/*
* Copyright 2012-2017 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.
* 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 org.springframework.boot.context.properties.bind;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Properties;
import org.junit.Before;
import org.junit.Test;
import org.mockito.Answers;
import org.mockito.ArgumentCaptor;
import org.mockito.InOrder;
import org.springframework.boot.context.properties.bind.BinderTests.ExampleEnum;
import org.springframework.boot.context.properties.source.ConfigurationPropertyName;
import org.springframework.boot.context.properties.source.ConfigurationPropertySource;
import org.springframework.boot.context.properties.source.MapConfigurationPropertySource;
import org.springframework.boot.context.properties.source.MockConfigurationPropertySource;
import org.springframework.core.ResolvableType;
import org.springframework.core.env.StandardEnvironment;
import org.springframework.test.context.support.TestPropertySourceUtils;
import static org.assertj.core.api.Assertions.assertThat;
import static org.mockito.ArgumentMatchers.any;
import static org.mockito.ArgumentMatchers.eq;
import static org.mockito.ArgumentMatchers.isA;
import static org.mockito.Mockito.inOrder;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.withSettings;
/**
* Tests for {@link MapBinder}.
*
* @author Phillip Webb
* @author Madhura Bhave
*/
public class MapBinderTests {
private static final Bindable<Map<String, String>> STRING_STRING_MAP = Bindable
.mapOf(String.class, String.class);
private static final Bindable<Map<String, Integer>> STRING_INTEGER_MAP = Bindable
.mapOf(String.class, Integer.class);
private static final Bindable<Map<Integer, Integer>> INTEGER_INTEGER_MAP = Bindable
.mapOf(Integer.class, Integer.class);
private static final Bindable<Map<String, Object>> STRING_OBJECT_MAP = Bindable
.mapOf(String.class, Object.class);
private static final Bindable<Map<String, String[]>> STRING_ARRAY_MAP = Bindable
.mapOf(String.class, String[].class);
private List<ConfigurationPropertySource> sources = new ArrayList<>();
private Binder binder;
@Before
public void setup() {
this.binder = new Binder(this.sources);
}
@Test
public void bindToMapShouldReturnPopulatedMap() throws Exception {
MockConfigurationPropertySource source = new MockConfigurationPropertySource();
source.put("foo.bar", "1");
source.put("foo.[baz]", "2");
source.put("foo[BiNg]", "3");
this.sources.add(source);
Map<String, String> result = this.binder.bind("foo", STRING_STRING_MAP).get();
assertThat(result).hasSize(3);
assertThat(result).containsEntry("bar", "1");
assertThat(result).containsEntry("baz", "2");
assertThat(result).containsEntry("BiNg", "3");
}
@Test
@SuppressWarnings("unchecked")
public void bindToMapWithEmptyPrefix() throws Exception {
MockConfigurationPropertySource source = new MockConfigurationPropertySource();
source.put("foo.bar", "1");
this.sources.add(source);
Map<String, Object> result = this.binder.bind("", STRING_OBJECT_MAP).get();
assertThat((Map<String, Object>) result.get("foo")).containsEntry("bar", "1");
}
@Test
public void bindToMapShouldConvertMapValue() throws Exception {
MockConfigurationPropertySource source = new MockConfigurationPropertySource();
source.put("foo.bar", "1");
source.put("foo.[baz]", "2");
source.put("foo[BiNg]", "3");
source.put("faf.bar", "x");
this.sources.add(source);
Map<String, Integer> result = this.binder.bind("foo", STRING_INTEGER_MAP).get();
assertThat(result).hasSize(3);
assertThat(result).containsEntry("bar", 1);
assertThat(result).containsEntry("baz", 2);
assertThat(result).containsEntry("BiNg", 3);
}
@Test
public void bindToMapShouldBindToMapValue() throws Exception {
