Test that helpful messages are raised when missing dependencies

This adds a `reason` to the SandboxEror thrown in sandboxdummy
to be able to understand where the error comes from

4 files changed, 95 insertions, 0 deletions

diff --git a/tests/sandboxes/missing-dependencies/elements/base.bst b/tests/sandboxes/missing-dependencies/elements/base.bst
new file mode 100755
index 000000000..dcd6a9d60
--- /dev/null
+++ b/tests/sandboxes/missing-dependencies/elements/base.bst
@@ -0,0 +1,4 @@
+kind: import
+sources:
+- kind: local
+  path: files/base/
diff --git a/tests/sandboxes/missing-dependencies/files/base/bin/sh b/tests/sandboxes/missing-dependencies/files/base/bin/sh
new file mode 100755
index 000000000..c102e04c1
--- /dev/null
+++ b/tests/sandboxes/missing-dependencies/files/base/bin/sh
@@ -0,0 +1 @@
+# This is the original bash
diff --git a/tests/sandboxes/missing-dependencies/project.conf b/tests/sandboxes/missing-dependencies/project.conf
new file mode 100755
index 000000000..080ab758f
--- /dev/null
+++ b/tests/sandboxes/missing-dependencies/project.conf
@@ -0,0 +1,4 @@
+# Project config for missing dependencies test
+name: test
+
+element-path: elements
diff --git a/tests/sandboxes/missing_dependencies.py b/tests/sandboxes/missing_dependencies.py
new file mode 100644
index 000000000..d77674c64
--- /dev/null
+++ b/tests/sandboxes/missing_dependencies.py
@@ -0,0 +1,86 @@
+import os
+import pytest
+from tests.testutils import cli
+from tests.testutils.site import IS_LINUX
+
+from buildstream import _yaml
+from buildstream._exceptions import ErrorDomain
+
+
+# Project directory
+DATA_DIR = os.path.join(
+    os.path.dirname(os.path.realpath(__file__)),
+    "missing-dependencies",
+)
+
+
+@pytest.mark.skipif(not IS_LINUX, reason='Only available on Linux')
+@pytest.mark.datafiles(DATA_DIR)
+def test_missing_brwap_has_nice_error_message(cli, datafiles):
+    project = os.path.join(datafiles.dirname, datafiles.basename)
+    element_path = os.path.join(project, 'elements', 'element.bst')
+
+    # Write out our test target
+    element = {
+        'kind': 'script',
+        'depends': [
+            {
+                'filename': 'base.bst',
+                'type': 'build',
+            },
+        ],
+        'config': {
+            'commands': [
+                'false',
+            ],
+        },
+    }
+    _yaml.dump(element, element_path)
+
+    # Build without access to host tools, this should fail with a nice error
+    result = cli.run(
+        project=project, args=['build', 'element.bst'], env={'PATH': ''})
+    result.assert_task_error(ErrorDomain.SANDBOX, 'unavailable-local-sandbox')
+    assert "not found" in result.stderr
+
+
+@pytest.mark.skipif(not IS_LINUX, reason='Only available on Linux')
+@pytest.mark.datafiles(DATA_DIR)
+def test_old_brwap_has_nice_error_message(cli, datafiles, tmp_path):
+    bwrap = tmp_path.joinpath('bin/bwrap')
+    bwrap.parent.mkdir()
+    with bwrap.open('w') as fp:
+        fp.write('''
+            #!/bin/sh
+            echo bubblewrap 0.0.1
+        '''.strip())
+
+    bwrap.chmod(0o755)
+
+    project = os.path.join(datafiles.dirname, datafiles.basename)
+    element_path = os.path.join(project, 'elements', 'element3.bst')
+
+    # Write out our test target
+    element = {
+        'kind': 'script',
+        'depends': [
+            {
+                'filename': 'base.bst',
+                'type': 'build',
+            },
+        ],
+        'config': {
+            'commands': [
+                'false',
+            ],
+        },
+    }
+    _yaml.dump(element, element_path)
+
+    # Build without access to host tools, this should fail with a nice error
+    result = cli.run(
+        project=project,
+        args=['--debug', '--verbose', 'build', 'element3.bst'],
+        env={'PATH': str(tmp_path.joinpath('bin'))})
+    result.assert_task_error(ErrorDomain.SANDBOX, 'unavailable-local-sandbox')
+    assert "too old" in result.stderr