TS · testing

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prefer-whole-object-assertion

Collapse consecutive assertions on one object into a whole-object assertion so related mismatches are reported together.

assertArrayOncecombineAssertions Rule source Tests Catalog JSON

Why

One whole-object assertion presents related expectations together and produces a complete structural diff.

Fix

Consider one toMatchObject assertion for ordinary data objects. Preserve missing-property checks, identity, and getter or proxy behavior when deciding whether to combine assertions.

Examples

Before — flagged Consider grouping related data properties

src/user.test.ts

expect(user.id).toBe(1);
expect(user.name).toBe("Ada");

After — preferred Assert the object once

src/user.test.ts

expect(user).toMatchObject({ id: 1, name: "Ada" });

Formerly: strict-test-assertions