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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,6 @@ | ||
| export declare function assertShallowDeepAlmostEqual( | ||
| expect?: object | boolean | number | null | string | Date, | ||
| actual?: object | boolean | number | null | string | Date, | ||
| path?: string, | ||
| threshold?: number, | ||
| ): boolean; |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,70 @@ | ||
| "use strict"; | ||
| Object.defineProperty(exports, "__esModule", { value: true }); | ||
| exports.assertShallowDeepAlmostEqual = void 0; | ||
| function assertShallowDeepAlmostEqual(expect, actual, path = "", threshold = 0.01) { | ||
| // null value | ||
| if (expect === null) { | ||
| if (!(actual === null)) { | ||
| throw new Error(`Expected to have null but got "${actual}" at path "${path}".`); | ||
| } | ||
| return true; | ||
| } | ||
| // undefined expected value | ||
| if (typeof expect === "undefined") { | ||
| if (typeof actual !== "undefined") { | ||
| throw new Error(`Expected to have undefined but got "${actual}" at path "${path}".`); | ||
| } | ||
| return true; | ||
| } | ||
| // scalar description | ||
| if (typeof expect === "boolean" || typeof expect === "string") { | ||
| if (expect !== actual) { | ||
| throw new Error(`Expected to have "${expect}" but got "${actual}" at path "${path}".`); | ||
| } | ||
| return true; | ||
| } | ||
| // numbers — here is some important 'almost equal' stuff | ||
| // TODO: configurable threshold | ||
| if (typeof expect === "number") { | ||
| if (typeof actual !== "number") { | ||
| throw new Error(`Expected to have number but got "${actual}" at path "${path}".`); | ||
| } | ||
| if (Math.abs(expect - actual) > threshold) { | ||
| throw new Error( | ||
| `Expected to have "${expect}+-${threshold}" but got "${actual}" at path "${path}".`, | ||
| ); | ||
| } | ||
| return true; | ||
| } | ||
| // dates | ||
| if (expect instanceof Date) { | ||
| if (actual instanceof Date) { | ||
| if (expect.getTime() !== actual.getTime()) { | ||
| throw new Error( | ||
| `Expected to have date "${expect.toISOString()}" but got "${actual.toISOString()}" at path "${path}".`, | ||
| ); | ||
| } | ||
| } else { | ||
| throw new Error( | ||
| `Expected to have date "${expect.toISOString()}" but got "${actual}" at path "${path}".`, | ||
| ); | ||
| } | ||
| return true; | ||
| } | ||
| if (actual === null) { | ||
| throw new Error(`Expected to have an array/object but got null at path "${path}".`); | ||
| } | ||
| // array/object description | ||
| // eslint-disable-next-line no-restricted-syntax, guard-for-in | ||
| for (const prop in expect) { | ||
| // @ts-ignore | ||
| if (typeof actual[prop] === "undefined" && typeof expect[prop] !== "undefined") { | ||
| throw new Error(`Expected "${prop}" field to be defined at path "${path}".`); | ||
| } | ||
| const newPath = path + (path === "/" ? "" : "/") + prop; | ||
| // @ts-ignore | ||
| shallowDeepAlmostEqual(expect[prop], actual[prop], newPath, threshold); | ||
| } | ||
| return true; | ||
| } | ||
| exports.assertShallowDeepAlmostEqual = assertShallowDeepAlmostEqual; |