public void TextFileProcessor_ParseData_GivenEmptyStream_ShouldThrowException()
{
// ARRANGE
TextFileProcessor processor = new TextFileProcessor();
Stream emptyStream = new MemoryStream(System.Text.Encoding.UTF8.GetBytes(string.Empty));
// ACT
// No act as we're checking an exception
// ASSERT
Assert.Throws <DataLoadException>(() => processor.ParseData(emptyStream), "The method should have thrown an exception.");
} // end test
public void TextFileProcessor_ParseData_GivenValidMultiLineStream_ShouldReturnParsedLines()
{
// ARRANGE
TextFileProcessor processor = new TextFileProcessor();
IEnumerable <DataItem> results = null;
Stream fakeStream = new MemoryStream(System.Text.Encoding.UTF8.GetBytes("[2017-12-13 09:42:23.244 INFO - Data Updated] Something fun happened." + Environment.NewLine + "[2017-12-13 11:26:19.583 INFO - Data Updated] Something different happened later."));
// ACT
results = processor.ParseData(fakeStream);
// ASSERT
Assert.AreEqual(2, results.Count(), "There should have been exactly two results.");
} // end test
public void TextFileProcessor_ParseData_GivenValidSingleLineStream_ShouldReturnParsedLine()
{
// ARRANGE
TextFileProcessor processor = new TextFileProcessor();
IEnumerable <DataItem> results = null;
Stream fakeStream = new MemoryStream(System.Text.Encoding.UTF8.GetBytes("[2017-12-13 09:42:23.244 INFO - Data Updated] Something fun happened."));
// ACT
results = processor.ParseData(fakeStream);
// ASSERT
Assert.AreEqual(1, results.Count(), "There should only have been one result.");
} // end test
public void TextFileProcessor_ParseData_GivenSingleLineString_ShouldReturnOneResultOnly()
{
// ARRANGE
TextFileProcessor processor = new TextFileProcessor();
IEnumerable <DataItem> results = null;
string fakeString = "[2017-12-13 09:42:23.244 INFO - Data Updated] Something fun happened.";
// ACT
results = processor.ParseData(fakeString);
// ASSERT
Assert.AreEqual(1, results.Count(), "There should only have been one result.");
} // end test
public void TextFileProcessor_ParseData_GivenMultiLineStringWithTrailingEmptyLine_ShouldTrimExtraLine()
{
// ARRANGE
TextFileProcessor processor = new TextFileProcessor();
IEnumerable <DataItem> results = null;
string fakeString = "[2017-12-13 09:42:23.244 INFO - Data Updated] Something fun happened." + Environment.NewLine + "[2017-12-13 11:26:19.583 INFO - Data Updated] Something different happened later." + Environment.NewLine;
// ACT
results = processor.ParseData(fakeString);
// ASSERT
Assert.AreEqual(2, results.Count(), "There should only be two results and the trailing newline ignored.");
} // end test
public void TextFileProcessor_ParseData_GivenMultiLineString_ShouldBuildMultipleResults()
{
// ARRANGE
TextFileProcessor processor = new TextFileProcessor();
IEnumerable <DataItem> results = null;
string fakeString = "[2017-12-13 09:42:23.244 INFO - Data Updated] Something fun happened." + Environment.NewLine + "[2017-12-13 11:26:19.583 INFO - Data Updated] Something different happened later.";
// ACT
results = processor.ParseData(fakeString);
// ASSERT
Assert.AreEqual(2, results.Count(), "There should have been two results built from the input.");
} // end test