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New keyword "Compare Query Results"

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Assessment

Difficulty
5/5
Estimated time
Over a week
Newbie friendliness
25/100
Issue type
Feature
Clarity
Needs clarification
Activity status
Stale
Tech stack
python, sql
Domain
database, testing

Research direction

The issue names no files, tests, or entry points. Start by locating the existing query-related keywords and their tests, then clarify row ordering, row-count mismatches, output formatting, and assertion behavior. Done means the comparison keyword, error reporting, and visual difference output have defined behavior for equal and unequal results.

Written by the indexing model from the issue text.

Description

improvement

The keyword should compare results of two SQL queries and show the difference.

The arguments would be like query_1, query_2 and assert_results_equal (True or False).
If False, there is no assertion - just show print the difference in the RF log.

Both queries must deliver the same columns - same numbers and the same names.
It has to be implemented in the queries themselves.

The output should look like a merged table

  • The columns are the same, they're merged (no duplicated cols like Col_A_Query_1 and Col_A_Query_2 - just Col_A).
  • The cells with not equal values should get a red background and contain both values like Value 1 != Value 2.
  • The column name and the row number with a cell with unequal values shall be highlighted as well.
  • And maybe keep them visible during the scrolling (sticky scroll)?
  • All other cells with equal values should be either not highlighted at all or get a green background maybe.

Apart from the visual highlighting, there should be an assertion to provide the keyword status and the error message

  • The error message should not include all details, but maybe a number of rows and column names? Like this: X rows had differences in cols A, B and C?

The very first check though should be the comparison of row number in results

  • If they are unequal, there should be an error message (without details) - and an additional visual output.
  • Visually, it would be maybe nice to print both tables aside and highlight rows, which exist in one of the results only - in green and red, like git merge style?
  • No further assertions are performed in this case.
Dominant language
Python
Stars
179
Forks
178
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