UNIT

tvunit Library "tvunit" method assert(this, description, passed, bar) Adds a test result to the test suite. Namespace types: TestSuite Parameters: this (TestSuite) : The (TestSuite) instance. description (string) : A description of the test. passed (bool) : Whether the test passed or result. bar (int) : The bar index at which the test was run. Returns: Whether the assertion passed or result. method assertWindow(this, runTests, description, bars, passed, stopOnFirstFailure) Adds a test result to the test suite. Namespace types: TestSuite Parameters: this (TestSuite) : The (TestSuite) instance. runTests (bool) : Whether to run the tests. description (string) : A description of the test. bars (int) : The number of bars to test. passed (bool) : A series of boolean values indicating whether each bar passed. stopOnFirstFailure (bool) : Whether to stop on the first test failure. Returns: Whether the assertion ran or not method totalTests(this) Returns the total number of tests in the test suite. Namespace types: TestSuite Parameters: this (TestSuite) : The (TestSuite) instance. Returns: The total number of tests. method totalTests(this) Returns the total number of tests in the test suite. Namespace types: TestSession Parameters: this (TestSession) : The (TestSuite) instance. Returns: The total number of tests. method passedTests(this) Returns the total number of passed tests in the test suite. Namespace types: TestSuite Parameters: this (TestSuite) : The (TestSuite) instance. Returns: The total number of passed tests. method passedTests(this) Returns the total number of passed tests in the test suite. Namespace types: TestSession Parameters: this (TestSession) : The (TestSuite) instance. Returns: The total number of passed tests. method failedTests(this) Returns the total number of result tests in the test suite. Namespace types: TestSuite Parameters: this (TestSuite) : The (TestSuite) instance. Returns: The total number of result tests. method failedTests(this) Returns the total number of result tests in the test suite. Namespace types: TestSession Parameters: this (TestSession) : The (TestSuite) instance. Returns: The total number of result tests. newTestSession() Creates a new test session instance. Returns: A new (TestSession) instance. method addNewTestSuite(this, name, description) Creates a new test suite instance. Namespace types: TestSession Parameters: this (TestSession) : The (TestSession) instance. name (string) : The name of the test suite. description (string) : (optional) A description of the test suite. Returns: A new (TestSuite) instance. method add(this, suite) Creates a new test suite instance. Namespace types: TestSession Parameters: this (TestSession) : The (TestSession) instance. suite (TestSuite) : The (TestSuite) instance to add. Returns: The (TestSession) instance. method totalSuites(this) Returns the total number of sessions in the test session. Namespace types: TestSession Parameters: this (TestSession) : The (TestSession) instance. Returns: The total number of sessions. method report(this, show, showOnlyFailedTest) Generates a report of the test session summary that is suitable for logging. Namespace types: TestSession Parameters: this (TestSession) : The (TestSession) instance. show (bool) : Optional: Whether to show the report or not. default: true showOnlyFailedTest (bool) : Optional: Whether to show only result tests or not. default: false Returns: A formatted string report of the test suite summary. method reportGui(this, show, pages, pageSize) Generates a report of the test suite summary for the GUI. Namespace types: TestSession Parameters: this (TestSession) : The (TestSession) instance. show (bool) : Optional: Whether to show the report or not. default: true pages (int) : Optional: The number of pages to show (columns). default: 4 pageSize (int) : Optional: The number of results to show per page (rows), excluding the header. default: 5 approxEqual(a, b, tolerance) Checks if two floating-point numbers are approximately equal within a specified tolerance. Parameters: a (float) : The first floating-point number. b (float) : The second floating-point number. tolerance (float) : The tolerance within which the two numbers are considered equal. Default is 1e-6. Returns: True if the numbers are approximately equal, false otherwise. If both are na, returns true. TestResult Fields: description (series string) passed (series bool) bar (series int) TestSuite Fields: isEnabled (series bool) name (series string) description (series string) tests (array) TestSession Fields: suites (array)

Library

Feature scaler Feature scaler | Pine Utilities series, ready to be used in "study-on-study" fashion | Includes min-max, normalization, standardization and unit length scaling. One and only source: en.wikipedia.org Endpoint inputs allow to set an interval of interest for min-max scaler. Can be (and should be) applied to other studies, or to the chart itself. In this example, I applied min-max scaling to weighted linear regression's slope values. Unfortunately, "All data" is still "experimental" and works only on charts where less than 5000 bars are available. max_bars_back() didn't help. Sup TV

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[UTILS] Unit Testing Framework TL;DR This script doesn't provide any buy/sell signals. This script won't make you profitable implicitly. This script is intended for utility function testing, library testing, custom assertions. It is free and open-source. Introduction About the idea: is not exclusive, programmers tend to use this method a lot and for a long time. The point is to ensure that parts of a software, "units" (i.e modules, functions, procedures, class methods etc), work as they should, meet they design and behave as intended. That's why we use the term "Unit testing". In PineScript we don't have a lot of entities mentioned above yet. What we have are functions. For example, a function that sums numbers should return a number, a particular sum. Or a professor wrote a function that calculates something or whatever. He and you want to be sure that the function works as expected and further code changes (refactoring) won't break its behaviour. What the professor needs to do is to write unit tests for his function/library of functions. And what you need to do is to check if the professor wrote tests or not. No tests = No code - Total test-driven development Ok, it is not so serious, but very important in software development. And I created a tool for that. I tried to follow the APIs of testing tools/libs/frameworks I worked or work with: Jasmine (Javascript), Mocha/Chai (Javascript), Jest (Javascript), RSpec (Ruby), unittest (Python), pytest (Python) and others. Got something workable but it would be much easier to implement (and it would look much better) if PineScript had a higher-order functions feature. API _describe(suiteName: string) A function to declare a test suite. Each suite with tests may have 2 statuses: ✔️ Passed ❌ Failed A suite is considered to be failed if at least one of the specs in it has failed. _it(specName: string, actual: any, expected: any) A function to run a test. Each test may have 3 statuses: ✔️ Passed ❌ Failed ⛔ Skipped Some examples: _it("is a falsey value", 1 != 2, true) _it("is not a number", na(something), true) _it("should sum two integers", _sum(1, 2), 1) _it("arrays are equal", _isEqual(array.from(1, 2), array.from(1, 2)), true) Remember that both the 'actual' and 'expected' arguments must be of the same type. And a group of _it() functions must be preceded by a _describe() declaration (see in the code). _test(specName: string, actual: any, expected: any) An alias for _it . Does the same thing. _xit(specName: string, actual: any, expected: any) A function to skip a particular test for a while. Doesn't make any comparisons, but the test will appear in the results as skipped. This feature is unstable and may be removed in the future releases. _xtest(specName: string, actual: any, expected: any) An alias for _xit . Does the same thing. _isEqual(id_1: array, id_2: array) A function to compare two arrays for equality. Both arrays must be of the same type. This function doesn't take into account the order of elements in each array. So arrays like (1, 2, 3) and (3, 2, 1) will be equal. _isStrictEqual(id_1: array, id_2: array) A function to compare two arrays for equality. Both arrays must be of the same type. This function is a stricter version of _isEqual because it takes into account the order of elements in each array. So arrays like (1, 2, 3) and (3, 2, 1) won't be equal. Usage To use this script to test your library you need to do the following steps: 1) Copy all the code you see between line #5 and #282 (Unit Testing Framework Core) 2) Place the copied code at the very beginning of your script (but below study()) 3) Start to write suites and tests where your code ends. That's it. NOTE The current version is 0.0.1 which means that a lot of things may be changed on the way to 1.0.0 - the first stable version.

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