fix(aws-codebuild): correctly set S3 path when using it as artifact. (#1072)

Author: skinny85

packages/@aws-cdk/aws-codebuild/lib/artifacts.ts

@@ -72,7 +72,7 @@ export class S3BucketBuildArtifacts extends BuildArtifacts {
     return {
       type: 'S3',
       location: this.props.bucket.bucketName,
-      path: this.props.bucket.path,
+      path: this.props.path,
       namespaceType: this.parseNamespaceType(this.props.includeBuildID),
       name: this.props.name,
       packaging: this.parsePackaging(this.props.packageZip),

packages/@aws-cdk/aws-codebuild/test/test.codebuild.ts

@@ -466,6 +466,28 @@ export = {
     }
   },
 
+  'using path in S3 artifacts sets it correctly'(test: Test) {
+    const stack = new cdk.Stack();
+    const bucket = new s3.Bucket(stack, 'Bucket');
+    new codebuild.Project(stack, 'Project', {
+      artifacts: new codebuild.S3BucketBuildArtifacts({
+        path: 'some/path',
+        name: 'some_name',
+        bucket,
+      }),
+    });
+
+    expect(stack).to(haveResource('AWS::CodeBuild::Project', {
+      "Artifacts": {
+        "Path": "some/path",
+        "Name": "some_name",
+        "Type": "S3",
+      },
+    }));
+
+    test.done();
+  },
+
   'artifacts': {
     'CodePipeline': {
       'both source and artifacs are set to CodePipeline'(test: Test) {