♻️ :: Update existing reference image on failure

2026-06-16 12:24:31 +00:00 · 2022-11-04 20:32:07 +01:00
parent 23f0a03bf1
commit 026fa650ba
1 changed files with 5 additions and 0 deletions
@@ -112,6 +112,11 @@ extension XCTestCase {
            // The above method `calculateDifference()` returns "0" for no difference and "1" for a complete difference.
            // The parameter `precision` defines "1" as totally equal images, therefore we subtract the differences from "1" here.
            let invertedDifference = 1 - difference
+            if invertedDifference < precision {
+                // Test failed, update existing reference image.
+                try snapshotFileManager.saveReferenceImage(image)
+            }
+
            XCTAssertGreaterThanOrEqual(invertedDifference, precision, file: file, line: line)
        } catch let error as SnapshotFileManager.LoadError {
            switch error {