public void Does_not_throw_exception_when_value_of_matching_string_property_matches()
{
var table = new Table("Field", "Value");
table.AddRow("StringProperty", "Howard Roark");
var test = new ComparisonTest {StringProperty = "Howard Roark"};
var exceptionThrown = ExceptionWasThrownByThisComparison(table, test);
exceptionThrown.ShouldBeFalse();
}
public void Exception_returns_an_exception_for_one_error_when_there_is_one_difference()
{
var table = new Table("Field", "Value");
table.AddRow("StringProperty", "Howard Roark");
var test = new ComparisonTest {StringProperty = "Peter Keating"};
var exception = GetExceptionThrownByThisComparison(table, test);
exception.Message.ShouldEqual(
@"The following fields did not match:
StringProperty: Expected <Howard Roark>, Actual <Peter Keating>");
}
private static bool ExceptionWasThrownByThisComparison(Table table, ComparisonTest test)
{
var exception = false;
try
{
table.CompareToInstance(test);
}
catch (ComparisonException ex)
{
exception = true;
}
return exception;
}
private static ComparisonException GetExceptionThrownByThisComparison(Table table, ComparisonTest test)
{
try
{
table.CompareToInstance(test);
}
catch (ComparisonException ex)
{
return ex;
}
return null;
}
public void Throws_exception_when_value_of_matching_string_property_does_not_match()
{
var table = new Table("Field", "Value");
table.AddRow("StringProperty", "Howard Roark");
var test = new ComparisonTest {StringProperty = "Peter Keating"};
var exceptionThrown = ExceptionWasThrownByThisComparison(table, test);
exceptionThrown.ShouldBeTrue();
}
public void Throws_exception_when_first_row_matches_but_second_does_not()
{
var table = new Table("Field", "Value");
table.AddRow("StringProperty", "Howard Roark");
table.AddRow("IntProperty", "20");
var test = new ComparisonTest
{
StringProperty = "Howard Roark",
IntProperty = 10
};
var exceptionThrown = ExceptionWasThrownByThisComparison(table, test);
exceptionThrown.ShouldBeTrue();
}
public void Should_not_throw_an_exception_when_the_ToString_values_of_each_match()
{
var table = new Table("Field", "Value");
table.AddRow("StringProperty", "Howard Roark");
table.AddRow("IntProperty", "10");
table.AddRow("DateTimeProperty", "12/25/2010 12:00:00 AM");
var test = new ComparisonTest
{
StringProperty = "Howard Roark",
IntProperty = 10,
DateTimeProperty = new DateTime(2010, 12, 25)
};
var exceptionThrown = ExceptionWasThrownByThisComparison(table, test);
exceptionThrown.ShouldBeFalse();
}
public void Should_not_throw_an_exception_when_actual_value_is_null_and_expected_is_empty()
{
var table = new Table("Field", "Value");
table.AddRow("NullableField", "");
var test = new ComparisonTest
{
NullableField = null,
};
var exceptionThrown = ExceptionWasThrownByThisComparison(table, test);
exceptionThrown.ShouldBeFalse();
}
public void Exception_returns_a_descriptive_error_when_property_in_table_does_not_exist()
{
var table = new Table("Field", "Value");
table.AddRow("IDoNotExist", "Ok, mister");
var test = new ComparisonTest();
var exception = GetExceptionThrownByThisComparison(table, test);
exception.Message.ShouldEqual(@"The following fields did not match:
IDoNotExist: Property does not exist");
}