private static bool ConvertInput(InputItem item, IConsoleAdapter consoleOut, out object value, string input)
{
if (item.ReadInfo != null && item.ReadInfo.Options.Any())
return SelectOption(input, item.ReadInfo.Options, consoleOut, out value);
return ConvertString(input, item.Type, consoleOut, out value);
}
private static string MakeSelectPrompt(InputItem item, string prompt)
{
var options = item.ReadInfo.Options.Select(MakeOptionText);
var optionString = string.Format("[{0}]", string.Join(", ", options));
var displayPrompt = string.Format("{0}{1}{2}",
prompt,
string.IsNullOrWhiteSpace(prompt) ? string.Empty : " ",
optionString);
return AddPromptSuffix(displayPrompt);
}
internal static string FromItem(InputItem item)
{
if (item.ReadInfo == null)
return AddPromptSuffix(PropertyNameConverter.ToPrompt(item.Property));
var prompt = item.ReadInfo.Prompt ?? PropertyNameConverter.ToPrompt(item.Property);
if (item.ReadInfo.Options.Any())
return MakeOptionsPrompt(item, prompt);
return AddPromptSuffix(prompt);
}
public void InteractiveInputContinuesUntilGoodInputReceived()
{
_interface.SetInputStream(_goodStream);
var item = new InputItem
{
Name = "IntVal",
Property = IntProp,
Type = typeof(int),
ReadInfo = Read.Int().Prompt("prompt")
};
ReadInputItem.GetValue(item, _interface, _adapter);
Approvals.Verify(_interface.GetBuffer());
}
private static bool ApplyValidations(InputItem item, object value, IConsoleAdapter consoleOut)
{
if (item.ReadInfo != null)
{
var error = item.ReadInfo.GetValidationError(value);
if (error != null)
{
consoleOut.WrapLine(error);
return false;
}
}
return true;
}
public void ErrorIsDisplayedWhenInputIsInvalid()
{
_interface.SetInputStream(_goodStream);
_interface.InputIsRedirected = true;
var item = new InputItem
{
Name = "IntVal",
Property = IntProp,
Type = typeof(int),
ReadInfo = Read.Int().Prompt("prompt")
};
ReadInputItem.GetValue(item, _interface, _adapter);
Approvals.Verify(_interface.GetBuffer());
}
private static string MakeMenuPrompt(InputItem item, string prompt)
{
var promptBuilder = new StringBuilder();
if (item.ReadInfo.MenuHeading != null)
{
promptBuilder.AppendLine(item.ReadInfo.MenuHeading);
promptBuilder.AppendLine();
}
foreach (var option in item.ReadInfo.Options)
promptBuilder.AppendLine(MakeOptionText(option));
promptBuilder.AppendLine();
promptBuilder.Append(AddPromptSuffix(prompt));
return promptBuilder.ToString();
}
public void NoPropertyInfoGivesNoPromptText()
{
//Arrange
var inputItem = new InputItem
{
Name = "IntVal",
Property = null,
Type = typeof(int)
};
//Act
var result = ConstructPromptText.FromItem(inputItem);
//Assert
Assert.That(result, Is.EqualTo(": "));
}
public void InvalidReadReturnsFalse()
{
//Arrange
_interface.SetInputStream(MakeStream(new[] { "text" }));
_interface.InputIsRedirected = true;
var item = new InputItem
{
Name = "IntVal",
Property = IntProp,
Type = typeof(int)
};
//Act
object value;
var result = ReadValue.UsingReadLine(item, _interface, _adapter, out value);
//Assert
Assert.That(result, Is.False);
}
public void ErrorIsDisplayedWhenInputIsInvalid()
{
//Arrange
_interface.SetInputStream(MakeStream(new[] { "text" }));
_interface.InputIsRedirected = true;
var item = new InputItem
{
Name = "IntVal",
Property = IntProp,
Type = typeof(int),
ReadInfo = Read.Int().Prompt("prompt")
};
//Act
object value;
ReadValue.UsingReadLine(item, _interface, _adapter, out value);
//Assert
Approvals.Verify(_interface.GetBuffer());
}