ResolvableType type = ResolvableType.forClassWithGenerics(Map.class,
ResolvableType.forClass(String.class), STRING_INTEGER_MAP.getType());
MockConfigurationPropertySource source = new MockConfigurationPropertySource();
source.put("foo.bar.baz", "1");
source.put("foo.bar.bin", "2");
source.put("foo.far.baz", "3");
source.put("foo.far.bin", "4");
source.put("faf.far.bin", "x");
this.sources.add(source);
Map<String, Map<String, Integer>> result = this.binder
.bind("foo", Bindable.<Map<String, Map<String, Integer>>>of(type)).get();
assertThat(result).hasSize(2);
assertThat(result.get("bar")).containsEntry("baz", 1).containsEntry("bin", 2);
assertThat(result.get("far")).containsEntry("baz", 3).containsEntry("bin", 4);
}
@Test
public void bindToMapShouldBindNestedMapValue() throws Exception {
ResolvableType nestedType = ResolvableType.forClassWithGenerics(Map.class,
ResolvableType.forClass(String.class), STRING_INTEGER_MAP.getType());
ResolvableType type = ResolvableType.forClassWithGenerics(Map.class,
ResolvableType.forClass(String.class), nestedType);
MockConfigurationPropertySource source = new MockConfigurationPropertySource();
source.put("foo.nested.bar.baz", "1");
source.put("foo.nested.bar.bin", "2");
source.put("foo.nested.far.baz", "3");
source.put("foo.nested.far.bin", "4");
source.put("faf.nested.far.bin", "x");
this.sources.add(source);
Bindable<Map<String, Map<String, Map<String, Integer>>>> target = Bindable
.of(type);
Map<String, Map<String, Map<String, Integer>>> result = this.binder
.bind("foo", target).get();
Map<String, Map<String, Integer>> nested = result.get("nested");
assertThat(nested).hasSize(2);
assertThat(nested.get("bar")).containsEntry("baz", 1).containsEntry("bin", 2);
assertThat(nested.get("far")).containsEntry("baz", 3).containsEntry("bin", 4);
}
@Test
@SuppressWarnings("unchecked")
public void bindToMapWhenMapValueIsObjectShouldBindNestedMapValue() throws Exception {
MockConfigurationPropertySource source = new MockConfigurationPropertySource();
source.put("foo.nested.bar.baz", "1");
source.put("foo.nested.bar.bin", "2");
source.put("foo.nested.far.baz", "3");
source.put("foo.nested.far.bin", "4");
source.put("faf.nested.far.bin", "x");
this.sources.add(source);
Map<String, Object> result = this.binder
.bind("foo", Bindable.mapOf(String.class, Object.class)).get();
Map<String, Object> nested = (Map<String, Object>) result.get("nested");
assertThat(nested).hasSize(2);
Map<String, Object> bar = (Map<String, Object>) nested.get("bar");
assertThat(bar).containsEntry("baz", "1").containsEntry("bin", "2");
Map<String, Object> far = (Map<String, Object>) nested.get("far");
assertThat(far).containsEntry("baz", "3").containsEntry("bin", "4");
}
@Test
public void bindToMapWhenMapValueIsObjectAndNoRootShouldBindNestedMapValue()
throws Exception {
MockConfigurationPropertySource source = new MockConfigurationPropertySource();
source.put("commit.id", "abcdefg");
source.put("branch", "master");
source.put("foo", "bar");
this.sources.add(source);
Map<String, Object> result = this.binder
.bind("", Bindable.mapOf(String.class, Object.class)).get();
assertThat(result.get("commit"))
.isEqualTo(Collections.singletonMap("id", "abcdefg"));
assertThat(result.get("branch")).isEqualTo("master");
assertThat(result.get("foo")).isEqualTo("bar");
}
@Test
public void bindToMapWhenEmptyRootNameShouldBindMap() throws Exception {
MockConfigurationPropertySource source = new MockConfigurationPropertySource();
source.put("bar.baz", "1");
source.put("bar.bin", "2");
this.sources.add(source);
Map<String, Integer> result = this.binder.bind("", STRING_INTEGER_MAP).get();
assertThat(result).hasSize(2);
assertThat(result).containsEntry("bar.baz", 1).containsEntry("bar.bin", 2);
}
@Test
