smartexpect/ts/smartexpect.classes.assertion.ts
2023-08-11 18:08:50 +02:00

486 lines
14 KiB
TypeScript

import * as plugins from './smartexpect.plugins.js';
export type TExecutionType = 'sync' | 'async';
export class Assertion {
executionMode: TExecutionType;
baseReference: any;
propertyDrillDown: string[] = [];
private notSetting = false;
private timeoutSetting = 0;
constructor(baseReferenceArg: any, executionModeArg: TExecutionType) {
this.baseReference = baseReferenceArg;
this.executionMode = executionModeArg;
}
private getObjectToTestReference() {
let returnObjectToTestReference = this.baseReference;
for (const property of this.propertyDrillDown) {
returnObjectToTestReference = returnObjectToTestReference[property];
}
return returnObjectToTestReference;
}
public get not() {
this.notSetting = true;
return this;
}
public timeout(millisArg: number) {
this.timeoutSetting = millisArg;
return this;
}
private runCheck(checkFunction: () => any) {
const runDirectOrNegated = (checkFunction: () => any) => {
if (!this.notSetting) {
return checkFunction();
} else {
let isOk = false;
try {
runDirectOrNegated(checkFunction());
} catch (e) {
isOk = true;
}
if (!isOk) {
throw new Error('Negated assertion is not ok!');
}
}
};
if (this.executionMode === 'async') {
const done = plugins.smartpromise.defer();
if (!(this.baseReference instanceof Promise)) {
done.reject(new Error(`${this.baseReference} is not of type promise.`));
} else {
if (this.timeoutSetting) {
plugins.smartdelay.delayFor(this.timeoutSetting).then(() => {
if (done.status === 'pending') {
done.reject(new Error(`${this.baseReference} timed out at ${this.timeoutSetting}!`));
}
});
}
this.baseReference.then((promiseResultArg) => {
this.baseReference = promiseResultArg;
done.resolve(runDirectOrNegated(checkFunction));
});
}
return done.promise;
} else {
return runDirectOrNegated(checkFunction);
}
}
public toBeTypeofString() {
return this.runCheck(() => {
if (typeof this.getObjectToTestReference() !== 'string') {
throw new Error(
`Assertion failed: ${this.baseReference} with drill down ${
this.propertyDrillDown
} is not of type string, but typeof ${typeof this.baseReference}`
);
}
});
}
public toBeTypeofNumber() {
return this.runCheck(() => {
if (typeof this.getObjectToTestReference() !== 'number') {
throw new Error(
`Assertion failed: ${this.baseReference} with drill down ${
this.propertyDrillDown
} is not of type string, but typeof ${typeof this.baseReference}`
);
}
});
}
public toBeTypeofBoolean() {
return this.runCheck(() => {
if (typeof this.getObjectToTestReference() !== 'boolean') {
throw new Error(
`Assertion failed: ${this.baseReference} with drill down ${
this.propertyDrillDown
} is not of type string, but typeof ${typeof this.baseReference}`
);
}
});
}
public toEqual(comparisonObject: any) {
return this.runCheck(() => {
const result = plugins.fastDeepEqual(this.getObjectToTestReference(), comparisonObject);
if (!result) {
throw new Error(
`${this.baseReference} with drill down ${this.propertyDrillDown} does not equal ${comparisonObject}`
);
}
});
}
public toMatch(comparisonObject: RegExp) {
return this.runCheck(() => {
const result = comparisonObject.test(this.getObjectToTestReference());
if (!result) {
throw new Error(
`${this.baseReference} with drill down ${this.propertyDrillDown} does not equal ${comparisonObject}`
);
}
});
}
public toBeTrue() {
return this.runCheck(() => {
const result =
typeof this.getObjectToTestReference() === 'boolean' &&
this.getObjectToTestReference() === true;
if (!result) {
