Add failing transitive exlcude test.

sbt/src/sbt-test/dependency-management/transitive-excludes/build.sbt

@@ -0,0 +1,28 @@
+
+
+resolvers += {
+  val f = baseDirectory.value / "repository"
+  "local-test-repo" at f.getCanonicalFile.toURI.toASCIIString
+}
+libraryDependencies += "exclude.test" % "app" % "1.0.0"
+
+val checkDependencies = taskKey[Unit]("Checks that dependcies are correct.")
+
+checkDependencies := {
+  val hasBadJar = (fullClasspath in Compile).value.exists { jar => jar.data.getName contains "bottom-1.0.0.jar"}
+  val errorJarString = (fullClasspath in Compile).value.map(_.data.getName).mkString(" * ", "\n * ", "")
+  assert(!hasBadJar, s"Failed to exclude transitive excluded dependency on classpath!\nFound:\n$errorJarString")
+  val modules =
+    (for {
+      c <- update.value.configurations
+      m <- c.modules
+      if !m.evicted
+    } yield m.module).distinct
+  val hasBadDep =
+    modules exists { m =>
+      (m.organization == "exclude.test") && (m.name == "bottom")
+    }
+  val errModuleString = modules.mkString("\n * ", "\n * ", "")
+  assert(!hasBadDep, s"Failed to exclude transitive excluded dependency!\nFound:\n$errModuleString")
+
+}

sbt/src/sbt-test/dependency-management/transitive-excludes/repository/exclude/test/app/1.0.0/app-1.0.0.pom

@@ -0,0 +1,17 @@
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <groupId>exclude.test</groupId>
+    <artifactId>app</artifactId>
+    <packaging>jar</packaging>
+    <version>1.0.0</version>
+    <name>app</name>
+    <url>http://maven.apache.org</url>
+    <dependencies>
+        <dependency>
+            <groupId>exclude.test</groupId>
+            <artifactId>top</artifactId>
+            <version>1.0.0</version>
+        </dependency>
+    </dependencies>
+</project>

sbt/src/sbt-test/dependency-management/transitive-excludes/repository/exclude/test/bottom/1.0.0/bottom-1.0.0.pom

@@ -0,0 +1,12 @@
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <groupId>exclude.test</groupId>
+    <artifactId>bottom</artifactId>
+    <packaging>jar</packaging>
+    <version>1.0.0</version>
+    <name>bottom</name>
+    <url>http://maven.apache.org</url>
+    <dependencies>
+    </dependencies>
+</project>

sbt/src/sbt-test/dependency-management/transitive-excludes/repository/exclude/test/middle/1.0.0/middle-1.0.0.pom

@@ -0,0 +1,17 @@
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <groupId>exclude.test</groupId>
+    <artifactId>middle</artifactId>
+    <packaging>jar</packaging>
+    <version>1.0.0</version>
+    <name>middle</name>
+    <url>http://maven.apache.org</url>
+    <dependencies>
+        <dependency>
+            <groupId>exclude.test</groupId>
+            <artifactId>bottom</artifactId>
+            <version>1.0.0</version>
+        </dependency>
+    </dependencies>
+</project>

sbt/src/sbt-test/dependency-management/transitive-excludes/repository/exclude/test/top/1.0.0/top-1.0.0.pom

@@ -0,0 +1,23 @@
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <groupId>exclude.test</groupId>
+    <artifactId>top</artifactId>
+    <packaging>jar</packaging>
+    <version>1.0.0</version>
+    <name>top</name>
+    <url>http://maven.apache.org</url>
+    <dependencies>
+        <dependency>
+            <groupId>exclude.test</groupId>
+            <artifactId>middle</artifactId>
+            <version>1.0.0</version>
+            <exclusions>
+                <exclusion>
+                    <groupId>exclude.test</groupId>
+                    <artifactId>middle</artifactId>
+                </exclusion>
+            </exclusions>
+        </dependency>
+    </dependencies>
+</project>

sbt/src/sbt-test/dependency-management/transitive-excludes/test

@@ -0,0 +1 @@
+> checkDependencies