feat: add the structure-based implementation of the .toBe() matcher#636
Merged
mrazauskas merged 11 commits intomainfrom Dec 17, 2025
Merged
feat: add the structure-based implementation of the .toBe() matcher#636mrazauskas merged 11 commits intomainfrom
.toBe() matcher#636mrazauskas merged 11 commits intomainfrom
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.toBe() matcher.toBe() matcher
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Adding structure-based implementation of the
.toBe()matcher.Current implementation is patch-based. It is not perfect and also it will not work in TypeScript 7. Which means: this work removes the last blocker to support TypeScript 7 (reference #443). This is exciting!
The new structure-based implementation brings in several improvements. For instance, it considers the following types as identical:
{ a: string } & { b: number },{ b: number } & { a: string }and{ a: string; b: number }((a: string) => string) & ((b: number) => number)and{ (a: string): string; (b: number): number }The above works with any complexity and at any depth. This is even more exciting!
The new implementation will be enabled by default. There is a lot of code, obviously. Overall, it does a great job, but there might be some defects, of course. To use the old patch-based implementation of the '.toBe()' matcher, set the
"legacyToBe": trueoption.