Visual Comparison

When a reflow test is run, a baseline run is used for comparison. This can either be passed directly into the run, to compare against a specific run, or else reflow will select the most recent successful run of that same test and test version as the baseline.

When each step is run, the baseline is used to provide a visual comparison of what changed between the baseline execution of that step and the current execution of that step.

These comparisons are used to guide reflow, but a test will not fail if there are significant visual differences. To make a test fail upon a visual difference, use a visual assertion.