Fix typo

spring-boot/src/test/java/org/springframework/boot/context/properties/source/ConfigurationPropertySourcesTests.java

@@ -202,7 +202,7 @@ public class ConfigurationPropertySourcesTests {
 	}
 
 	@Test
-	public void environmentProperyExpansionShouldWorkWhenAttached() throws Exception {
+	public void environmentPropertyExpansionShouldWorkWhenAttached() throws Exception {
 		StandardEnvironment environment = new StandardEnvironment();
 		Map<String, Object> source = new LinkedHashMap<>();
 		source.put("fooBar", "Spring ${barBaz} ${bar-baz}");

spring-boot/src/test/java/org/springframework/boot/context/properties/source/PropertySourceIterableConfigurationPropertySourceTests.java

@@ -69,9 +69,9 @@ public class PropertySourceIterableConfigurationPropertySourceTests {
 		EnumerablePropertySource<?> propertySource = new MapPropertySource("test",
 				source);
 		TestPropertyMapper mapper = new TestPropertyMapper();
-		mapper.addFromProperySource("key1", "my.key1");
-		mapper.addFromProperySource("key2", "my.key2a", "my.key2b");
-		mapper.addFromProperySource("key4", "my.key4");
+		mapper.addFromPropertySource("key1", "my.key1");
+		mapper.addFromPropertySource("key2", "my.key2a", "my.key2b");
+		mapper.addFromPropertySource("key4", "my.key4");
 		PropertySourceIterableConfigurationPropertySource adapter = new PropertySourceIterableConfigurationPropertySource(
 				propertySource, mapper);
 		assertThat(adapter.iterator()).extracting(Object::toString)
@@ -103,8 +103,8 @@ public class PropertySourceIterableConfigurationPropertySourceTests {
 		EnumerablePropertySource<?> propertySource = new MapPropertySource("test",
 				source);
 		TestPropertyMapper mapper = new TestPropertyMapper();
-		mapper.addFromProperySource("key1", "my.missing");
-		mapper.addFromProperySource("key2", "my.k-e-y");
+		mapper.addFromPropertySource("key1", "my.missing");
+		mapper.addFromPropertySource("key2", "my.k-e-y");
 		PropertySourceIterableConfigurationPropertySource adapter = new PropertySourceIterableConfigurationPropertySource(
 				propertySource, mapper);
 		ConfigurationPropertyName name = ConfigurationPropertyName.of("my.key");

spring-boot/src/test/java/org/springframework/boot/context/properties/source/TestPropertyMapper.java

@@ -33,7 +33,7 @@ class TestPropertyMapper implements PropertyMapper {
 
 	private MultiValueMap<ConfigurationPropertyName, PropertyMapping> fromConfig = new LinkedMultiValueMap<>();
 
-	public void addFromProperySource(String from, String... to) {
+	public void addFromPropertySource(String from, String... to) {
 		for (String configurationPropertyName : to) {
 			this.fromSource.add(from, new PropertyMapping(from,
 					ConfigurationPropertyName.of(configurationPropertyName)));