throw new Error(
`${this.baseReference} with drill down ${this.propertyDrillDown} is not true or not of type boolean`
);
}
});
}
public toBeFalse() {
return this.runCheck(() => {
const result =
typeof this.getObjectToTestReference() === 'boolean' &&
this.getObjectToTestReference() === false;
if (!result) {
throw new Error(
`${this.baseReference} with drill down ${this.propertyDrillDown} is not false or not of type boolean`
);
}
});
}
public toBeInstanceOf(classArg: any) {
return this.runCheck(() => {
const result = this.getObjectToTestReference() instanceof classArg;
if (!result) {
throw new Error(
`${this.baseReference} with drill down ${this.propertyDrillDown} is not an instance of ${classArg}`
);
}
});
}
public toHaveProperty(propertyArg: string, equalsArg?: any) {
return this.runCheck(() => {
const result = !!this.getObjectToTestReference()[propertyArg];
if (!result) {
throw new Error(
`${this.baseReference} with drill down ${this.propertyDrillDown} does not have property ${propertyArg}`
);
}
if (equalsArg) {
if (result !== equalsArg) {
throw new Error(
`${this.baseReference} with drill down ${this.propertyDrillDown} does have property ${propertyArg}, but it does not equal ${equalsArg}`
);
}
}
});
}
public toBeGreaterThan(numberArg: number) {
return this.runCheck(() => {
const result = this.getObjectToTestReference() > numberArg;
if (!result) {
throw new Error(
`${this.baseReference} with drill down ${this.propertyDrillDown} is not greater than ${numberArg}`
);
}
});
}
public toBeLessThan(numberArg: number) {
return this.runCheck(() => {
const result = this.getObjectToTestReference() < numberArg;
if (!result) {
throw new Error(
`${this.baseReference} with drill down ${this.propertyDrillDown} is not less than ${numberArg}`
);
}
});
}
public toBeNull() {
return this.runCheck(() => {
const result = this.getObjectToTestReference() === null;
if (!result) {
throw new Error(
`${this.baseReference} with drill down ${this.propertyDrillDown} is not null`
);
}
});
}
public toBeUndefined() {
return this.runCheck(() => {
const result = this.getObjectToTestReference() === undefined;
if (!result) {
throw new Error(
`${this.baseReference} with drill down ${this.propertyDrillDown} is not undefined`
);
}
});
}
public toBeNullOrUndefined() {
return this.runCheck(() => {
const result =
this.getObjectToTestReference() === null || this.getObjectToTestReference() === undefined;
if (!result) {
throw new Error(
`${this.baseReference} with drill down ${this.propertyDrillDown} is not null or undefined`
);
}
});
}
public toContain(itemArg: any) {
return this.runCheck(() => {
const result =
this.getObjectToTestReference() instanceof Array &&
this.getObjectToTestReference().includes(itemArg);
if (!result) {
throw new Error(
`${this.baseReference} with drill down ${this.propertyDrillDown} is not contain ${itemArg}`
);
}
});
}
public toStartWith(itemArg: any) {
return this.runCheck(() => {
const testObject = this.getObjectToTestReference();
const result = typeof testObject === 'string' && testObject.startsWith(itemArg);
if (!result) {
throw new Error(
`${this.baseReference} with drill down ${this.propertyDrillDown} is not contain ${itemArg}`
);
}
});
}
public toEndWith(itemArg: any) {
return this.runCheck(() => {
const testObject = this.getObjectToTestReference();
const result = typeof testObject === 'string' && testObject.endsWith(itemArg);
if (!result) {
throw new Error(
`${this.baseReference} with drill down ${this.propertyDrillDown} is not contain ${itemArg}`
);
}
});
}
// ... previous code ...
