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tstyche

tstyche34.9kMIT5.0.1

Everything You Need for Type Testing.

typescript, types, test, runner

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TSTyche

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Everything You Need for Type Testing.

TSTyche is a type testing tool for TypeScript. It ships with describe() and test() helpers, expect style assertions and a mighty test runner.

Helpers

If you are used to test JavaScript, a simple type test file should look familiar:

import { expect, test } from "tstyche";

function isSameLength<T extends { length: number }>(a: T, b: T) {
  return a.length === b.length;
}

test("isSameLength", () => {
  expect(isSameLength([1, 2], [1, 2, 3])).type.toBe<boolean>();
  expect(isSameLength("one", "two")).type.toBe<boolean>();

  expect(isSameLength).type.not.toBeCallableWith(1, 2);
});

To organize, debug and plan tests TSTyche has:

  • test(), it() and describe() helpers,
  • with .only, .skip and .todo run mode flags.

Assertions

The assertions can be used to write type tests (like in the above example) or mixed in your unit tests:

import assert from "node:assert";
import test from "node:test";
import * as tstyche from "tstyche";

function toMilliseconds(value: number) {
  if (typeof value === "number" && !Number.isNaN(value)) {
    return value * 1000;
  }

  throw new Error("Not a number");
}

test("toMilliseconds", () => {
  const sample = toMilliseconds(10);

  assert.equal(sample, 10_000);
  tstyche.expect(sample).type.toBe<number>();

  // Will pass as a type test and not throw at runtime
  tstyche.expect(toMilliseconds).type.not.toBeCallableWith("20");
});

Here is the list of all matchers:

  • .toBe(), .toBeAssignableFrom(), .toBeAssignableTo() compare types or types of expression,
  • .toAcceptProps() checks the type of JSX component props,
  • .toBeApplicable ensures that the decorator function can be applied,
  • .toBeCallableWith() checks whether a function is callable with the given arguments,
  • .toBeConstructableWith() checks whether a class is constructable with the given arguments,
  • .toHaveProperty() looks up keys on an object type.

Runner

The tstyche command is the heart of TSTyche. For example, it can select test files by path, filter tests by name and to run the tests against specific versions of TypeScript:

tstyche query-params --only multiple --target '>=5.6'

This simple! (And it has watch mode too.)

Documentation

Visit tstyche.org to view the full documentation.

License

MIT © TSTyche

changelog

Changelog

5.0.1 - 2025-11-11

Fixed

  • Enable allowJs and checkJs in default compiler options (#616)

5.0.0 - 2025-10-27

If you are upgrading from previous version, please be sure to read the release notes page.

Added

  • New! Allow testing of provided types with .toBeConstructableWith() (#603)
  • Print test runner version and root path (#598)
  • New! Allow testing of provided types with .toBeCallableWith() (#593)
  • Add TestTreeNodeBrand.It member (#591)
  • New! Report counts of checked suppressed errors (#584)
  • New! Add the // @tstyche fixme directive (#574)
  • New! Allow suppressed error messages to be truncated with ... (#573)
  • New! Add the checkDeclarationFiles configuration option (#569)

Fixed

  • Add validation for assertion and action chains (#590)
  • Handle leading tabs when collecting directives (#558)
  • Map the ability diagnostics more precise (#525)

Changed

  • Breaking! Drop support for TypeScript 4.x (#605)
  • Implement the .toHaveProperty() matcher using the ability layer (#597)
  • Breaking! Rename the .toBeAssignableWith() matcher to .toBeAssignableFrom() (#588)
  • Breaking! Export ResultCounts and ResultTiming as types only (#583)
  • Breaking! Remove getters from ResultCounts and ResultTiming (#582)
  • Breaking! Remove the *Result.diagnostics property (#581)
  • Breaking! Do not export internals (#578)
  • Breaking! Remove allowJs and checkJs from default compiler options (#571)
  • Breaking! Remove the checkSourceFiles configuration option (#570)
  • Breaking! Rename OptionBrand.True (#565)
  • Breaking! Change the target option to accept only a semver string value (#562)
  • Breaking! Change the default target value to "*" (#561)
  • Breaking! Remove the .fail run mode flag (#560)
  • Breaking! Rename the ExpectNode (#559)
  • Breaking! Rename the FileLocation class (#554)
  • Breaking! Drop support for few older Node.js 20 versions (#552)
  • Breaking! Enable the checkSuppressedErrors option by default (#551)
  • Breaking! Pass testTree to SuppressedService#match() (#550)
  • Read tarball content from the stream (#546)

5.0.0-rc.0 - 2025-10-26

Release candidate based on 5.0.0-beta.4.