public void bindToMapWhenMultipleCandidateShouldBindFirst() throws Exception {
MockConfigurationPropertySource source1 = new MockConfigurationPropertySource();
source1.put("foo.bar", "1");
source1.put("foo.baz", "2");
this.sources.add(source1);
MockConfigurationPropertySource source2 = new MockConfigurationPropertySource();
source2.put("foo.baz", "3");
source2.put("foo.bin", "4");
this.sources.add(source2);
Map<String, Integer> result = this.binder.bind("foo", STRING_INTEGER_MAP).get();
assertThat(result).hasSize(3);
assertThat(result).containsEntry("bar", 1);
assertThat(result).containsEntry("baz", 2);
assertThat(result).containsEntry("bin", 4);
}
@Test
public void bindToMapWhenMultipleInSameSourceCandidateShouldBindFirst()
throws Exception {
Map<String, Object> map = new HashMap<>();
map.put("foo.bar", "1");
map.put("foo.b-az", "2");
map.put("foo.ba-z", "3");
map.put("foo.bin", "4");
MapConfigurationPropertySource propertySource = new MapConfigurationPropertySource(
map);
this.sources.add(propertySource);
Map<String, Integer> result = this.binder.bind("foo", STRING_INTEGER_MAP).get();
assertThat(result).hasSize(4);
assertThat(result).containsEntry("bar", 1);
assertThat(result).containsEntry("b-az", 2);
assertThat(result).containsEntry("ba-z", 3);
assertThat(result).containsEntry("bin", 4);
}
@Test
public void bindToMapWhenHasExistingMapShouldReplaceOnlyNewContents()
throws Exception {
this.sources.add(new MockConfigurationPropertySource("foo.bar", "1"));
Map<String, Integer> existing = new HashMap<>();
existing.put("bar", 1000);
existing.put("baz", 1001);
Bindable<Map<String, Integer>> target = STRING_INTEGER_MAP
.withExistingValue(existing);
Map<String, Integer> result = this.binder.bind("foo", target).get();
assertThat(result).isExactlyInstanceOf(HashMap.class);
assertThat(result).isSameAs(existing);
assertThat(result).hasSize(2);
assertThat(result).containsEntry("bar", 1);
assertThat(result).containsEntry("baz", 1001);
}
@Test
public void bindToMapShouldRespectMapType() throws Exception {
this.sources.add(new MockConfigurationPropertySource("foo.bar", "1"));
ResolvableType type = ResolvableType.forClassWithGenerics(HashMap.class,
String.class, Integer.class);
Object defaultMap = this.binder.bind("foo", STRING_INTEGER_MAP).get();
Object customMap = this.binder.bind("foo", Bindable.of(type)).get();
assertThat(customMap).isExactlyInstanceOf(HashMap.class)
.isNotInstanceOf(defaultMap.getClass());
}
@Test
public void bindToMapWhenNoValueShouldReturnUnbound() throws Exception {
this.sources.add(new MockConfigurationPropertySource("faf.bar", "1"));
BindResult<Map<String, Integer>> result = this.binder.bind("foo",
STRING_INTEGER_MAP);
assertThat(result.isBound()).isFalse();
}
@Test
public void bindToMapShouldConvertKey() throws Exception {
MockConfigurationPropertySource source = new MockConfigurationPropertySource();
source.put("foo[0]", "1");
source.put("foo[1]", "2");
source.put("foo[9]", "3");
this.sources.add(source);
Map<Integer, Integer> result = this.binder.bind("foo", INTEGER_INTEGER_MAP).get();
assertThat(result).hasSize(3);
assertThat(result).containsEntry(0, 1);
assertThat(result).containsEntry(1, 2);
assertThat(result).containsEntry(9, 3);
}
@Test
public void bindToMapShouldBeGreedyForStrings() throws Exception {
MockConfigurationPropertySource source = new MockConfigurationPropertySource();
source.put("foo.aaa.bbb.ccc", "b");
source.put("foo.bbb.ccc.ddd", "a");
source.put("foo.ccc.ddd.eee", "r");
this.sources.add(source);
Map<String, String> result = this.binder.bind("foo", STRING_STRING_MAP).get();
assertThat(result).hasSize(3);
assertThat(result).containsEntry("aaa.bbb.ccc", "b");
assertThat(result).containsEntry("bbb.ccc.ddd", "a");
assertThat(result).containsEntry("ccc.ddd.eee", "r");
