Handle nodesets in branches

This allows a nodeset to appear on multiple branches of a project.

See Ia9d5b77d1ce46e6461b370e951301ede4045bbb9 for more information.

Change-Id: If7ca83e8ec3cad8f9bd99a65b974d56a999f256c
diff --git a/tests/fixtures/config/nodesets/git/common-config/playbooks/base.yaml b/tests/fixtures/config/nodesets/git/common-config/playbooks/base.yaml
new file mode 100644
index 0000000..f679dce
--- /dev/null
+++ b/tests/fixtures/config/nodesets/git/common-config/playbooks/base.yaml
@@ -0,0 +1,2 @@
+- hosts: all
+  tasks: []
diff --git a/tests/fixtures/config/nodesets/git/common-config/zuul.yaml b/tests/fixtures/config/nodesets/git/common-config/zuul.yaml
new file mode 100644
index 0000000..e1e2fb7
--- /dev/null
+++ b/tests/fixtures/config/nodesets/git/common-config/zuul.yaml
@@ -0,0 +1,39 @@
+- pipeline:
+    name: check
+    manager: independent
+    post-review: true
+    trigger:
+      gerrit:
+        - event: patchset-created
+    success:
+      gerrit:
+        Verified: 1
+    failure:
+      gerrit:
+        Verified: -1
+
+- pipeline:
+    name: gate
+    manager: dependent
+    success-message: Build succeeded (gate).
+    trigger:
+      gerrit:
+        - event: comment-added
+          approval:
+            - Approved: 1
+    success:
+      gerrit:
+        Verified: 2
+        submit: true
+    failure:
+      gerrit:
+        Verified: -2
+    start:
+      gerrit:
+        Verified: 0
+    precedence: high
+
+- job:
+    name: base
+    parent: null
+    run: playbooks/base.yaml
diff --git a/tests/fixtures/config/nodesets/git/org_project1/README b/tests/fixtures/config/nodesets/git/org_project1/README
new file mode 100644
index 0000000..9daeafb
--- /dev/null
+++ b/tests/fixtures/config/nodesets/git/org_project1/README
@@ -0,0 +1 @@
+test
diff --git a/tests/fixtures/config/nodesets/git/org_project1/zuul.yaml b/tests/fixtures/config/nodesets/git/org_project1/zuul.yaml
new file mode 100644
index 0000000..398269e
--- /dev/null
+++ b/tests/fixtures/config/nodesets/git/org_project1/zuul.yaml
@@ -0,0 +1,15 @@
+- nodeset:
+    name: project1-nodeset
+    nodes:
+      - name: controller
+        label: ubuntu-xenial
+
+- job:
+    parent: base
+    name: project1-test
+    nodeset: project1-nodeset
+
+- project:
+    check:
+      jobs:
+        - project1-test
diff --git a/tests/fixtures/config/nodesets/git/org_project2/README b/tests/fixtures/config/nodesets/git/org_project2/README
new file mode 100644
index 0000000..9daeafb
--- /dev/null
+++ b/tests/fixtures/config/nodesets/git/org_project2/README
@@ -0,0 +1 @@
+test
diff --git a/tests/fixtures/config/nodesets/git/org_project2/zuul-nodeset.yaml b/tests/fixtures/config/nodesets/git/org_project2/zuul-nodeset.yaml
new file mode 100644
index 0000000..cb969a7
--- /dev/null
+++ b/tests/fixtures/config/nodesets/git/org_project2/zuul-nodeset.yaml
@@ -0,0 +1,18 @@
+- nodeset:
+    name: project2-nodeset
+    nodes:
+      name: controller
+      label: ubuntu-xenial
+
+- job:
+    parent: base
+    name: project2-test
+    nodeset: project2-nodeset
+
+- project:
+    check:
+      jobs:
+        - project2-test
+    gate:
+      jobs:
+        - noop
diff --git a/tests/fixtures/config/nodesets/git/org_project2/zuul.yaml b/tests/fixtures/config/nodesets/git/org_project2/zuul.yaml
new file mode 100644
index 0000000..a4b42b1
--- /dev/null
+++ b/tests/fixtures/config/nodesets/git/org_project2/zuul.yaml
@@ -0,0 +1,11 @@
+- job:
+    parent: base
+    name: project2-test
+
+- project:
+    check:
+      jobs:
+        - project2-test
+    gate:
+      jobs:
+        - noop
diff --git a/tests/fixtures/config/nodesets/main.yaml b/tests/fixtures/config/nodesets/main.yaml
new file mode 100644
index 0000000..950b117
--- /dev/null
+++ b/tests/fixtures/config/nodesets/main.yaml
@@ -0,0 +1,9 @@
+- tenant:
+    name: tenant-one
+    source:
+      gerrit:
+        config-projects:
+          - common-config
+        untrusted-projects:
+          - org/project1
+          - org/project2