5.0.0-beta.4 - 2025-10-25

If you are upgrading from previous version, please be sure to read the release notes page.

Changed

  • Breaking! Drop support for TypeScript 4.x (#605)

5.0.0-beta.3 - 2025-10-06

If you are upgrading from previous version, please be sure to read the release notes page.

Added

  • New! Allow testing of provided types with .toBeConstructableWith() (#603)
  • Print test runner version and root path (#598)

Changed

  • Implement the .toHaveProperty() matcher using the ability layer (#597)

5.0.0-beta.2 - 2025-09-23

If you are upgrading from previous version, please be sure to read the release notes page.

Added

  • New! Allow testing of provided types with .toBeCallableWith() (#593)
  • Add TestTreeNodeBrand.It member (#591)

Fixed

  • Add validation for assertion and action chains (#590)

5.0.0-beta.1 - 2025-09-12

If you are upgrading from previous version, please be sure to read the release notes page.

Added

  • New! Report counts of checked suppressed errors (#584)

Fixed

  • Provide correct declaration file for TypeScript 4.x (#586)

Changed

  • Add the Layers class (#589)
  • Breaking! Rename the .toBeAssignableWith() matcher to .toBeAssignableFrom() (#588)
  • Breaking! Export ResultCounts and ResultTiming as types only (#583)
  • Breaking! Remove getters from ResultCounts and ResultTiming (#582)
  • Breaking! Remove the *Result.diagnostics property (#581)
  • Breaking! Do not export internals (#578)

5.0.0-beta.0 - 2025-08-29

If you are upgrading from previous version, please be sure to read the release notes page.

Added

  • New! Add the // @tstyche fixme directive (#574)
  • New! Allow suppressed error messages to be truncated with ... (#573)
  • New! Add the checkDeclarationFiles configuration option (#569)

Fixed

  • Handle leading tabs when collecting directives (#558)
  • Map the ability diagnostics more precise (#525)

Changed

  • Breaking! Remove allowJs and checkJs from default compiler options (#571)
  • Breaking! Remove the checkSourceFiles configuration option (#570)
  • Breaking! Rename OptionBrand.True (#565)
  • Breaking! Change the target option to accept only a semver string value (#562)
  • Breaking! Change the default target value to "*" (#561)
  • Breaking! Remove the .fail run mode flag (#560)
  • Breaking! Rename the ExpectNode (#559)
  • Breaking! Rename the FileLocation class (#554)
  • Breaking! Drop support for few older Node.js 20 versions (#552)
  • Breaking! Enable the checkSuppressedErrors option by default (#551)
  • Breaking! Pass testTree to SuppressedService#match() (#550)
  • Read tarball content from the stream (#546)

4.3.0 - 2025-07-16

Added

  • New! Add the fixtureFileMatch configuration option (#534)

4.2.0 - 2025-07-15

Added

  • New! Add support for glob brace expansion (#523, #524)

4.1.0 - 2025-06-26

Added

  • New! Check errors hidden by // @ts-expect-error (#511, #516)
  • Enable noUncheckedSideEffectImports in default compiler options (#514)

4.0.2 - 2025-06-17

Fixed

  • Always erase the // @ts-expect-error directives in the ability layer (#513)

4.0.1 - 2025-06-14

Fixed

  • Do not report unmatched conditional tests or assertions (#500)

4.0.0 - 2025-06-02

If you are upgrading from previous version, please be sure to read the release notes page.