public void NoPropertyInfoOnMenuGivesMenuText()
{
//Arrange
var inputItem = new InputItem
{
Name = "IntVal",
Property = null,
Type = typeof(int),
ReadInfo = Read.Int().Option(4, "A", "Four").Option(10, "B", "Ten").AsMenu("No Property")
};
//Act
var result = ConstructPromptText.FromItem(inputItem);
//Assert
var expected = @"No Property
A-Four
B-Ten
: ";
Assert.That(result, Is.EqualTo(expected));
}
public void ValidationsAreApplied()
{
_interface.SetInputStream(_validationStream);
var item = new InputItem
{
Name = "IntVal",
Property = IntProp,
Type = typeof(int),
ReadInfo = Read.Int().Validate(i => i > 10, "Value must be greater than 10")
};
ReadInputItem.GetValue(item, _interface, _adapter);
var value = ((Read<int>)item.Value).Value;
Assert.That(value, Is.EqualTo(11));
}
public void ValidationErrorMessageIsDisplayed()
{
_interface.SetInputStream(_validationStream);
var item = new InputItem
{
Name = "IntVal",
Property = IntProp,
Type = typeof(int),
ReadInfo = Read.Int().Validate(i => i > 10, "Value must be greater than 10")
};
ReadInputItem.GetValue(item, _interface, _adapter);
Approvals.Verify(_interface.GetBuffer());
}
public void TextIsConvertedToRequiredType()
{
_interface.SetInputStream(_goodStream);
var item = new InputItem
{
Name = "IntVal",
Property = IntProp,
Type = typeof(int)
};
ReadInputItem.GetValue(item, _interface, _adapter);
Assert.That(item.Value, Is.EqualTo(45));
}
public void StringCanBeRead()
{
_interface.SetInputStream(_goodStream);
var item = new InputItem
{
Name = "StringVal",
Property = StringProp,
Type = typeof(string)
};
ReadInputItem.GetValue(item, _interface, _adapter);
Assert.That(item.Value, Is.EqualTo("text"));
}
public void OptionInputIsNotCaseSensitive()
{
//Arrange
_interface.SetInputStream(MakeStream(new[] { "c" }));
var item = new InputItem
{
Name = "IntVal",
Property = IntProp,
Type = typeof(int),
ReadInfo = Read.Int().Prompt("prompt")
.Option(100, "B", "First")
.Option(200, "C", "Second")
.Option(300, "D", "Third")
};
//Act
object value;
ReadValue.UsingReadLine(item, _interface, _adapter, out value);
//Assert
Assert.That(value, Is.EqualTo(200));
}
public void ValidReadReturnsTrue()
{
//Arrange
_interface.SetInputStream(MakeStream(new[] { "text" }));
var item = new InputItem
{
Name = "StringVal",
Property = StringProp,
Type = typeof(string)
};
//Act
object value;
var result = ReadValue.UsingReadLine(item, _interface, _adapter, out value);
//Assert
Assert.That(result, Is.True);
}
private static string MakeOptionsPrompt(InputItem item, string prompt)
{
return !item.ReadInfo.ShowAsMenu
? MakeSelectPrompt(item, prompt)
: MakeMenuPrompt(item, prompt);
}
public void PromptIsTakenFromPropertyInfo()
{
//Arrange
var inputItem = new InputItem
{
Name = "IntVal",
Property = IntProp,
Type = typeof(int),
ReadInfo = Read.Int().Prompt("My prompt")
};
//Act
var result = ConstructPromptText.FromItem(inputItem);
//Assert
Assert.That(result, Is.EqualTo("My prompt: "));
}
public void PromptIsAutomaticallyDerivedFromPropertyName()
{
//Arrange
var inputItem = new InputItem
{
Name = "IntVal",
Property = IntProp,
Type = typeof(int)
};
//Act
var result = ConstructPromptText.FromItem(inputItem);
//Assert
Assert.That(result, Is.EqualTo("Int Val: "));
}
public void PromptCanDisplaySelectionAsMenu()
{
//Arrange
var inputItem = new InputItem
{
Name = "IntVal",
Property = IntProp,
Type = typeof(int),
ReadInfo = Read.Int().Option(4, "A", "Four").Option(10, "B", "Ten")
.AsMenu("Which value?")
