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提交 7c3a1849 编写于 作者: S Sam Brannen
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Polish SpEL SelectionAndProjectionTests

上级 01e50fb6
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Showing with 60 addition and 119 deletion
spring-expression/src/test/java/org/springframework/expression/spel/SelectionAndProjectionTests.java
浏览文件 @ 7c3a1849
/*
* Copyright 2002-2020 the original author or authors.
* Copyright 2002-2021 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
......@@ -17,7 +17,6 @@
package org.springframework.expression.spel;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.LinkedHashSet;
import java.util.List;
import java.util.Map;
......@@ -40,98 +39,79 @@ import static org.assertj.core.api.Assertions.assertThat;
* @author Sam Brannen
* @author Juergen Hoeller
*/
public class SelectionAndProjectionTests {
class SelectionAndProjectionTests {
@Test
public void selectionWithList() throws Exception {
@SuppressWarnings("unchecked")
void selectionWithList() throws Exception {
Expression expression = new SpelExpressionParser().parseRaw("integers.?[#this<5]");
EvaluationContext context = new StandardEvaluationContext(new ListTestBean());
Object value = expression.getValue(context);
boolean condition = value instanceof List;
assertThat(condition).isTrue();
List<?> list = (List<?>) value;
assertThat(list.size()).isEqualTo(5);
assertThat(list.get(0)).isEqualTo(0);
assertThat(list.get(1)).isEqualTo(1);
assertThat(list.get(2)).isEqualTo(2);
assertThat(list.get(3)).isEqualTo(3);
assertThat(list.get(4)).isEqualTo(4);
assertThat(value).isInstanceOf(List.class);
List<Integer> list = (List<Integer>) value;
assertThat(list).containsExactly(0, 1, 2, 3, 4);
}
@Test
public void selectFirstItemInList() throws Exception {
void selectFirstItemInList() throws Exception {
Expression expression = new SpelExpressionParser().parseRaw("integers.^[#this<5]");
EvaluationContext context = new StandardEvaluationContext(new ListTestBean());
Object value = expression.getValue(context);
boolean condition = value instanceof Integer;
assertThat(condition).isTrue();
assertThat(value).isInstanceOf(Integer.class);
assertThat(value).isEqualTo(0);
}
@Test
public void selectLastItemInList() throws Exception {
void selectLastItemInList() throws Exception {
Expression expression = new SpelExpressionParser().parseRaw("integers.$[#this<5]");
EvaluationContext context = new StandardEvaluationContext(new ListTestBean());
Object value = expression.getValue(context);
boolean condition = value instanceof Integer;
assertThat(condition).isTrue();
assertThat(value).isInstanceOf(Integer.class);
assertThat(value).isEqualTo(4);
}
@Test
public void selectionWithSet() throws Exception {
@SuppressWarnings("unchecked")
void selectionWithSet() throws Exception {
Expression expression = new SpelExpressionParser().parseRaw("integers.?[#this<5]");
EvaluationContext context = new StandardEvaluationContext(new SetTestBean());
Object value = expression.getValue(context);
boolean condition = value instanceof List;
assertThat(condition).isTrue();
List<?> list = (List<?>) value;
assertThat(list.size()).isEqualTo(5);
assertThat(list.get(0)).isEqualTo(0);
assertThat(list.get(1)).isEqualTo(1);
assertThat(list.get(2)).isEqualTo(2);
assertThat(list.get(3)).isEqualTo(3);
assertThat(list.get(4)).isEqualTo(4);
assertThat(value).isInstanceOf(List.class);
List<Integer> list = (List<Integer>) value;
assertThat(list).containsExactly(0, 1, 2, 3, 4);
}
@Test
public void selectFirstItemInSet() throws Exception {
void selectFirstItemInSet() throws Exception {
Expression expression = new SpelExpressionParser().parseRaw("integers.^[#this<5]");
EvaluationContext context = new StandardEvaluationContext(new SetTestBean());
Object value = expression.getValue(context);
boolean condition = value instanceof Integer;
assertThat(condition).isTrue();
assertThat(value).isInstanceOf(Integer.class);
assertThat(value).isEqualTo(0);
}
@Test
public void selectLastItemInSet() throws Exception {
void selectLastItemInSet() throws Exception {
Expression expression = new SpelExpressionParser().parseRaw("integers.$[#this<5]");
EvaluationContext context = new StandardEvaluationContext(new SetTestBean());
Object value = expression.getValue(context);
boolean condition = value instanceof Integer;
assertThat(condition).isTrue();
assertThat(value).isInstanceOf(Integer.class);
assertThat(value).isEqualTo(4);
}
@Test
public void selectionWithIterable() throws Exception {
@SuppressWarnings("unchecked")
void selectionWithIterable() throws Exception {
Expression expression = new SpelExpressionParser().parseRaw("integers.?[#this<5]");