Added

  • New! Add the // @tstyche if directive, which makes it possible to skip tests or assertions conditionally (#490, #493)
  • New! Add template test file support (#468, #469, #470)
  • New! Add the when() utility and the .isCalledWith() action (#460, #466, #480)
  • New! Add the .toBeConstructableWith() matcher (#451, #456, #457, #479, #483)
  • New! Add the .toBeCallableWith() matcher (#447, #448, #449, #453, #456, #457, #479, #483)
  • New! Add the .toBeApplicable matcher (#100)
  • Add collect:* events (#411)

Fixed

  • Handle unexpected trailing tokens in JSON (#496)
  • Allow skipping target type errors (#495)
  • Allow adding notes to the directive comments (#492)
  • Do not typecheck already seen test files (#475)
  • Always use default compiler options when file is not included (#473)
  • Do not reverse diagnostics of the ability layer (#446)

Changed

  • Breaking! Move test tree validation logic to the Collect class (#471)
  • Breaking! Remove config details from summary and Result (#459)
  • Breaking! Always take compiler as the first constructor argument (#445)
  • Breaking! Remove primitive type matchers (#442)
  • Breaking! Exclude whitespace when comparing diagnostic messages (#427)
  • Breaking! Add the minorVersions property to store manifest (#425)
  • Breaking! Make default compiler options strict (#424)
  • Breaking! Drop support for TypeScript <=4.6 (#423, #476)
  • Breaking! Enable the rejectAnyType and rejectNeverType options by default (#422)
  • Breaking! Enable the checkSourceFiles option by default (#421)
  • Breaking! Require passing resolvedConfig to ExpectService constructor (#420)
  • Breaking! Rename AssertionNode and TestTreeNode classes (#419)
  • Breaking! Drop support for Node.js 18 (#418)
  • Breaking! Rename the --fetch command line option (#417)
  • Breaking! Remove the .toMatch() matcher (#416)
  • Breaking! Remove Store.getSupportedTags() method (#415)
  • Breaking! Remove Version.isVersionTag() method (#414)

4.0.0-rc.1 - 2025-05-25

Added

If you are upgrading from previous version, please be sure to read the release notes page.

Added

  • New! Add the // @tstyche if directive, which makes it possible to skip tests or assertions conditionally (#490, #493)

Fixed

  • Allow adding notes to the directive comments (#492)

4.0.0-rc.0 - 2025-05-15

Release candidate based on 4.0.0-beta.10.

4.0.0-beta.10 - 2025-05-14

If you are upgrading from previous version, please be sure to read the release notes page.

Fixed

  • Prepend semicolon only before expression statements in the ability layer (#483)

4.0.0-beta.9 - 2025-05-08

If you are upgrading from previous version, please be sure to read the release notes page.

Added

  • Bring back support for TypeScript >=4.7 (#476)
  • Add validation for when() target (#480)

Fixed

  • Handle trailing commas in the ability layer text (#479)

Changed

  • Breaking! Move test tree validation logic to the Collect class (#471)

4.0.0-beta.8 - 2025-05-05

If you are upgrading from previous version, please be sure to read the release notes page.

Added

  • Add validation for template test files (#470)

Fixed

  • Do not typecheck already seen test files (#475)
  • Always use default compiler options when file is not included (#473)
  • Normalize template test file specifier (#469)

4.0.0-beta.7 - 2025-05-04

If you are upgrading from previous version, please be sure to read the release notes page.

Added

  • New! Add template test file support (#468)
  • New! Add the when() utility and the .isCalledWith() action (#460, #466)

Changed

  • Breaking! Remove config details from summary and Result (#459)

4.0.0-beta.6 - 2025-04-15

If you are upgrading from previous version, please be sure to read the release notes page.

Fixed

  • Allow passing property access expressions to the .toBeCallableWith() and .toBeConstructableWith() matchers (#457)

4.0.0-beta.5 - 2025-04-15

If you are upgrading from previous version, please be sure to read the release notes page.

Fixed

  • Insert missing semicolons in the ability layer text (#456)

4.0.0-beta.4 - 2025-04-14

If you are upgrading from previous version, please be sure to read the release notes page.

Added

  • New! Add the .toBeConstructableWith() matcher (#451)

Fixed

  • Improve validation of the source node passed to .toBeCallableWith() (#449, #453)

4.0.0-beta.3 - 2025-04-11

If you are upgrading from previous version, please be sure to read the release notes page.

