doc for exposing service info for nested configuration improved

README.md

@@ -137,6 +137,13 @@ dockerCompose {
 * It's possible to use all the settings as in the main `dockerCompose` block.
 * Configuration of the nested settings defaults to the main `dockerCompose` settings.
 
+When exposing service info from `myNestedComposeUp` task into your task you should use following syntax:
+```
+test.doFirst {
+    dockerCompose.myNested.exposeAsEnvironment(test)  
+}
+```
+
 It's also possible to use this simplified syntax:
 ```gradle
 dockerCompose {

src/test/groovy/com/avast/gradle/dockercompose/DockerExecutorTest.groovy

@@ -1,6 +1,5 @@
 package com.avast.gradle.dockercompose
 
-import spock.lang.Ignore
 import spock.lang.Specification
 
 class DockerExecutorTest extends Specification {
@@ -41,4 +40,21 @@ class DockerExecutorTest extends Specification {
         f.project.tasks.composeDown.down()
         f.close()
     }
+
+    def "expose service info from nested task"() {
+        def f = Fixture.withNginx()
+        f.project.plugins.apply 'java'
+        f.project.dockerCompose {
+            nested { }
+        }
+        when:
+        f.project.tasks.nestedComposeUp.up()
+        f.extension.nested.exposeAsSystemProperties(f.project.tasks.test)
+        then:
+        f.project.tasks.test.properties.systemProperties.containsKey('web.host')
+        f.project.tasks.test.properties.systemProperties.containsKey('web.tcp.80')
+        cleanup:
+        f.project.tasks.nestedComposeDown.down()
+        f.close()
+    }
 }