测试指南

class TranslationService {
    String convert(String key) {
        return "test"
    }
}

def service = [convert: { String key -> 'some text' }] as TranslationService
assert 'some text' == service.convert('key.text')

def service = { String key -> 'some text' } as TranslationService
assert 'some text' == service.convert('key.text')

abstract class BaseService {
    abstract void doSomething()
}

BaseService service = { -> println 'doing something' }
service.doSomething()

class Person {
    String first, last
}

class Family {
    Person father, mother
    def nameOfMother() { "$mother.first $mother.last" }
}

def mock = new MockFor(Person)      (1)
mock.demand.getFirst{ 'dummy' }
mock.demand.getLast{ 'name' }
mock.use {                          (2)
    def mary = new Person(first:'Mary', last:'Smith')
    def f = new Family(mother:mary)
    assert f.nameOfMother() == 'dummy name'
}
mock.expect.verify()                (3)

def stub = new StubFor(Person)      (1)
stub.demand.with {                  (2)
    getLast{ 'name' }
    getFirst{ 'dummy' }
}
stub.use {                          (3)
    def john = new Person(first:'John', last:'Smith')
    def f = new Family(father:john)
    assert f.father.first == 'dummy'
    assert f.father.last == 'name'
}
stub.expect.verify()                (4)

String.metaClass.swapCase = {->
    def sb = new StringBuffer()
    delegate.each {
        sb << (Character.isUpperCase(it as char) ? Character.toLowerCase(it as char) :
            Character.toUpperCase(it as char))
    }
    sb.toString()
}

def s = "heLLo, worLD!"
assert s.swapCase() == 'HEllO, WORld!'

class Book {
    String title
}

Book.metaClass.static.create << { String title -> new Book(title:title) }

def b = Book.create("The Stand")
assert b.title == 'The Stand'

Book.metaClass.constructor << { String title -> new Book(title:title) }

def b = new Book("The Stand")
assert b.title == 'The Stand'

GroovySystem.metaClassRegistry.removeMetaClass(String)

def b = new Book(title: "The Stand")
b.metaClass.getTitle {-> 'My Title' }

assert b.title == 'My Title'

void testCombinations() {
    def combinations = [[2, 3],[4, 5, 6]].combinations()
    assert combinations == [[2, 4], [3, 4], [2, 5], [3, 5], [2, 6], [3, 6]]
}

void testEachCombination() {
    [[2, 3],[4, 5, 6]].eachCombination { println it[0] + it[1] }
}

def pluginVersion = '<plugin version>'
def groovyVersion = '<groovy version>'
def junitVersion = '<junit version>'

buildscript {
    repositories {
        mavenCentral()
    }
    dependencies {
        classpath 'com.eriwen:gradle-cobertura-plugin:${pluginVersion}'
    }
}

apply plugin: 'groovy'
apply plugin: 'cobertura'

repositories {
    mavenCentral()
}

dependencies {
    compile "org.codehaus.groovy:groovy-all:${groovyVersion}"
    testCompile "junit:junit:${junitVersion}"
}

cobertura {
    format = 'html'
    includes = ['**/*.java', '**/*.groovy']
    excludes = ['com/thirdparty/**/*.*']
}

class MyTestCase extends GroovyTestCase {

    void testAssertions() {
        assertTrue(1 == 1)
        assertEquals("test", "test")

        def x = "42"
        assertNotNull "x must not be null", x
        assertNull null

        assertSame x, x
    }

}

void testScriptAssertions() {
    assertScript '''
        def x = 1
        def y = 2

        assert x + y == 3
    '''
}

void testInvalidIndexAccess1() {
    def numbers = [1,2,3,4]
    shouldFail {
        numbers.get(4)
    }
}

void testInvalidIndexAccess2() {
    def numbers = [1,2,3,4]
    shouldFail IndexOutOfBoundsException, {
        numbers.get(4)
    }
}

void testInvalidIndexAccess3() {
    def numbers = [1,2,3,4]
    def msg = shouldFail IndexOutOfBoundsException, {
        numbers.get(4)
    }
    assert msg.contains('Index: 4, Size: 4') ||
        msg.contains('Index 4 out-of-bounds for length 4') ||
        msg.contains('Index 4 out of bounds for length 4')
}

void testNotYetImplemented1() {
    if (notYetImplemented()) return   (1)

    assert 1 == 2                     (2)
}

@NotYetImplemented
void testNotYetImplemented2() {
    assert 1 == 2
}