Fixed

  • Relax validation of the target of .toBeCallableWith() matcher (#448)

4.0.0-beta.2 - 2025-04-11

If you are upgrading from previous version, please be sure to read the release notes page.

Added

  • New! Add the .toBeCallableWith() matcher (#447)

Fixed

  • Do not reverse diagnostics of the ability layer (#446)

Changed

  • Always take compiler as the first constructor argument (#445)

4.0.0-beta.1 - 2025-04-06

If you are upgrading from previous version, please be sure to read the release notes page.

Added

  • New! Add the .toBeApplicable matcher (#100)

4.0.0-beta.0 - 2025-03-30

If you are upgrading from previous version, please be sure to read the release notes page.

Added

  • Add collect:* events (#411)

Changed

  • Breaking! Remove primitive type matchers (#442)
  • Breaking! Exclude whitespace when comparing diagnostic messages (#427)
  • Breaking! Add the minorVersions property to store manifest (#425)
  • Breaking! Make default compiler options strict (#424)
  • Breaking! Drop support for TypeScript 4.x (#423)
  • Breaking! Enable the rejectAnyType and rejectNeverType options by default (#422)
  • Breaking! Enable the checkSourceFiles option by default (#421)
  • Breaking! Require passing resolvedConfig to ExpectService constructor (#420)
  • Breaking! Rename AssertionNode and TestTreeNode classes (#419)
  • Breaking! Drop support for Node.js 18 (#418)
  • Breaking! Rename the --fetch command line option (#417)
  • Breaking! Remove the .toMatch() matcher (#416)
  • Breaking! Remove Store.getSupportedTags() method (#415)
  • Breaking! Remove Version.isVersionTag() method (#414)

3.5.0 - 2025-01-14

Added

  • Make code frame output configurable (#407, #408)

3.4.0 - 2025-01-11

Fixed

  • Simplify complex unions and intersections for .toBe() checks (#394)

Changed

  • Respect non-interactive environments in watch mode (#405)

3.3.1 - 2024-12-31

Fixed

  • Treat intersections or unions of identical types as identical to its constituent type (target types) (#393)

3.3.0 - 2024-12-30

Fixed

  • Print error codes at the end of the first line of diagnostics (#391)

Changed

  • Treat intersections or unions of identical types as identical to its constituent type (source types) (#392)

3.2.0 - 2024-12-23

Fixed

  • Emit the project:uses event only once per project (#386)

Added

  • New! Add the checkSourceFiles option (#388, #390)
  • Expose the SelectHookContext type (#387)

3.1.1 - 2024-12-05

Fixed

  • Allow specifying unsupported versions in target ranges (#383)

3.1.0 - 2024-12-03

Changed

  • Deprecate the Version.isVersionTag() method (#379)
  • Deprecate the Store.getSupportedTags() method (#377)

Added

  • New! Support testing against TypeScript version ranges (#377)
  • New! Add the rejectAnyType and rejectNeverType configuration options (#370, #373)
  • Add the --list command line option (#364, #366)

3.0.0 - 2024-11-05

If you are upgrading from previous version, please be sure to read the release notes page.

Fixed

  • Take into account exactOptionalPropertyTypes option when comparing types (#357)
  • Always resolve test file paths (#346)
  • Mark not existing test file as failed (#341)
  • Fix relative path normalization logic (#317)
  • When requested, always suppress fetch errors (#275)

