testRemaining{5, 5},
			testRead{5, "hello", io.EOF},
			testRemaining{0, 0},
		},
	}, {
		maker: makeReg{"hello, world", 50},
		tests: []testFnc{
			testRemaining{50, 50},
			testRead{7, "hello, ", nil},
			testRemaining{43, 43},
			testRead{5, "world", nil},
			testRemaining{38, 38},
			testWriteTo{nil, 0, io.ErrUnexpectedEOF},
			testRead{1, "", io.ErrUnexpectedEOF},

    }

    // Test validation with valid cron expressions
    @Test
    public void test_validCronExpressions() {
        TestBean bean = new TestBean();

        // Test null value (should be valid)
        bean.setCronExpression(null);
        Set<ConstraintViolation<TestBean>> violations = validator.validate(bean);
        assertTrue(violations.isEmpty());

        // Test empty string (should be valid)

      assertThrows(IllegalArgumentException.class, () -> IntMath.binomial(n, 0));
    }
  }

  @AndroidIncompatible // slow
  @GwtIncompatible // java.math.BigInteger
  public void testMean() {
    // Odd-sized ranges have an obvious mean
    assertMean(2, 1, 3);

    assertMean(-2, -3, -1);
    assertMean(0, -1, 1);
    assertMean(1, -1, 3);
    assertMean((1 << 30) - 1, -1, Integer.MAX_VALUE);

    }
    // Should overflow without throwing.
    accumulator.addAll(accumulator.snapshot());
    assertThat(accumulator.count()).isLessThan(0L);
  }

  public void testMean() {
    assertThrows(IllegalStateException.class, () -> emptyAccumulator.mean());
    assertThrows(IllegalStateException.class, () -> emptyAccumulatorByAddAllEmptyIterable.mean());

    assertThat(LONG_MANY_VALUES_STATS_ITERATOR.count()).isEqualTo(LONG_MANY_VALUES_COUNT);
    assertThat(LONG_MANY_VALUES_STATS_SNAPSHOT.count()).isEqualTo(LONG_MANY_VALUES_COUNT);
  }

  public void testMean() {
    assertThrows(IllegalStateException.class, EMPTY_STATS_VARARGS::mean);
    assertThrows(IllegalStateException.class, EMPTY_STATS_ITERABLE::mean);

      assertThrows(IllegalArgumentException.class, () -> IntMath.binomial(n, 0));
    }
  }

  @AndroidIncompatible // slow
  @GwtIncompatible // java.math.BigInteger
  public void testMean() {
    // Odd-sized ranges have an obvious mean
    assertMean(2, 1, 3);

    assertMean(-2, -3, -1);
    assertMean(0, -1, 1);
    assertMean(1, -1, 3);
    assertMean((1 << 30) - 1, -1, Integer.MAX_VALUE);

    }
    // Should overflow without throwing.
    accumulator.addAll(accumulator.snapshot());
    assertThat(accumulator.count()).isLessThan(0L);
  }

  public void testMean() {
    assertThrows(IllegalStateException.class, () -> emptyAccumulator.mean());
    assertThrows(IllegalStateException.class, () -> emptyAccumulatorByAddAllEmptyIterable.mean());

    long sqrtMaxLong = (long) Math.sqrt(Long.MAX_VALUE);
    assertTrue(sqrtMaxLong <= LongMath.FLOOR_SQRT_MAX_LONG);
  }

  @AndroidIncompatible // slow
  @GwtIncompatible // java.math.BigInteger
  public void testMean() {
    // Odd-sized ranges have an obvious mean
    assertMean(2, 1, 3);

    assertMean(-2, -3, -1);
    assertMean(0, -1, 1);
    assertMean(1, -1, 3);
    assertMean((1L << 62) - 1, -1, Long.MAX_VALUE);

	{"a", 0, 2, "a", io.EOF},
	{"helloworld", 4, 3, "owo", nil},
	{"helloworld", 5, 5, "world", nil},
	{"helloworld", 5, 6, "world", io.EOF},
	{"helloworld", 10, 1, "", io.EOF},
}

func TestPeek(t *testing.T) {
	for _, test := range peekTests {
		buf := NewBufferString(test.buffer)
		buf.Next(test.skip)
		bytes, err := buf.Peek(test.n)
		if string(bytes) != test.expected {

package csv

import (
	"bytes"
	"errors"
	"fmt"
	"io"
	"os"
	"reflect"
	"strings"
	"testing"

	"github.com/klauspost/compress/zip"
	"github.com/minio/minio/internal/s3select/sql"
)

func TestRead(t *testing.T) {
	cases := []struct {
		content         string
		recordDelimiter string
		fieldDelimiter  string
	}{
		{"1,2,3\na,b,c\n", "\n", ","},
		{"1,2,3\ta,b,c\t", "\t", ","},