}
@Test
public void bindToMapShouldBeGreedyForScalars() throws Exception {
MockConfigurationPropertySource source = new MockConfigurationPropertySource();
source.put("foo.aaa.bbb.ccc", "foo-bar");
source.put("foo.bbb.ccc.ddd", "BAR_BAZ");
source.put("foo.ccc.ddd.eee", "bazboo");
this.sources.add(source);
Map<String, ExampleEnum> result = this.binder
.bind("foo", Bindable.mapOf(String.class, ExampleEnum.class)).get();
assertThat(result).hasSize(3);
assertThat(result).containsEntry("aaa.bbb.ccc", ExampleEnum.FOO_BAR);
assertThat(result).containsEntry("bbb.ccc.ddd", ExampleEnum.BAR_BAZ);
assertThat(result).containsEntry("ccc.ddd.eee", ExampleEnum.BAZ_BOO);
}
@Test
public void bindToMapWithPlaceholdersShouldBeGreedyForScalars() throws Exception {
StandardEnvironment environment = new StandardEnvironment();
TestPropertySourceUtils.addInlinedPropertiesToEnvironment(environment, "foo=boo");
MockConfigurationPropertySource source = new MockConfigurationPropertySource(
"foo.aaa.bbb.ccc", "baz-${foo}");
this.sources.add(source);
this.binder = new Binder(this.sources,
new PropertySourcesPlaceholdersResolver(environment));
Map<String, ExampleEnum> result = this.binder
.bind("foo", Bindable.mapOf(String.class, ExampleEnum.class)).get();
assertThat(result).containsEntry("aaa.bbb.ccc", ExampleEnum.BAZ_BOO);
}
@Test
public void bindToMapWithNoPropertiesShouldReturnUnbound() throws Exception {
this.binder = new Binder(this.sources);
BindResult<Map<String, ExampleEnum>> result = this.binder.bind("foo",
Bindable.mapOf(String.class, ExampleEnum.class));
assertThat(result.isBound()).isFalse();
}
@Test
public void bindToMapShouldTriggerOnSuccess() throws Exception {
this.sources.add(new MockConfigurationPropertySource("foo.bar", "1", "line1"));
BindHandler handler = mock(BindHandler.class,
withSettings().defaultAnswer(Answers.CALLS_REAL_METHODS));
Bindable<Map<String, Integer>> target = STRING_INTEGER_MAP;
this.binder.bind("foo", target, handler);
InOrder inOrder = inOrder(handler);
inOrder.verify(handler).onSuccess(eq(ConfigurationPropertyName.of("foo.bar")),
eq(Bindable.of(Integer.class)), any(), eq(1));
inOrder.verify(handler).onSuccess(eq(ConfigurationPropertyName.of("foo")),
eq(target), any(), isA(Map.class));
}
@Test
public void bindToMapStringArrayShouldTriggerOnSuccess() throws Exception {
this.sources
.add(new MockConfigurationPropertySource("foo.bar", "a,b,c", "line1"));
BindHandler handler = mock(BindHandler.class,
withSettings().defaultAnswer(Answers.CALLS_REAL_METHODS));
Bindable<Map<String, String[]>> target = STRING_ARRAY_MAP;
this.binder.bind("foo", target, handler);
InOrder inOrder = inOrder(handler);
ArgumentCaptor<String[]> array = ArgumentCaptor.forClass(String[].class);
inOrder.verify(handler).onSuccess(eq(ConfigurationPropertyName.of("foo.bar")),
eq(Bindable.of(String[].class)), any(), array.capture());
assertThat(array.getValue()).containsExactly("a", "b", "c");
inOrder.verify(handler).onSuccess(eq(ConfigurationPropertyName.of("foo")),
eq(target), any(), isA(Map.class));
}
@Test
public void bindToPropertiesShouldBeEquivalentToMapOfStringString() throws Exception {
this.sources
.add(new MockConfigurationPropertySource("foo.bar.baz", "1", "line1"));
BindHandler handler = mock(BindHandler.class,
withSettings().defaultAnswer(Answers.CALLS_REAL_METHODS));
Bindable<Properties> target = Bindable.of(Properties.class);
this.binder.bind("foo", target, handler);
InOrder inOrder = inOrder(handler);
inOrder.verify(handler).onSuccess(eq(ConfigurationPropertyName.of("foo.bar.baz")),
eq(Bindable.of(String.class)), any(), eq("1"));
inOrder.verify(handler).onSuccess(eq(ConfigurationPropertyName.of("foo")),
eq(target), any(), isA(Properties.class));
}
}