Changed

  • Breaking! Rename the TSTYCHE_TYPESCRIPT_MODULE environment variable (#356)
  • Breaking! Use import.meta.resolve() (#355)
  • Breaking! Rename TargetResult.target property (#339)
  • Breaking! Rename the Options class (#334)
  • Breaking! Make the Config class not instantiable (#332)
  • Breaking! Make the Select class not instantiable (#331)
  • Breaking! Remove the TSTyche class (#330)
  • Breaking! Make the Store class not instantiable (#329)
  • Breaking! Make the OutputService class not instantiable (#328)
  • Breaking! Rename the ListReporter class (#326)
  • Breaking! Rename the EventHandler.on() method (#323)
  • Breaking! Deprecate the .toMatch() matcher (#315)
  • Breaking! Remove ConfigService constructor arguments (#297)
  • Breaking! Rename Task, TaskResult, Runner classes and task:* events (#296)
  • Breaking! Remove InputService constructor options (#294)
  • Breaking! Remove OutputService constructor options (#293)
  • Breaking! Rename the project:uses event (#290)
  • Breaking! Rename the store:adds event (#289)
  • Breaking! Remove the deprecated .toBeAssignable() and .toEqual() matchers (#286)
  • Breaking! Drop support for Node.js 16 (#285)
  • Breaking! Directly fetch and extract tarballs of typescript packages (#269, #291)

Added

  • Add index signature checks for the .toHaveProperty() matcher (#362)
  • Allow .toRaiseError() to take regular expressions (#358)
  • New! Add the tsconfig configuration option (#343)
  • New! Add support for custom reporters (#327)
  • New! Add support for plugins (#322, #324, #337, #349, #350, #352)
  • New! Add omit() and pick() utilities (#314)
  • Add the JsonScanner class (#310)
  • Add prune() method to StoreService class (#298)
  • Add the LockService class (#281)
  • Add the Fetcher class (#274)
  • New! Add the TSTYCHE_NPM_REGISTRY environment variable (#266, #282)

3.0.0-rc.2 - 2024-11-02

If you are upgrading from previous version, please be sure to read the release notes page.

Added

  • Add index signature checks for the .toHaveProperty() matcher (#362)

3.0.0-rc.1 - 2024-10-31

If you are upgrading from previous version, please be sure to read the release notes page.

Fixed

  • Take into account exactOptionalPropertyTypes option when comparing types (#357)

Added

  • Allow .toRaiseError() to take regular expressions (#358)

3.0.0-rc.0 - 2024-10-30

If you are upgrading from previous version, please be sure to read the release notes page.

Changed

  • Breaking! Rename the TSTYCHE_TYPESCRIPT_MODULE environment variable (#356)
  • Breaking! Use import.meta.resolve() (#355)

3.0.0-beta.6 - 2024-10-27

If you are upgrading from previous version, please be sure to read the release notes page.

Fixed

  • Always resolve test file paths (#346)

Changed

  • Require plugins to have name property (#349, #352)

Added

  • Pass context to the select hook (#350)

3.0.0-beta.5 - 2024-10-23

If you are upgrading from previous version, please be sure to read the release notes page.

Fixed

  • Mark not existing test file as failed (#341)

Changed

  • Rename TargetResult.target property (#339)

Added

  • New! Add the tsconfig configuration option (#343)

3.0.0-beta.4 - 2024-10-17

If you are upgrading from previous version, please be sure to read the release notes page.

Fixed

  • Remove environment options to ResolvedConfig (reverts #299) (#336)

Changed

  • Breaking! Rename the Options class (#334)
  • Breaking! Make the Config class not instantiable (#332)
  • Breaking! Make the Select class not instantiable (#331)
  • Breaking! Remove the TSTyche class (#330)
  • Breaking! Make the Store class not instantiable (#329)
  • Breaking! Make the OutputService class not instantiable (#328)
  • Breaking! Rename the ListReporter class (#326)
  • Breaking! Rename the EventHandler.on() method (#323)

Added

  • New! Add support for custom reporters (#327)
  • New! Add support for plugins (#322, #324, #337)

3.0.0-beta.3 - 2024-10-07

If you are upgrading from previous version, please be sure to read the release notes page.

Fixed

  • Fix relative path normalization logic (#317)

Changed

  • Breaking! Deprecate the .toMatch() matcher (#315)

Added

  • New! Add omit() and pick() utilities (#314)

3.0.0-beta.2 - 2024-10-05

If you are upgrading from previous version, please be sure to read the release notes page.

Added

  • Add the JsonScanner class (#310)

3.0.0-beta.1 - 2024-08-25

If you are upgrading from previous version, please be sure to read the release notes page.

