly = "MockDisplayDriver",
Height = 0,
Width = 0
};
(testConfigProvider.Configs as List<TextDisplayConfig>).Add(testConfig);
var testMessage = "testMessage";
List<ITextDisplay> returnedDisplays;
// Act
returnedDisplays = await TextDisplayManager.GetDisplaysForProvider(testConfigProvider) as List<ITextDisplay>;
await returnedDisplays[0].WriteMessageAsync(testMessage, 0);
// Assert
Assert.AreEqual(1, returnedDisplays.Count, "1 display should be returned");
var mockDriver = returnedDisplays[0] as MockDisplayDriver.MockDisplayDriver;
Assert.IsNotNull(mockDriver, "Manager did not return mock driver");
Assert.AreEqual(testMessage, mockDriver.LastMessage);
}