Bug: 157937926

Clone this repo:
  1. 54a4cc7 Merge tag 'v0.5.7' by Dan Willemsen · 9 weeks ago master
  2. 039e37c Add //go:build lines (#285) by Tobias Klauser · 5 months ago
  3. 3242228 Drop hacks to work around Go reflection bugs in Go1.9 (#282) by Joe Tsai · 6 months ago
  4. f59cd61 Update minimum supported version to go1.11 (#281) by Damien Neil · 6 months ago
  5. 6faefd0 Reduce minimum length for specialize string diffing (#275) by Joe Tsai · 8 months ago

Package for equality of Go values

GoDev Build Status

This package is intended to be a more powerful and safer alternative to reflect.DeepEqual for comparing whether two values are semantically equal.

The primary features of cmp are:

  • When the default behavior of equality does not suit the needs of the test, custom equality functions can override the equality operation. For example, an equality function may report floats as equal so long as they are within some tolerance of each other.

  • Types that have an Equal method may use that method to determine equality. This allows package authors to determine the equality operation for the types that they define.

  • If no custom equality functions are used and no Equal method is defined, equality is determined by recursively comparing the primitive kinds on both values, much like reflect.DeepEqual. Unlike reflect.DeepEqual, unexported fields are not compared by default; they result in panics unless suppressed by using an Ignore option (see cmpopts.IgnoreUnexported) or explicitly compared using the AllowUnexported option.

See the documentation for more information.

This is not an official Google product.


go get -u github.com/google/go-cmp/cmp


BSD - See LICENSE file