Fixed

  • Write typescript packages atomically (#291)

Changed

  • Breaking! Remove ConfigService constructor arguments (#297)
  • Breaking! Rename Task, TaskResult, Runner classes and task:* events (#296)
  • Breaking! Remove InputService constructor options (#294)
  • Breaking! Remove OutputService constructor options (#293)
  • Breaking! Rename the project:uses event (#290)
  • Breaking! Rename the store:adds event (#289)

Added

  • Add environment options to ResolvedConfig (#299)
  • Add prune() method to StoreService class (#298)

3.0.0-beta.0 - 2024-08-12

If you are upgrading from previous version, please be sure to read the release notes page.

Fixed

  • When requested, always suppress fetch errors (#275)

Changed

  • Breaking! Remove the deprecated .toBeAssignable() and .toEqual() matchers (#286)
  • Breaking! Drop support for Node.js 16 (#285)
  • Breaking! Directly fetch and extract tarballs of typescript packages (#269)

Added

  • Add the LockService class (#281)
  • Add the Fetcher class (#274)
  • New! Add the TSTYCHE_NPM_REGISTRY environment variable (#266, #282)

2.1.1 - 2024-07-27

Fixed

  • Mark warning locations in yellow (#262)
  • Support .toAcceptProps() on TypeScript 4.5 and below (#261)

2.1.0 - 2024-07-15

Fixed

  • Allow empty config file (#239)
  • Handle not supported matchers (#227)

Changed

  • Show related diagnostics, when provided by TypeScript (#242)
  • Mark the entire locations in diagnostic messages (#238, #247, #251, #253, #255)
  • In watch mode, return the list of test files as an async iterable (#233, #232)

Added

  • New! Add the .toAcceptProps() matcher (#237)

2.0.0 - 2024-06-10

If you are upgrading from previous version, please be sure to read the release notes page.

Fixed

  • Always allow passing cancellationToken as an argument (#206)
  • Breaking! Always set the configFilePath property in the resolved config (#203)
  • Breaking! Do not return the Result from test runner (#188)
  • Collect and handle nested expect() assertions (#156)

Changed

  • Breaking! Use fetch() global (#214)
  • Breaking! Use the jsx-runtime transform for output components (#199, #219)
  • Breaking! Drop support for Node.js 14 (#198)
  • Breaking! Deprecate .toEqual() in favour of .toBe() (#151)
  • Breaking! Deprecate .toBeAssignable() in favour of .toBeAssignableWith() (#142)

Added

  • Add the DiagnosticOrigin class (#216)
  • Add the TestFile class (#189)
  • New! Add the watch mode (#170, #173, #204, #208, #213, #218)
  • Add the SelectService class (#165)
  • New! Add .toBe() matcher (#151)
  • New! Add .toBeAssignableTo() and .toBeAssignableWith() matchers (#141)

2.0.0-rc.2 - 2024-06-08

If you are upgrading from previous version, please be sure to read the release notes page.

Added

  • Exit the watch mode when q is pressed (#218)

2.0.0-rc.1 - 2024-06-04

If you are upgrading from previous version, please be sure to read the release notes page.

Fixed

  • Show deprecation warnings for each test file (#217)

2.0.0-rc.0 - 2024-06-03

If you are upgrading from previous version, please be sure to read the release notes page.

Changed

  • Add the DiagnosticOrigin class (#216)
  • Breaking! Use fetch() global (#214)

Fixed

  • Allow ./ in the beginning of the testFileMatch patterns (#215)

2.0.0-beta.1 - 2024-05-27

If you are upgrading from previous version, please be sure to read the release notes page.

Changed

  • Breaking! Always set the configFilePath property in the resolved config (#203)
  • Breaking! Use the jsx-runtime transform for output components (#199)
  • Breaking! Drop support for Node.js 14 (#198)
  • Breaking! Do not return the Result from test runner (#188)

Fixed

  • Always allow passing cancellationToken as an argument (#206)
  • Support the failFast option in the watch mode (#204)
  • Make sure recursive watch is available (#200)

Added

  • New! Watch the TSTyche config file for changes (#208, #213)
  • Add the TestFile class (#189)

2.0.0-beta.0 - 2024-03-28

If you are upgrading from previous version, please be sure to read the release notes page.

