Cleanup assert_cases_equal.

[robfalck]

Issue Type

• Bug
• Enhancement
• Docs
• Miscellaneous

Description

The test utility assert_cases_equal currently prints out the difference in each element of an array when a difference is found. Chance this such that it only prints out the max and mean values of the differences.

Example

The current test for difference values in assert_cases_equal outputs differences between 3 variables a, b, and c.
Rather than printing the entirety of these arrays, which can grow large for some real-world problems, only print out the mean and max differences:

The following variables contain different values:
var        max error       mean error
--- ---------------- ----------------
  a  4.000000000e+00  2.000000000e+00
  b  5.000000000e+00  2.500000000e+00
  c  4.000000000e+00  1.333333333e+00

Environment

Dymos 1.5.1-dev