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testframework.templates.js
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testframework.templates.js
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/**
* Test Framework to reuse the test functions provided by the API.
*/
class Test {
/**
* Throws an error with the given message and the given values.
*
* @static
* @param {any} resultValue - The result value from execution.
* @param {any} expectedValue - The expected value after the execution.
* @param {string} errorMessage - (optional) The error message.
* @throws {Error} - The error thrown.
* @returns {void} returns nothing.
*/
static throwAssertError(resultValue, expectedValue, errorMessage) {
errorMessage && console.error(errorMessage);
console.error(
`TEST FAILED: ${expectedValue} was expected but ${resultValue} was given.`
);
process.exit(1);
}
/**
* Assert with strict equality.
*
* @static
* @param {any} resultValue - The result value from execution.
* @param {any} expectedValue - The expected value after the execution.
* @param {string} errorMessage - (optional) The error message.
* @returns {void} returns nothing.
*/
static assertEquals(resultValue, expectedValue, errorMessage) {
resultValue === expectedValue
? console.log("Passed")
: Test.throwAssertError(resultValue, expectedValue, errorMessage);
}
/**
* Assert with no strict equality, and check the results if it's an array.
*
* @static
* @param {any} resultValue - The result value from execution.
* @param {any} expectedValue - The expected value after the execution.
* @returns {void} returns nothing.
*/
static assertSimilar(resultValue, expectedValue) {
if (Array.isArray(resultValue)) {
resultValue.length == expectedValue.length &&
resultValue.every((value, index) => value == expectedValue[index])
? console.log("Passed")
: Test.throwAssertError(resultValue, expectedValue);
} else {
resultValue == expectedValue
? console.log("Passed")
: Test.throwAssertError(resultValue, expectedValue);
}
}
/**
* Assert if truthy result.
*
* @static
* @param {any} resultValue - The result value from execution.
* @param {string} errorMessage - (optional) The error message.
* @returns {void} returns nothing.
*/
static expect(resultValue, errorMessage) {
resultValue
? console.log("Passed")
: Test.throwAssertError(resultValue, true, errorMessage);
}
/**
* Assert if deep equal based on JSON.stringify.
*
* @static
* @param {any} resultValue - The result value from execution.
* @param {any} expectedValue - The expected value after the execution.
* @param {string} errorMessage - (optional) The error message.
* @returns {void} returns nothing.
*/
static assertDeepEquals(resultValue, expectedValue, errorMessage) {
JSON.stringify(resultValue) === JSON.stringify(expectedValue)
? console.log("Passed")
: Test.throwAssertError(resultValue, expectedValue, errorMessage);
}
}