}
        """
        file('src/main/java/Text.java') << '''import org.apache.commons.lang3.StringUtils;
            public class Text {
                public static String sayHello(String name) { return "Hello, " + StringUtils.capitalize(name); }
            }
        '''
        file('src/test/java/TextTest.java') << '''
            import org.junit.Test;

        when:
        file("greeter/src/main/swift/greeter.swift").replace("sayHello", "sayAloha")
        then:
        fails ":app:compileDebugSwift"
        failure.assertHasErrorOutput("value of type 'Greeter' has no member 'sayHello'")

        when:
        file("app/src/main/swift/main.swift").replace("sayHello", "sayAloha")
        then:
        succeeds ":app:assemble"