DiffVisualizer — behaviour Each section is one scenario from tests/e2e/features/, with the screenshot the test captured at its final assertion. 10 of 10 scenarios have one. Rendering diffs A diff block in the chat is rendered as a visual diff BEH-1, BEH-3 The rendered diff offers maximize and copy BEH-2 Diff overlay, copy, and edge-case handling Maximizing a rendered diff opens a single fullscreen overlay BEH-4 The overlay closes via its close button and the inline diff survives BEH-5 The overlay closes via a backdrop click BEH-5 The overlay closes via the Escape key BEH-5 Copying a rendered diff puts the raw diff text on the clipboard BEH-6 A multi-file diff renders both files inside one visual diff BEH-1 Malformed diff text falls back to the readable plain code block BEH-3 A non-diff code fence is left untouched BEH-1