public toBeOneOf(values: any[]) {
return this.runCheck(() => {
const result = values.includes(this.getObjectToTestReference());
if (!result) {
throw new Error(
`${this.baseReference} with drill down ${this.propertyDrillDown} is not one of ${values}`
);
}
});
}
public toHaveLength(length: number) {
return this.runCheck(() => {
const obj = this.getObjectToTestReference();
if (typeof obj.length !== 'number' || obj.length !== length) {
throw new Error(
`${this.baseReference} with drill down ${this.propertyDrillDown} does not have a length of ${length}`
);
}
});
}
public toBeCloseTo(value: number, precision = 2) {
return this.runCheck(() => {
const difference = Math.abs(this.getObjectToTestReference() - value);
if (difference > Math.pow(10, -precision) / 2) {
throw new Error(
`${this.baseReference} with drill down ${this.propertyDrillDown} is not close to ${value} up to ${precision} decimal places`
);
}
});
}
public toThrow(expectedError?: any) {
return this.runCheck(() => {
let thrown = false;
try {
this.getObjectToTestReference()();
} catch (e) {
thrown = true;
if (expectedError && !(e instanceof expectedError)) {
throw new Error(
`Expected function to throw ${expectedError.name}, but it threw ${e.name}`
);
}
}
if (!thrown) {
throw new Error(`Expected function to throw, but it didn't.`);
}
});
}
public toBeTruthy() {
return this.runCheck(() => {
if (!this.getObjectToTestReference()) {
throw new Error(
`${this.baseReference} with drill down ${this.propertyDrillDown} is not truthy`
);
}
});
}
public toBeFalsy() {
return this.runCheck(() => {
if (this.getObjectToTestReference()) {
throw new Error(
`${this.baseReference} with drill down ${this.propertyDrillDown} is not falsy`
);
}
});
}
public toBeGreaterThanOrEqual(numberArg: number) {
return this.runCheck(() => {
if (this.getObjectToTestReference() <= numberArg) {
throw new Error(
`${this.baseReference} with drill down ${this.propertyDrillDown} is not greater than or equal to ${numberArg}`
);
}
});
}
public toBeLessThanOrEqual(numberArg: number) {
return this.runCheck(() => {
if (this.getObjectToTestReference() >= numberArg) {
throw new Error(
`${this.baseReference} with drill down ${this.propertyDrillDown} is not less than or equal to ${numberArg}`
);
}
});
}
public toMatchObject(objectArg: object) {
return this.runCheck(() => {
function deepEqual(obj1: any, obj2: any): boolean {
// If both are of primitive types and are equal
if (obj1 === obj2) {
return true;
}
// If either of them is null or not an object
if (typeof obj1 !== 'object' || obj1 === null || typeof obj2 !== 'object' || obj2 === null) {
return false;
}
const keys1 = Object.keys(obj1);
const keys2 = Object.keys(obj2);
// If their properties' count doesn't match
if (keys1.length !== keys2.length) {
return false;
}
// Checking if every property in obj1 has a counterpart in obj2
for (const key of keys1) {
if (!keys2.includes(key)) {
return false;
}
if (!deepEqual(obj1[key], obj2[key])) {
return false;
}
}
return true;
}
const partialMatch = deepEqual(
this.getObjectToTestReference(),
objectArg
); // Note: Implement a deep comparison function or use one from a library
if (!partialMatch) {
throw new Error(
`${this.baseReference} with drill down ${this.propertyDrillDown} does not match the object ${objectArg}`
);
}
});
}
public toContainEqual(value: any) {
return this.runCheck(() => {
const arr = this.getObjectToTestReference();
const found = arr.some((item: any) => plugins.fastDeepEqual(item, value)); // Assuming fastDeepEqual checks deep equality
if (!found) {
throw new Error(
`${this.baseReference} with drill down ${this.propertyDrillDown} does not contain the value ${value}`
);
}
});
}
public toBeArray() {
return this.runCheck(() => {
if (!Array.isArray(this.getObjectToTestReference())) {
throw new Error(
`${this.baseReference} with drill down ${this.propertyDrillDown} is not an array`
);
}
});
}
public toInclude(substring: string) {
return this.runCheck(() => {
if (!this.getObjectToTestReference().includes(substring)) {
throw new Error(
`${this.baseReference} with drill down ${this.propertyDrillDown} does not include the substring ${substring}`
);
}
});
}
public toBeDate() {
return this.runCheck(() => {
if (!(this.getObjectToTestReference() instanceof Date)) {
throw new Error(
`${this.baseReference} with drill down ${this.propertyDrillDown} is not a date`
);
}
});
}
public toBeBeforeDate(date: Date) {
return this.runCheck(() => {
if (!(this.getObjectToTestReference() < date)) {
throw new Error(
`${this.baseReference} with drill down ${this.propertyDrillDown} is not before ${date}`
);
}
});
}
public toBeAfterDate(date: Date) {
return this.runCheck(() => {
if (!(this.getObjectToTestReference() > date)) {
throw new Error(
`${this.baseReference} with drill down ${this.propertyDrillDown} is not after ${date}`
);
}
});
}
public property(propertyNameArg: string) {
this.propertyDrillDown.push(propertyNameArg);
return this;
}
}