};
//Act
var result = ConstructPromptText.FromItem(inputItem);
//Assert
var expected = @"Which value?
A-Four
B-Ten
Int Val: ";
Assert.That(result, Is.EqualTo(expected));
}
public void ValidReadReturnsTrue()
{
_interface.SetInputStream(_stringOnlyStream);
var item = new InputItem
{
Name = "StringVal",
Property = StringProp,
Type = typeof(string)
};
Assert.That(ReadInputItem.GetValue(item, _interface, _adapter), Is.True);
}
public void ValidationPassSetsValue()
{
//Arrange
_interface.SetInputStream(MakeStream(new[] { "11" }));
var item = new InputItem
{
Name = "IntVal",
Property = IntProp,
Type = typeof(int),
ReadInfo = Read.Int().Validate(i => i > 10, "Value must be greater than 10")
};
//Act
object value;
ReadValue.UsingReadLine(item, _interface, _adapter, out value);
//Assert
Assert.That(value, Is.EqualTo(11));
}
public void OptionsCanBeSpecified()
{
_interface.SetInputStream(_selectStream);
var item = new InputItem
{
Name = "IntVal",
Property = IntProp,
Type = typeof(int),
ReadInfo = Read.Int().Prompt("prompt")
.Option(1, "1", "First")
.Option(2, "2", "Second")
.Option(3, "3", "Third")
};
ReadInputItem.GetValue(item, _interface, _adapter);
Approvals.Verify(_interface.GetBuffer());
}
public void InvalidReadReturnsFalse()
{
_interface.SetInputStream(_stringOnlyStream);
_interface.InputIsRedirected = true;
var item = new InputItem
{
Name = "IntVal",
Property = IntProp,
Type = typeof(int)
};
Assert.That(ReadInputItem.GetValue(item, _interface, _adapter), Is.False);
}
public void PromptIsDisplayed()
{
_interface.SetInputStream(_goodStream);
var item = new InputItem
{
Name = "StringVal",
Property = StringProp,
Type = typeof(string),
ReadInfo = Read.String().Prompt("prompt")
};
ReadInputItem.GetValue(item, _interface, _adapter);
Approvals.Verify(_interface.GetBuffer());
}
public void NoPropertyInfoOnSelectionGivesSelectionText()
{
//Arrange
var inputItem = new InputItem
{
Name = "IntVal",
Property = null,
Type = typeof(int),
ReadInfo = Read.Int().Option(4, "A", "Four").Option(10, "B", "Ten")
};
//Act
var result = ConstructPromptText.FromItem(inputItem);
//Assert
Assert.That(result, Is.EqualTo("[A-Four, B-Ten]: "));
}
internal static bool UsingReadLine(InputItem item, IConsoleInInterface consoleIn, IConsoleAdapter consoleOut, out object value)
{
var input = consoleIn.ReadLine();
return ConvertInput(item, consoleOut, out value, input)
&& ApplyValidations(item, value, consoleOut);
}
public void OptionIsSelected()
{
_interface.SetInputStream(_selectStream);
var item = new InputItem
{
Name = "IntVal",
Property = IntProp,
Type = typeof(int),
ReadInfo = Read.Int().Prompt("prompt")
.Option(100, "B", "First")
.Option(200, "C", "Second")
.Option(300, "D", "Third")
};
ReadInputItem.GetValue(item, _interface, _adapter);
var value = ((Read<int>)item.Value).Value;
Assert.That(value, Is.EqualTo(200));
}
public void ValidationErrorMessageIsDisplayed()
{
//Arrange
_interface.SetInputStream(MakeStream(new[] { "10" }));
var item = new InputItem
{
Name = "IntVal",
Property = IntProp,
Type = typeof(int),
ReadInfo = Read.Int().Validate(i => i > 10, "Value must be greater than 10")
};
//Act
object value;
ReadValue.UsingReadLine(item, _interface, _adapter, out value);
//Assert
Approvals.Verify(_interface.GetBuffer());
}