EvaluationContext context = new StandardEvaluationContext(new IterableTestBean());
Object value = expression.getValue(context);
boolean condition = value instanceof List;
assertThat(condition).isTrue();
List<?> list = (List<?>) value;
assertThat(list.size()).isEqualTo(5);
assertThat(list.get(0)).isEqualTo(0);
assertThat(list.get(1)).isEqualTo(1);
assertThat(list.get(2)).isEqualTo(2);
assertThat(list.get(3)).isEqualTo(3);
assertThat(list.get(4)).isEqualTo(4);
assertThat(value).isInstanceOf(List.class);
List<Integer> list = (List<Integer>) value;
assertThat(list).containsExactly(0, 1, 2, 3, 4);
}
@Test
public void selectionWithArray() throws Exception {
void selectionWithArray() throws Exception {
Expression expression = new SpelExpressionParser().parseRaw("integers.?[#this<5]");
EvaluationContext context = new StandardEvaluationContext(new ArrayTestBean());
Object value = expression.getValue(context);
......@@ -139,36 +119,29 @@ public class SelectionAndProjectionTests {
TypedValue typedValue = new TypedValue(value);
assertThat(typedValue.getTypeDescriptor().getElementTypeDescriptor().getType()).isEqualTo(Integer.class);
Integer[] array = (Integer[]) value;
assertThat(array.length).isEqualTo(5);
assertThat(array[0]).isEqualTo(0);
assertThat(array[1]).isEqualTo(1);
assertThat(array[2]).isEqualTo(2);
assertThat(array[3]).isEqualTo(3);
assertThat(array[4]).isEqualTo(4);
assertThat(array).containsExactly(0, 1, 2, 3, 4);
}
@Test
public void selectFirstItemInArray() throws Exception {
void selectFirstItemInArray() throws Exception {
Expression expression = new SpelExpressionParser().parseRaw("integers.^[#this<5]");
EvaluationContext context = new StandardEvaluationContext(new ArrayTestBean());
Object value = expression.getValue(context);
boolean condition = value instanceof Integer;
assertThat(condition).isTrue();
assertThat(value).isInstanceOf(Integer.class);
assertThat(value).isEqualTo(0);
}
@Test
public void selectLastItemInArray() throws Exception {
void selectLastItemInArray() throws Exception {
Expression expression = new SpelExpressionParser().parseRaw("integers.$[#this<5]");
EvaluationContext context = new StandardEvaluationContext(new ArrayTestBean());
Object value = expression.getValue(context);
boolean condition = value instanceof Integer;
assertThat(condition).isTrue();
assertThat(value).isInstanceOf(Integer.class);
assertThat(value).isEqualTo(4);
}
@Test
public void selectionWithPrimitiveArray() throws Exception {
void selectionWithPrimitiveArray() throws Exception {
Expression expression = new SpelExpressionParser().parseRaw("ints.?[#this<5]");
EvaluationContext context = new StandardEvaluationContext(new ArrayTestBean());
Object value = expression.getValue(context);
......@@ -176,51 +149,41 @@ public class SelectionAndProjectionTests {
TypedValue typedValue = new TypedValue(value);
assertThat(typedValue.getTypeDescriptor().getElementTypeDescriptor().getType()).isEqualTo(Integer.class);
Integer[] array = (Integer[]) value;
assertThat(array.length).isEqualTo(5);
assertThat(array[0]).isEqualTo(0);
assertThat(array[1]).isEqualTo(1);
assertThat(array[2]).isEqualTo(2);
assertThat(array[3]).isEqualTo(3);
assertThat(array[4]).isEqualTo(4);
assertThat(array).containsExactly(0, 1, 2, 3, 4);
}
@Test
public void selectFirstItemInPrimitiveArray() throws Exception {
void selectFirstItemInPrimitiveArray() throws Exception {
Expression expression = new SpelExpressionParser().parseRaw("ints.^[#this<5]");
EvaluationContext context = new StandardEvaluationContext(new ArrayTestBean());
Object value = expression.getValue(context);
boolean condition = value instanceof Integer;
assertThat(condition).isTrue();
assertThat(value).isInstanceOf(Integer.class);
assertThat(value).isEqualTo(0);
}
@Test
public void selectLastItemInPrimitiveArray() throws Exception {
void selectLastItemInPrimitiveArray() throws Exception {
Expression expression = new SpelExpressionParser().parseRaw("ints.$[#this<5]");
EvaluationContext context = new StandardEvaluationContext(new ArrayTestBean());
Object value = expression.getValue(context);
boolean condition = value instanceof Integer;
assertThat(condition).isTrue();
assertThat(value).isInstanceOf(Integer.class);
assertThat(value).isEqualTo(4);
}
@Test
@SuppressWarnings("unchecked")
public void selectionWithMap() {
void selectionWithMap() {
EvaluationContext context = new StandardEvaluationContext(new MapTestBean());
ExpressionParser parser = new SpelExpressionParser();
Expression exp = parser.parseExpression("colors.?[key.startsWith('b')]");
Map<String, String> colorsMap = (Map<String, String>) exp.getValue(context);
assertThat(colorsMap.size()).isEqualTo(3);
