Function parseBlocks

format_test.go:428–479

parseBlocks parses input into a slice, where: - incase entry contains a newline, its a stacktrace - incase entry contains no newline, its a solo line. Detecting stack boundaries only works incase the WithStack-calls are to be found on the same line, thats why it is optionally here. Example use: f

(input string, detectStackboundaries bool)

// }
//
func parseBlocks(input string, detectStackboundaries bool) ([]string, error) {
	var blocks []string

	stack := ""
	wasStack := false
	lines := map[string]bool{} // already found lines

	for _, l := range strings.Split(input, "\n") {
		isStackLine := stackLineR.MatchString(l)

		switch {
		case !isStackLine && wasStack:
			blocks = append(blocks, stack, l)
			stack = ""
			lines = map[string]bool{}
		case isStackLine:
			if wasStack {
				// Detecting two stacks after another, possible cause lines match in
				// our tests due to WithStack(WithStack(io.EOF)) on same line.
				if detectStackboundaries {
					if lines[l] {
						if len(stack) == 0 {
							return nil, errors.New("len of block must not be zero here")
						}

						blocks = append(blocks, stack)
						stack = l
						lines = map[string]bool{l: true}
						continue
					}
				}

				stack = stack + "\n" + l
			} else {
				stack = l
			}
			lines[l] = true
		case !isStackLine && !wasStack:
			blocks = append(blocks, l)
		default:
			return nil, errors.New("must not happen")
		}

		wasStack = isStackLine
	}

	// Use up stack
	if stack != "" {
		blocks = append(blocks, stack)
	}
	return blocks, nil
}

func testFormatCompleteCompare(t *testing.T, n int, arg interface{}, format string, want []string, detectStackBoundaries bool) {
	gotStr := fmt.Sprintf(format, arg)