public void WhenFileIsEmpty_ThenReplaceNothing()
{
var sut = FileBuilder.InFileSystem.WithPath(GetAbsolutePath("ReplaceLine1.txt")).Build();
var result = sut.ReplaceLine(1, "New Line 1", GetAbsolutePath("ReplaceLine1-Output.txt"));
AssertFile.IsEmpty(result);
}
public void WhenFileHasOneLine_ThenDeleteLine()
{
var sut = FileBuilder.InFileSystem.WithText("Line 1").WithPath(GetAbsolutePath("DeleteLastLine2.txt")).Build();
var result = sut.DeleteLastLine(GetAbsolutePath("DeleteLastLine2-Output.txt"));
AssertFile.IsEmpty(result);
}
public void WhenFileIsEmpty_ThenDeleteNothing()
{
var sut = FileBuilder.InFileSystem.WithPath(GetAbsolutePath("DeleteLastLine1.txt")).Build();
var result = sut.DeleteLastLine(GetAbsolutePath("DeleteLastLine1-Output.txt"));
AssertFile.IsEmpty(result);
}
public void WhenFileIsNotEmpty_ThenAssertFalse()
{
var file = BaseDir.CreateFile("SizeEquals-Test1.txt", "A");
Assert.Throws <AssertionException>(() => AssertFile.IsEmpty(file));
}
public void WhenFileIsEmpty_ThenAssertTrue()
{
var file = BaseDir.CreateFile("SizeEquals-Test1.txt", string.Empty);
Assert.DoesNotThrow(() => AssertFile.IsEmpty(file));
}
public void WhenFileIsNull_ThenThrowException()
{
Assert.Throws <ArgumentNullException>(() => AssertFile.IsEmpty(null as FileInfo));
}