public static string GetAssertMessage <T>(
IEnumerable <T> expected,
IEnumerable <T> actual,
IEqualityComparer <T> comparer = null,
Func <T, string> toString = null,
string separator = ",\r\n",
string expectedValueSourcePath = null,
int expectedValueSourceLine = 0)
{
if (toString == null)
{
toString = new Func <T, string>(obj => (obj != null) ? obj.ToString() : "<null>");
}
var actualString = string.Join(separator, actual.Select(toString));
var message = new StringBuilder();
message.AppendLine();
message.AppendLine("Actual:");
message.AppendLine(actualString);
message.AppendLine("Differences:");
message.AppendLine(DiffUtil.DiffReport(expected, actual, comparer, toString, separator));
string link;
if (TryGenerateExpectedSourceFielAndGetDiffLink(actualString, expected.Count(), expectedValueSourcePath, expectedValueSourceLine, out link))
{
message.AppendLine(link);
}
return(message.ToString());
}
public static string GetAssertMessage <T>(
IEnumerable <T> expected,
IEnumerable <T> actual,
IEqualityComparer <T> comparer = null,
Func <T, string> itemInspector = null,
string itemSeparator = null,
string expectedValueSourcePath = null,
int expectedValueSourceLine = 0)
{
if (itemInspector == null)
{
if (expected is IEnumerable <byte> )
{
itemInspector = b => $"0x{b:X2}";
}
else if (expected is IEnumerable <string> )
{
itemInspector = new Func <T, string>(obj => (obj != null) ? string.Format("\"{0}\"", obj.ToString()) : "<null>");
}
else
{
itemInspector = new Func <T, string>(obj => (obj != null) ? obj.ToString() : "<null>");
}
}
if (itemSeparator == null)
{
if (expected is IEnumerable <byte> )
{
itemSeparator = ", ";
}
else
{
itemSeparator = ",\r\n";
}
}
var expectedString = string.Join(itemSeparator, expected.Select(itemInspector));
var actualString = string.Join(itemSeparator, actual.Select(itemInspector));
var message = new StringBuilder();
message.AppendLine();
message.AppendLine("Expected:");
message.AppendLine(expectedString);
message.AppendLine("Actual:");
message.AppendLine(actualString);
message.AppendLine("Differences:");
message.AppendLine(DiffUtil.DiffReport(expected, actual, comparer, itemInspector, itemSeparator));
string link;
if (TryGenerateExpectedSourceFileAndGetDiffLink(actualString, expected.Count(), expectedValueSourcePath, expectedValueSourceLine, out link))
{
message.AppendLine(link);
}
return(message.ToString());
}
public static string GetAssertMessage <T>(
IEnumerable <T> expected,
IEnumerable <T> actual,
IEqualityComparer <T> comparer = null,
Func <T, string> itemInspector = null,
string itemSeparator = null,
string expectedValueSourcePath = null,
int expectedValueSourceLine = 0)
{
if (itemInspector == null)
{
if (typeof(T) == typeof(byte))
{
itemInspector = b => $"0x{b:X2}";
}
else
{
itemInspector = new Func <T, string>(obj => (obj != null) ? obj.ToString() : "<null>");
}
}
if (itemSeparator == null)
{
if (typeof(T) == typeof(byte))
{
itemSeparator = ", ";
}
else
{
itemSeparator = "," + Environment.NewLine;
}
}
var expectedString = string.Join(itemSeparator, expected.Take(10).Select(itemInspector));
var actualString = string.Join(itemSeparator, actual.Select(itemInspector));
var message = new StringBuilder();
message.AppendLine();
message.AppendLine("Expected:");
message.AppendLine(expectedString);
if (expected.Count() > 10)
{
message.AppendLine("... truncated ...");
}
message.AppendLine("Actual:");
message.AppendLine(actualString);
message.AppendLine("Differences:");
message.AppendLine(DiffUtil.DiffReport(expected, actual, itemSeparator, comparer, itemInspector));
if (TryGenerateExpectedSourceFileAndGetDiffLink(actualString, expected.Count(), expectedValueSourcePath, expectedValueSourceLine, out var link))
{
message.AppendLine(link);
}
return(message.ToString());
}
public static string GetAssertMessage <T>(
IEnumerable <T> expected,
IEnumerable <T> actual,
Func <T, T, bool> comparer = null,
Func <T, string> itemInspector = null,
string itemSeparator = null,
string expectedValueSourcePath = null,
int expectedValueSourceLine = 0)
{
if (itemInspector == null)
{
if (expected is IEnumerable <byte> )
{
itemInspector = b => $"0x{b:X2}";
}
else
{
itemInspector = new Func <T, string>(obj => (obj != null) ? obj.ToString() : "<null>");
}
}
if (itemSeparator == null)
{
if (expected is IEnumerable <byte> )
{
itemSeparator = ", ";
}
else
{
itemSeparator = ",\r\n";
}
}
var message = new StringBuilder();
message.AppendLine();
message.AppendLine("Actual:");
message.AppendLine(string.Join(itemSeparator, actual.Select(itemInspector)));
message.AppendLine();
message.AppendLine("Expected:");
message.AppendLine(string.Join(itemSeparator, expected.Select(itemInspector)));
message.AppendLine();
message.AppendLine("Diff:");
message.Append(DiffUtil.DiffReport(expected, actual, comparer, itemInspector, itemSeparator));
return(message.ToString());
}
public static string GetAssertMessage <T>(IEnumerable <T> expected, IEnumerable <T> actual, IEqualityComparer <T> comparer = null, Func <T, string> toString = null, string separator = ",\r\n")
{
if (toString == null)
{
toString = new Func <T, string>(obj => obj.ToString());
}
var message = new StringBuilder();
message.AppendLine();
message.AppendLine("Actual:");
message.AppendLine(string.Join(separator, actual.Select(toString)));
message.AppendLine("Differences:");
message.AppendLine(DiffUtil.DiffReport(expected, actual, comparer, toString, separator));
return(message.ToString());
}
public static string GetAssertMessage <T>(
IEnumerable <T> expected,
IEnumerable <T> actual,
IEqualityComparer <T> comparer = null,
Func <T, string> toString = null,
string separator = ",\r\n",
string expectedValueSourcePath = null,
int expectedValueSourceLine = 0)
{
if (toString == null)
{
toString = new Func <T, string>(obj => (obj != null) ? obj.ToString() : "<null>");
}
var actualString = string.Join(separator, actual.Select(toString));
var message = new StringBuilder();
message.AppendLine();
message.AppendLine("Actual:");
message.AppendLine(actualString);
message.AppendLine("Differences:");
message.AppendLine(DiffUtil.DiffReport(expected, actual, comparer, toString, separator));
// add a link to a .cmd file that opens a diff tool:
if (!string.IsNullOrEmpty(DiffToolPath) && expectedValueSourcePath != null && expectedValueSourceLine != 0)
{
var actualFile = Path.GetTempFileName();
var testFileLines = File.ReadAllLines(expectedValueSourcePath);
File.WriteAllLines(actualFile, testFileLines.Take(expectedValueSourceLine));
File.AppendAllText(actualFile, actualString);
File.AppendAllLines(actualFile, testFileLines.Skip(expectedValueSourceLine + expected.Count()));
var compareCmd = Path.GetTempFileName() + ".cmd";
File.WriteAllText(compareCmd, string.Format("\"{0}\" \"{1}\" \"{2}\"", DiffToolPath, actualFile, expectedValueSourcePath));
message.AppendLine("file://" + compareCmd);
}
return(message.ToString());
}