assertThat(colorsMap.containsKey("beige")).isTrue();
assertThat(colorsMap.containsKey("blue")).isTrue();
assertThat(colorsMap.containsKey("brown")).isTrue();
assertThat(colorsMap).containsOnlyKeys("beige", "blue", "brown");
}
@Test
@SuppressWarnings("unchecked")
public void selectFirstItemInMap() {
void selectFirstItemInMap() {
EvaluationContext context = new StandardEvaluationContext(new MapTestBean());
ExpressionParser parser = new SpelExpressionParser();
......@@ -232,7 +195,7 @@ public class SelectionAndProjectionTests {
@Test
@SuppressWarnings("unchecked")
public void selectLastItemInMap() {
void selectLastItemInMap() {
EvaluationContext context = new StandardEvaluationContext(new MapTestBean());
ExpressionParser parser = new SpelExpressionParser();
......@@ -243,52 +206,43 @@ public class SelectionAndProjectionTests {
}
@Test
public void projectionWithList() throws Exception {
@SuppressWarnings("unchecked")
void projectionWithList() throws Exception {
Expression expression = new SpelExpressionParser().parseRaw("#testList.![wrapper.value]");
EvaluationContext context = new StandardEvaluationContext();
context.setVariable("testList", IntegerTestBean.createList());
Object value = expression.getValue(context);
boolean condition = value instanceof List;
assertThat(condition).isTrue();
List<?> list = (List<?>) value;
assertThat(list.size()).isEqualTo(3);
assertThat(list.get(0)).isEqualTo(5);
assertThat(list.get(1)).isEqualTo(6);
assertThat(list.get(2)).isEqualTo(7);
assertThat(value).isInstanceOf(List.class);
List<Integer> list = (List<Integer>) value;
assertThat(list).containsExactly(5, 6, 7);
}
@Test
public void projectionWithSet() throws Exception {
@SuppressWarnings("unchecked")
void projectionWithSet() throws Exception {
Expression expression = new SpelExpressionParser().parseRaw("#testList.![wrapper.value]");
EvaluationContext context = new StandardEvaluationContext();
context.setVariable("testList", IntegerTestBean.createSet());
Object value = expression.getValue(context);
boolean condition = value instanceof List;
assertThat(condition).isTrue();
List<?> list = (List<?>) value;
assertThat(list.size()).isEqualTo(3);
assertThat(list.get(0)).isEqualTo(5);
assertThat(list.get(1)).isEqualTo(6);
assertThat(list.get(2)).isEqualTo(7);
assertThat(value).isInstanceOf(List.class);
List<Integer> list = (List<Integer>) value;
assertThat(list).containsExactly(5, 6, 7);
}
@Test
public void projectionWithIterable() throws Exception {
@SuppressWarnings("unchecked")
void projectionWithIterable() throws Exception {
Expression expression = new SpelExpressionParser().parseRaw("#testList.![wrapper.value]");
EvaluationContext context = new StandardEvaluationContext();
context.setVariable("testList", IntegerTestBean.createIterable());
Object value = expression.getValue(context);
boolean condition = value instanceof List;
assertThat(condition).isTrue();
List<?> list = (List<?>) value;
assertThat(list.size()).isEqualTo(3);
assertThat(list.get(0)).isEqualTo(5);
assertThat(list.get(1)).isEqualTo(6);
assertThat(list.get(2)).isEqualTo(7);
assertThat(value).isInstanceOf(List.class);
List<Integer> list = (List<Integer>) value;
assertThat(list).containsExactly(5, 6, 7);
}
@Test
public void projectionWithArray() throws Exception {
void projectionWithArray() throws Exception {
Expression expression = new SpelExpressionParser().parseRaw("#testArray.![wrapper.value]");
EvaluationContext context = new StandardEvaluationContext();
context.setVariable("testArray", IntegerTestBean.createArray());
......@@ -297,10 +251,7 @@ public class SelectionAndProjectionTests {
TypedValue typedValue = new TypedValue(value);
assertThat(typedValue.getTypeDescriptor().getElementTypeDescriptor().getType()).isEqualTo(Number.class);
Number[] array = (Number[]) value;
assertThat(array.length).isEqualTo(3);
assertThat(array[0]).isEqualTo(5);
assertThat(array[1]).isEqualTo(5.9f);
assertThat(array[2]).isEqualTo(7);
assertThat(array).containsExactly(5, 5.9f, 7);
}
......@@ -347,12 +298,7 @@ public class SelectionAndProjectionTests {
}
public Iterable<Integer> getIntegers() {
return new Iterable<Integer>() {
@Override
public Iterator<Integer> iterator() {
return integers.iterator();
}
};
return integers::iterator;
}
}
......@@ -429,12 +375,7 @@ public class SelectionAndProjectionTests {
static Iterable<IntegerTestBean> createIterable() {
final Set<IntegerTestBean> set = createSet();
return new Iterable<IntegerTestBean>() {
@Override
public Iterator<IntegerTestBean> iterator() {
return set.iterator();
}
};
return set::iterator;
}
static IntegerTestBean[] createArray() {
......
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