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DefaultGroovyMethodsSTCTest.groovy
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DefaultGroovyMethodsSTCTest.groovy
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/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package groovy.transform.stc
/**
* Unit tests for static type checking : default groovy methods.
*/
class DefaultGroovyMethodsSTCTest extends StaticTypeCheckingTestCase {
void testEach() {
assertScript '''
['a','b'].each { // DGM#each(Object, Closure)
println it // DGM#println(Object,Object)
}
'''
assertScript '''
['a','b'].eachWithIndex { it, i ->// DGM#eachWithIndex(Object, Closure)
println it // DGM#println(Object,Object)
}
'''
}
void testStringToInteger() {
assertScript '''
String name = "123"
name.toInteger() // toInteger() is defined by DGM
'''
}
void testVariousAssignmentsThenToInteger() {
assertScript '''
class A {
void foo() {}
}
def name = new A()
name.foo()
name = 1
name = '123'
name.toInteger() // toInteger() is defined by DGM
'''
}
void testMethodsOnPrimitiveTypes() {
assertScript '''
1.times { it }
'''
assertScript '''
true.equals { it }
'''
}
void testShouldAcceptMethodFromDefaultDateMethods() {
assertScript '''
def s = new Date()
println s.year
println s.format("yyyyMMdd")
'''
}
// GROOVY-5568
void testPropertySemantics1() {
assertScript '''
String test(InputStream input) {
input.text // IOGroovyMethods#getText(InputStream)
}
assert test(new ByteArrayInputStream('foo'.bytes)) == 'foo'
'''
assertScript '''
def chars = new StringBuilder('foo').chars // StringGroovyMethods#getChars(CharSequence)
assert chars == new char[] {'f','o','o'}
'''
assertScript '''
def a = Character.valueOf((char) 'a')
assert a.letter // DefaultGroovyMethods#isLetter(Character)
'''
}
// GROOVY-10075
void testPropertySemantics2() {
// see org.codehaus.groovy.runtime.m12n.TestStringExtension
assertScript '''
List<String> strings = ['x','y','z']
assert strings.getSequence() == 'x'
assert strings.getString() == 'x'
//assert strings.sequence == 'x'
//assert strings.string == 'x'
'''
shouldFailWithMessages '''
List<Number> numbers = [1, 2, 3]
numbers.getSequence()
numbers.getString()
numbers.sequence
numbers.string
''',
'Cannot call <CS extends java.lang.CharSequence> org.codehaus.groovy.runtime.m12n.TestStringExtension#getSequence(java.util.List<CS>) with arguments [java.util.ArrayList<java.lang.Number>]',
'Cannot call org.codehaus.groovy.runtime.m12n.TestStringExtension#getString(java.util.List<java.lang.String>) with arguments [java.util.ArrayList<java.lang.Number>]',
'No such property: sequence for class: java.util.ArrayList',
'No such property: string for class: java.util.ArrayList'
}
// GROOVY-5584
void testEachOnMap() {
assertScript '''
import org.codehaus.groovy.transform.stc.ExtensionMethodNode
import org.codehaus.groovy.runtime.DefaultGroovyMethods
@ASTTest(phase=INSTRUCTION_SELECTION, value= {
def mn = node.rightExpression.getNodeMetaData(DIRECT_METHOD_CALL_TARGET)
assert mn
assert mn instanceof ExtensionMethodNode
assert mn.declaringClass == MAP_TYPE
def en = mn.extensionMethodNode
assert en.declaringClass == make(DefaultGroovyMethods)
assert en.parameters[0].type == MAP_TYPE
})
def x = [a:1, b:3].each { k, v -> "$k$v" }
'''
}
// GROOVY-6961
void testCollectMany() {
assertScript '''
class ListCompilerAndReverser {
static List<Integer> revlist(List<List<String>> list) {
list.collectMany { strings ->
