Record<string, unknown> extends type but not interface

[brianconnoly]

Bug Report

🔎 Search Terms

Record with unknown extending type works but interface doesnt

🕗 Version & Regression Information

• This changed between versions 3.3 and 3.5

⏯ Playground Link

Playground link with relevant code

💻 Code

interface Api {
    request: Record<string, unknown> | void;
    response: Record<string, unknown> | void;
}

interface Generic<A extends Api> {
    test: A;
}

interface ITestRequest {
    a?: string;
    b?: number;
}

type TTestRequest = {
    a?: string;
    b?: number;
};

interface TestInterface {
    request: ITestRequest;
    response: void;
}
interface TestType {
    request: TTestRequest;
    response: void;
}

// This doesnt work
type Genered1 = Generic<TestInterface>;

// But this does
type Genered2 = Generic<TestType>;

🙁 Actual behavior

ITestRequest fails to extend Record<string, unknown>

🙂 Expected behavior

ITestRequest works as TTestRequest and can be passed under signature Record<string, unknown>

[MartinJohns]

Duplicate of #42825. Used search terms: interface extends record unknown

[typescript-bot]

This issue has been marked as a 'Duplicate' and has seen no recent activity. It has been automatically closed for house-keeping purposes.