Changed

  • Breaking! Allow selecting test files with any extensions (#153)
  • Breaking! Deprecate .toEqual() in favour of .toBe() (#151)
  • Breaking! Deprecate .toBeAssignable() in favour of .toBeAssignableWith() (#142)

Added

  • Do not allow --watch in CI environments (#173)
  • New! Add the watch mode (#170)
  • Add the SelectService class (#165)
  • Collect and handle nested expect() assertions (#156)
  • New! Add .toBe() matcher (#151)
  • New! Add .toBeAssignableTo() and .toBeAssignableWith() matchers (#141)

1.1.0 - 2024-02-27

Added

  • New! Support for Node.js 14 (#136)
  • Add the CancellationToken class (#135)

Fixed

  • Improve behavior of timeout errors (#133, #134)

1.0.0 - 2024-02-20

Stable release based on 1.0.0-rc.2.

1.0.0-rc.2 - 2024-02-14

Fixed

  • Use the isTypeRelatedTo() method directly, to make strict subtype checks possible (#127, #126)

1.0.0-rc.1 - 2024-02-10

Changed

  • Breaking! Remove the disableTestFileLookup option in favor of testFileMatch: [] (#121)

Added

  • New! Set module: "preserve" in the default compiler options for inferred project that are using TypeScript 5.4 and up (#111)

Fixed

  • Do not select test files, if testFileMatch is an empty list (#120)

1.0.0-rc - 2024-01-28

Changed

  • Breaking! Replace the allowNoTestFiles option with disableTestFileLookup (#104)

Added

  • New! Set default compiler options for inferred (e.g. JavaScript) projects (#93)
  • Add the TSTYCHE_NO_INTERACTIVE environment variable (#88)
  • Add the TSTYCHE_TYPESCRIPT_PATH environment variable (#84)

Fixed

  • Only select TypeScript and JavaScript files for test run (#105)

1.0.0-beta.9 - 2024-01-05

Fixed

  • Fix "target": ["current"] support for TypeScript 5.2 and below (#83)

1.0.0-beta.8 - 2024-01-05

Changed

  • Breaking! Make "target": ["current"] the default instead of "target": ["latest"] (#81, #80, #66)
  • New! Load the installed TypeScript package for type testing instead of installing another copy to the store (#71, #64)

Added

  • Add the Path class (#59)

Fixed

  • Correctly handle command line options that do not take a value (#58)

1.0.0-beta.7 - 2023-12-29

Changed

  • Breaking! Add new Expect class to validate provided values and orchestrate matchers logic (#39)

Added

  • New! Load local language service plugins to support files like .svelte or .vue (#56)

Fixed

  • Make the source argument checks stricter for the .toHaveProperty() matcher (#46)

1.0.0-beta.6 - 2023-12-03

Added

  • New! Add .toHaveProperty() matcher (#36)

Fixed

  • Accept template literals as arguments of the .toRaiseError() matcher (#38)

1.0.0-beta.5 - 2023-11-27

Changed

  • Breaking! Move retry logic to the Lock class (#31)
  • Bring back support for Node.js 16 (#28, #27)

Added

  • New! Add support for the current target tag (#33)

Fixed

  • Allow .raiseError() to take template literals as arguments (#35)

1.0.0-beta.4 - 2023-11-24

Added

  • Use Node.js Fetch API (#23)

Removed

  • Breaking! Remove the context() helper (#24)
  • Breaking! Drop support for Node.js 16 (#22)
  • Breaking! Rename methods of the StoreService class (5d74201)

Fixed

  • Tune up behavior of .skip and .only run mode flags (#25)
  • Clean up error messages of primitive type matchers (#21)
  • Normalize installationPath path output (#19)

1.0.0-beta.3 - 2023-11-13

Fixed

1.0.0-beta.2 - 2023-11-12

Fixed

  • Support 'node10' resolution (#7)

1.0.0-beta.1 - 2023-11-09

Fixed

  • Include 'cjs' files in the published package (90b6473)

1.0.0-beta.0 - 2023-11-09

First pre-release.