strings.collect {
it.toInteger()
}
} sort { int it ->
-it
}
}
}
assert ListCompilerAndReverser.revlist([["1", "2", "3"], ["4", "5", "6"], ["7", "8", "9"]]) == [9, 8, 7, 6, 5, 4, 3, 2, 1]
'''
}
// GROOVY-7283
void testArrayMinMaxSupportsOneAndTwoArgClosures() {
assertScript '''
Date now = new Date()
Date then = now + 7
def dates = [now, then] as Date[]
assert dates.min() == now
assert dates.max() == then
assert dates.min{ d -> d.time } == now
assert dates.max{ d1, d2 -> d2.time <=> d1.time } == now
'''
}
// GROOVY-7283
void testListWithDefaultInfersInt() {
assertScript '''
def list = [].withDefault{ it.longValue() }
list[0] = list[3]
assert list[0] == 3 && list[0].class == Long
'''
}
// GROOVY-7952
void testIsGetterMethodAsProperty() {
assertScript '''
assert !'abc'.allWhitespace
'''
}
// GROOVY-7976
void testSortMethodsWithComparatorAcceptingSubclass() {
assertScript '''
class SecondLetterComparator implements Comparator<? extends CharSequence> {
int compare(CharSequence cs1, CharSequence cs2) {
cs1.charAt(1) <=> cs2.charAt(1)
}
}
def orig1 = ['ant', 'rat', 'bug', 'dog']
def sorted1 = orig1.sort(false, new SecondLetterComparator())
assert orig1 == ['ant', 'rat', 'bug', 'dog']
assert sorted1 == ['rat', 'ant', 'dog', 'bug']
String[] orig2 = ['ant', 'rat', 'bug', 'dog']
def sorted2 = orig2.sort(false, new SecondLetterComparator())
assert orig2 == ['ant', 'rat', 'bug', 'dog']
assert sorted2 == ['rat', 'ant', 'dog', 'bug']
orig2.sort(new SecondLetterComparator())
assert orig2 == ['rat', 'ant', 'dog', 'bug']
def orig3 = [ant:5, rat:10, bug:15, dog:20]
def sorted3 = orig3.sort(new SecondLetterComparator())
assert orig3 == [ant:5, rat:10, bug:15, dog:20]
assert sorted3*.value == [10, 5, 20, 15]
'''
}
// GROOVY-8205
void testEachOnEnumValues() {
assertScript '''
enum Functions {
A, B, C
}
def m() {
def results = []
Functions.values().each { results << it.name() }
results
}
def m2() {
def results = [:]
Functions.values().eachWithIndex { val, idx -> results[idx] = val.name() }
results
}
assert m() == ['A', 'B', 'C']
assert m2() == [0: 'A', 1: 'B', 2: 'C']
'''
}
void testListGetAtNext() {
assertScript '''
def test() {
def list = [0, 1, 2, 3]
for (i in 1..2) {
list[i-1]++
}
list
}
assert test() == [1, 2, 2, 3]
'''
}
// GROOVY-8840
void testListGetAtGetAtNext() {
assertScript '''
def test() {
def list = [0, 1, 2, 3]
List<Integer> other = [1]
list[other[0]]++
// ^^^^^^^^ puts T on operand stack, not int/Integer
list
}
assert test() == [0, 2, 2, 3]
'''
}
void testListGetAtGetAtNext2() {
assertScript '''
def test() {
def list = [0, 1, 2, 3]
List<Integer> other = [1]
list[(int)other[0]]++
list
}
assert test() == [0, 2, 2, 3]
'''
}
void testListGetAtFirstNext() {
assertScript '''
def test() {
def list = [0, 1, 2, 3]
List<Integer> other = [1]
list[other.first()]++
list
}
assert test() == [0, 2, 2, 3]
'''
}
// GROOVY-9420
void testMapGetVsGetAt() {
assertScript '''
void check(String val) {
assert val == 'bar'
}
Object getKey() {
return 'foo'
}
void test() {
Map<String, String> map = [foo: 'bar']
def one = map.get(key)
check(one)
def two = map[key]
check(two)
}
test()
'''
}
// GROOVY-9529
void testMapGetAtVsObjectGetAt() {
assertScript '''
interface X extends Map<Object, Object> {}
interface Y extends X {}
class C extends HashMap<Object, Object> implements Y {}
Y newMap() {
new C().tap {
put('foo', 'bar')
}
}
void test() {
def map = newMap()
assert map['foo'] == 'bar'
}
test()
'''
}
}