// It may return the (non-nil) error from the same call or return the error (and n == 0) from a subsequent call.
// Callers should always process the n > 0 bytes returned before considering the error err.
// Doing so correctly handles I/O errors that happen after reading some bytes and also both of the allowed EOF behaviors.
func (r *RingBuffer) Read(p []byte) (n int, err error) {
	if len(p) == 0 {
		return 0, r.readErr(false)
	}

	r.mu.Lock()

// of errors into a single maximal error with in the list.
func TestReduceErrs(t *testing.T) {
	canceledErrs := make([]error, 0, 5)
	for i := 0; i < 5; i++ {
		canceledErrs = append(canceledErrs, fmt.Errorf("error %d: %w", i, context.Canceled))
	}
	// List all of all test cases to validate various cases of reduce errors.
	testCases := []struct {
		errs        []error
		ignoredErrs []error
		err         error
	}{

	var tmpObj simdjson.Object
	for {
		var in simdjson.Stream
		select {
		case in = <-r.input:
		case <-r.exitReader:
			return
		}
		if in.Error != nil && in.Error != io.EOF {
			r.err = &in.Error
			return
		}
		if in.Value == nil {
			if in.Error == io.EOF {
				return
			}
			continue
		}
		i := in.Value.Iter()
	readloop:
		for {
			var next simdjson.Iter

pkg bufio, method (ReadWriter) ReadString(uint8) (string, error)
pkg bufio, method (ReadWriter) UnreadByte() error
pkg bufio, method (ReadWriter) UnreadRune() error
pkg bufio, method (ReadWriter) Write([]uint8) (int, error)
pkg bufio, method (ReadWriter) WriteByte(uint8) error
pkg bufio, method (ReadWriter) WriteRune(int32) (int, error)
pkg bufio, method (ReadWriter) WriteString(string) (int, error)
pkg bufio, type ReadWriter struct

	}

	return extract(strings.ToUpper(e.Timeword), t)
}

func errUnsupportedCast(fromType, toType string) error {
	return fmt.Errorf("Cannot cast from %v to %v", fromType, toType)
}

func errCastFailure(msg string) error {
	return fmt.Errorf("Error casting: %s", msg)
}

// Allowed cast types
const (
	castBool      = "BOOL"
	castInt       = "INT"
	castInteger   = "INTEGER"

	if db5.Error != nil {
		t.Errorf("Should not raise error for join where identical fields in different tables. Error: %s", db5.Error.Error())
	}

	var users6 []User

			switch {
			case testCase.expectedErr == nil:
				if err != nil {
					t.Errorf("error: expected = <nil>, got = %v", err)
				}
			case err == nil:
				t.Errorf("error: expected = %v, got = <nil>", testCase.expectedErr)
			case testCase.expectedErr.Error() != err.Error():
				t.Errorf("error: expected = %v, got = %v", testCase.expectedErr, err)
			}
		})
	}
}

	fw *flate.Writer
}

func (w *pooledFlateWriter) Write(p []byte) (n int, err error) {
	w.mu.Lock()
	defer w.mu.Unlock()
	if w.fw == nil {
		return 0, errors.New("Write after Close")
	}
	return w.fw.Write(p)
}

func (w *pooledFlateWriter) Close() error {
	w.mu.Lock()
	defer w.mu.Unlock()
	var err error
	if w.fw != nil {
		err = w.fw.Close()
		flateWriterPool.Put(w.fw)
		w.fw = nil
	}

	for _, test := range badLexTests {
		input := NewInput(test.error)
		input.Push(NewTokenizer(test.error, strings.NewReader(test.input), nil))
		err := firstError(input)
		if err == nil {
			t.Errorf("%s: got no error", test.error)
			continue
		}
		if !strings.Contains(err.Error(), test.error) {
			t.Errorf("got error %q expected %q", err.Error(), test.error)
		}
	}
}

	}); err != nil {
		t.Errorf("failed to replace item content, got error: %v", err)
	}

	if count := tx.Model(&item).Association("Contents").Count(); count != 3 {
		t.Errorf("expected %d contents, got %d", 3, count)
	}

	var contents []ItemContent
	if err := tx.Find(&contents).Error; err != nil {
		t.Errorf("failed to find contents, got error: %v", err)
	}
	if len(contents) != 3 {