test: add regression test for cyclic Jenkins jobs

Author: jkloetzke

test/jenkinsSandboxInvariant/config.yaml

@@ -0,0 +1 @@
+bobMinimumVersion: "0.19"

test/jenkinsSandboxInvariant/recipes/prog.yaml

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+packageScript: |
+    true

test/jenkinsSandboxInvariant/recipes/root.yaml

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+root: True
+
+depends:
+    - name: sandbox
+      use: [sandbox]
+      forward: True
+    - prog
+
+buildScript: |
+    true
+packageScript: |
+    true

test/jenkinsSandboxInvariant/recipes/sandbox.yaml

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+depends:
+    - prog
+
+buildScript: |
+    true
+packageScript: |
+    true
+
+provideSandbox:
+    paths: []

test/jenkinsSandboxInvariant/run.sh

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+#!/bin/bash -e
+. ../test-lib.sh 2>/dev/null || { echo "Must run in script directory!" ; exit 1 ; }
+
+# Regression test for #438 to see if jenkins jobs can still be generated even
+# if identical package (prog) is built inside and outside of sandbox in same
+# project.
+
+cleanup
+
+exp="$(mktemp -d)"
+trap 'rm -rf "$exp"' EXIT
+
+run_bob jenkins add local http://example.test/ -r root
+run_bob jenkins export local "$exp"