[GROOVY-4520] Groovy power assert is confusing if no types are displayed

• Type: Improvement
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 1.7.5
• Component/s: groovy-runtime
• Assignee: Unassigned
• Reporter: Evgeny Goldin
• Created: 20/Nov/10 10:45
• Updated: 15/Oct/15 08:01

Description

In the following code

def j = "5"
assert 5 == j

Assertion failed: 

assert 5 == j
         |  |
         |  5
         false

it is confusing to understand why assert fails if no types are displayed. Variables compared may be different but their toString() representations used by assert error message may be identical.

Another example I had was:

assert pomSize == project.properties.pomSize
       |       |  |       |          |
       2607    |  |       |          2607
               |  |       [pomSize:2607, gmavenVersion:1.3]
               |  MavenProject: com.goldin:groovymag.listing-1:12.2010 @ E:\Projects\GroovyMag\December-2010\Listing-1\pom.xml
               false

Here I had a number 2607 on the left, but a String "2607" on the right.

I suggest to add types of variables compared in assert.

Issue Links

• relates to: GROOVY-7569 PowerAsserts should print results more verbosely and safer