From 60d5e070c17ef15caa42a847b0f9957432bd6468 Mon Sep 17 00:00:00 2001
From: Tristan Van Berkom <tristan.vanberkom@codethink.co.uk>
Date: Sat, 6 Jan 2018 18:39:05 +0900
Subject: tests/pipeline/preflight.py: Added test to ensure graceful exit at
 preflight error time

---
 tests/pipeline/preflight-error/error.bst           |  4 +++
 .../preflight-error/errorplugin/__init__.py        |  0
 .../preflight-error/errorplugin/preflighterror.py  | 35 ++++++++++++++++++++++
 tests/pipeline/preflight-error/project.conf        | 11 +++++++
 tests/pipeline/preflight.py                        | 19 ++++++++++++
 5 files changed, 69 insertions(+)
 create mode 100644 tests/pipeline/preflight-error/error.bst
 create mode 100644 tests/pipeline/preflight-error/errorplugin/__init__.py
 create mode 100644 tests/pipeline/preflight-error/errorplugin/preflighterror.py
 create mode 100644 tests/pipeline/preflight-error/project.conf
 create mode 100644 tests/pipeline/preflight.py

diff --git a/tests/pipeline/preflight-error/error.bst b/tests/pipeline/preflight-error/error.bst
new file mode 100644
index 000000000..a9772770c
--- /dev/null
+++ b/tests/pipeline/preflight-error/error.bst
@@ -0,0 +1,4 @@
+kind: import
+description: An element with a failing source at preflight time
+sources:
+- kind: preflighterror
diff --git a/tests/pipeline/preflight-error/errorplugin/__init__.py b/tests/pipeline/preflight-error/errorplugin/__init__.py
new file mode 100644
index 000000000..e69de29bb
diff --git a/tests/pipeline/preflight-error/errorplugin/preflighterror.py b/tests/pipeline/preflight-error/errorplugin/preflighterror.py
new file mode 100644
index 000000000..59c49e012
--- /dev/null
+++ b/tests/pipeline/preflight-error/errorplugin/preflighterror.py
@@ -0,0 +1,35 @@
+from buildstream import Source, SourceError, Consistency
+
+
+class PreflightErrorSource(Source):
+
+    def configure(self, node):
+        pass
+
+    def preflight(self):
+
+        # Raise a preflight error unconditionally
+        raise SourceError("{}: Unsatisfied requirements in preflight, raising this error",
+                          reason="the-preflight-error")
+
+    def get_unique_key(self):
+        return {}
+
+    def get_consistency(self):
+        return Consistency.CACHED
+
+    def get_ref(self):
+        return None
+
+    def set_ref(self, ref, node):
+        pass
+
+    def fetch(self):
+        pass
+
+    def stage(self, directory):
+        pass
+
+
+def setup():
+    return PreflightErrorSource
diff --git a/tests/pipeline/preflight-error/project.conf b/tests/pipeline/preflight-error/project.conf
new file mode 100644
index 000000000..20a234413
--- /dev/null
+++ b/tests/pipeline/preflight-error/project.conf
@@ -0,0 +1,11 @@
+# Basic project configuration that doesnt override anything
+#
+name: pony
+
+# Whitelist the local test Source "errorplugin" to be loaded
+#
+plugins:
+- origin: local
+  path: errorplugin
+  sources:
+    preflighterror: 0
diff --git a/tests/pipeline/preflight.py b/tests/pipeline/preflight.py
new file mode 100644
index 000000000..f9eb649ff
--- /dev/null
+++ b/tests/pipeline/preflight.py
@@ -0,0 +1,19 @@
+import os
+import pytest
+
+from buildstream._exceptions import ErrorDomain
+from tests.testutils.runcli import cli
+
+DATA_DIR = os.path.join(
+    os.path.dirname(os.path.realpath(__file__)),
+    'preflight-error',
+)
+
+
+@pytest.mark.datafiles(DATA_DIR)
+def test_load_simple(cli, datafiles, tmpdir):
+    basedir = os.path.join(datafiles.dirname, datafiles.basename)
+
+    # Lets try to fetch it...
+    result = cli.run(project=basedir, args=['fetch', 'error.bst'])
+    result.assert_main_error(ErrorDomain.PIPELINE, "the-preflight-error")
-- 
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