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A light-weight TDD / BDD framework for Objective-C & Cocoa

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README.md

Specta

A light-weight TDD / BDD framework for Objective-C & Cocoa.

FEATURES

  • RSpec-like BDD DSL
  • Super quick and easy to set up
  • Runs on top of XCTest
  • Excellent Xcode integration

SCREENSHOT

Specta Screenshot

SETUP

Use CocoaPods

target :MyApp do
  # your app dependencies
end

target :MyAppTests do
  pod 'Specta',      '~> 0.2.1'
  # pod 'Expecta',     '~> 0.2.3'   # expecta matchers
  # pod 'OCMock',      '~> 2.2.1'   # OCMock
  # pod 'OCHamcrest',  '~> 3.0.0'   # hamcrest matchers
  # pod 'OCMockito',   '~> 1.0.0'   # OCMock
  # pod 'LRMocky',     '~> 0.9.1'   # LRMocky
end

or

  1. Clone from Github.
  2. Run rake in project root to build.
  3. Add a "Cocoa/Cocoa Touch Unit Testing Bundle" target if you don't already have one.
  4. Copy and add all header files in products folder to the Test target in your Xcode project.
  5. For OS X projects, copy and add libSpecta-macosx.a in products folder to the Test target in your Xcode project.
    For iOS projects, copy and add libSpecta-ios-universal.a in products folder to the Test target in your Xcode project.
  6. Add -ObjC and -all_load to the "Other Linker Flags" build setting for the Spec/Test target in your Xcode project.
  7. Add the following to your test code.
#import "Specta.h"

Standard XCTest matchers such as XCTAssertEqualObjects and XCTAssertNil work, but you probably want to add a nicer matcher framework - Expecta to your setup. Or if you really prefer, OCHamcrest works fine too. Also, add a mocking framework: OCMock.

WRITING SPECS

#import "Specta.h"

SharedExamplesBegin(MySharedExamples)
// Global shared examples are shared across all spec files.

sharedExamplesFor(@"a shared behavior", ^(NSDictionary *data) {
  it(@"should do some stuff", ^{
    id obj = data[@"key"];
    // ...
  });
});

SharedExamplesEnd

SpecBegin(Thing)

describe(@"Thing", ^{
  sharedExamplesFor(@"another shared behavior", ^(NSDictionary *data) {
    // Locally defined shared examples can override global shared examples within its scope.
  });

  beforeAll(^{
    // This is run once and only once before all of the examples
    // in this group and before any beforeEach blocks.
  });

  beforeEach(^{
    // This is run before each example.
  });

  it(@"should do stuff", ^{
    // This is an example block. Place your assertions here.
  });

  it(@"should do some stuff asynchronously", ^AsyncBlock {
    // Async example blocks need to invoke done() callback.
    done();
  });

  itShouldBehaveLike(@"a shared behavior", @{@"key" : @"obj"});

  itShouldBehaveLike(@"another shared behavior", ^{
    // Use a block that returns a dictionary if you need the context to be evaluated lazily,
    // e.g. to use an object prepared in a beforeEach block.
    return @{@"key" : @"obj"};
  });

  describe(@"Nested examples", ^{
    it(@"should do even more stuff", ^{
      // ...
    });
  });

  pending(@"pending example");

  pending(@"another pending example", ^{
    // ...
  });

  afterEach(^{
    // This is run after each example.
  });

  afterAll(^{
    // This is run once and only once after all of the examples
    // in this group and after any afterEach blocks.
  });
});

SpecEnd
  • beforeEach and afterEach are also aliased as before and after respectively.
  • describe is also aliased as context.
  • it is also aliased as example and specify.
  • itShouldBehaveLike is also aliased as itBehavesLike.
  • Use pending or prepend x to describe, context, example, it, and specify to mark examples or groups as pending.
  • Use ^AsyncBlock as shown in the example above to make examples wait for completion. done() callback needs to be invoked to let Specta know that your test is complete. The default timeout is 10.0 seconds but this can be changed by calling the function setAsyncSpecTimeout(NSTimeInterval timeout).
  • (before|after)(Each/All) also accept ^AsyncBlocks.
  • Do #define SPT_CEDAR_SYNTAX before importing Specta if you prefer to write SPEC_BEGIN and SPEC_END instead of SpecBegin and SpecEnd.
  • Prepend f to your describe, context, example, it, and specify to set focus on examples or groups. When specs are focused, all unfocused specs are skipped.
  • To use original XCTest reporter, set an environment variable named SPECTA_REPORTER_CLASS to SPTXCTestReporter in your test scheme.

CONTRIBUTION GUIDELINES

  • Please use only spaces and indent 2 spaces at a time.
  • Please prefix instance variable names with a single underscore (_).
  • Please prefix custom classes and functions defined in the global scope with SPT.

LICENSE

Copyright (c) 2012-2013 Specta Team. This software is licensed under the MIT License.

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