public void Test4(string values, int result)
{
prog = new Program();
var outcome = prog.PersistentFileClose(values);
Assert.True(outcome == -1, $"When trying to close a file in persistent mode: Trying to close a file which was not opened before should return -1 instead you returned: {outcome}");
outcome = prog.PersistentFileOpen(values);
if (outcome == result) //file could be opened or not
{
if (result == 0) // file should now be open
{
outcome = prog.PersistentFileClose("something weird");
Assert.True(outcome == -1, $"We have an open file but tried closing some other file which did not work, state: {outcome}");
outcome = prog.PersistentFileClose(values);
Assert.True(outcome == 0, $"We have an open file but closing it did not work, state: {outcome}");
outcome = prog.PersistentFileClose(values);
Assert.True(outcome == -1, "We tried closing an open file twice but the system does not return the correct state: -1");
}
}
else //file open did not work correctly
{
Assert.True(false, "File Opening is not working correctly! To close a persistent file it needs to be open first.");
}
}
public void Test3(string values, int result, int retries)
{
prog = new Program();
var outcome = prog.PersistentFileOpen(values);
Assert.True(outcome == result, $"When trying to open a file in persistent mode which requires an object variable: You should have returned state: {result} but did return {outcome}.");
if (retries > 0)
{
if (result == 0)
{
outcome = prog.PersistentFileOpen(values);
Assert.True(outcome == 1, "When trying to open a file in persistent mode: Opening a file the 2nd time but did not get correct response!");
}
else
{
outcome = prog.PersistentFileOpen(values);
Assert.True(outcome == result, $"When trying to open a file in persistent mode: You should have returned file state: {result} but did return {outcome}.");
}
}
else
{
prog = new Program();
outcome = prog.PersistentFileOpen(values);
Assert.True(outcome == result, $"When trying to open a file in persistent mode: Opening the file a 2nd time after closing the object once. You should have returned file state:{result} but did return {outcome}.");
}
try
{
prog.PersistentFileClose(values);
}
catch (Exception) //this needed to be added to stop some files from remaining open after not disposing the stream correctly
{ }
}
public void Test5(string values, int result, int lines, string line)
{
prog = new Program();
var outcome = prog.PersistentFileRead(lines);
Assert.True(outcome.Length == 0, $"When trying to read a file in persistent mode: Trying to read from a file which is not open did return {outcome.Length} lines.");
var openCheck = prog.PersistentFileOpen(values);
Assert.True(openCheck == result, $"When trying to read a file in persistent mode: Trying to open a file for persistent access did not work.");
if (result != 0)
{
return;
}
openCheck = prog.PersistentFileClose(values);
Assert.True(openCheck == result, $"Trying to close a file for persistent access did not work.");
if (result != 0)
{
return;
}
outcome = prog.PersistentFileRead(lines);
Assert.True(outcome.Length == 0, $"Trying to read from a file which is not open did return {outcome.Length} lines.");
prog.PersistentFileOpen(values);
outcome = prog.PersistentFileRead(lines);
Assert.True(outcome[lines - 1].Trim().Equals(line.Trim()), $"From the file, you should have returned {lines} lines where line nr.{lines - 1} is:\n {line} \nbut did return:\n {outcome[lines - 1]}.");
Assert.True(outcome[lines - 1].Trim().Equals(line.Trim()), $"Reading a second time should return the same result.\nFrom the file, you should have returned {lines} lines where line nr.{lines - 1} is:\n {line} \nbut did return:\n {outcome[lines - 1]}.");
openCheck = prog.PersistentFileClose(values.Trim());
Assert.True(openCheck == result, $"Trying to close a file for persistent access did not work.");
}
public UnitTest1()
{
prog = new Program();
}
