src/main/java/org/fest/assertions/DoubleArrayAssert.java
public @NotNull DoubleArrayAssert isEqualTo(@Nullable double[] expected, @NotNull Delta delta) {
    checkNotNull(delta);
    if (actual == expected) {
      return this;
    }
    if (actual == null || expected == null) {
      throw failureWhenNotEqual(expected, delta);
    }
    int length = expected.length;
    if (actual.length != length) {
      failureWhenNotEqual(expected, delta);
    }
    for (int i = 0; i < length; i++) {
      if (!equals(expected[i], actual[i], delta)) {
        failureWhenNotEqual(expected, delta);
      }
    }
    return this;
  }
public @NotNull DoubleArrayAssert isEqualTo(@Nullable double[] expected, @NotNull Delta delta) {
    checkNotNull(delta);
    if (actual == expected) {
      return this;
    }
    if (actual == null || expected == null) {
      throw failureWhenNotEqual(expected, delta);
    }
    int length = expected.length;
    if (actual.length != length) {
      failureWhenNotEqual(expected, delta);
    }
    for (int i = 0; i < length; i++) {
      if (!equals(expected[i], actual[i], delta)) {
        failureWhenNotEqual(expected, delta);
      }
    }
    return this;
  }
Verifies that the actual {@code double} array is equal to the given array, within a positive delta.

@param expected the given array to compare the actual array to.
@param delta    the given delta.
@return this assertion object.
@throws NullPointerException if {@code delta} is {@code null}.
@throws AssertionError       if the actual {@code double} array is not equal to the given one.
@since 1.1