[stable-2.10] Support collection constraints in ansible-test. (#72157)

This allows collections to specify requirements and constraints for packages that ansible-test has requirements or constraints for.
(cherry picked from commit 5f76bd2)

Co-authored-by: Matt Clay <matt@mystile.com>

changelogs/fragments/ansible-test-collection-constraints.yml

@@ -0,0 +1,2 @@
+minor_changes:
+    - ansible-test - Collections can now specify pip constraints for unit and integration test requirements using ``tests/unit/constraints.txt`` and ``tests/integration/constraints.txt`` respectively.

test/integration/targets/ansible-test/ansible_collections/ns/col_constraints/tests/integration/constraints.txt

@@ -0,0 +1 @@
+botocore == 1.13.49

test/integration/targets/ansible-test/ansible_collections/ns/col_constraints/tests/integration/requirements.txt

@@ -0,0 +1 @@
+botocore

test/integration/targets/ansible-test/ansible_collections/ns/col_constraints/tests/integration/targets/constraints/tasks/main.yml

@@ -0,0 +1,7 @@
+- name: get botocore version
+  command: python -c "import botocore; print(botocore.__version__)"
+  register: botocore_version
+- name: check botocore version
+  assert:
+    that:
+      - 'botocore_version.stdout == "1.13.49"'

test/integration/targets/ansible-test/ansible_collections/ns/col_constraints/tests/unit/constraints.txt

@@ -0,0 +1 @@
+botocore == 1.13.50

test/integration/targets/ansible-test/ansible_collections/ns/col_constraints/tests/unit/plugins/modules/test_constraints.py

@@ -0,0 +1,8 @@
+from __future__ import absolute_import, division, print_function
+__metaclass__ = type
+
+import botocore
+
+
+def test_constraints():
+    assert botocore.__version__ == '1.13.50'

test/integration/targets/ansible-test/ansible_collections/ns/col_constraints/tests/unit/requirements.txt

@@ -0,0 +1 @@
+botocore

test/integration/targets/ansible-test/collection-tests/constraints.sh

@@ -0,0 +1,20 @@
+#!/usr/bin/env bash
+
+set -eux -o pipefail
+
+cp -a "${TEST_DIR}/ansible_collections" "${WORK_DIR}"
+cd "${WORK_DIR}/ansible_collections/ns/col_constraints"
+
+# common args for all tests
+# each test will be run in a separate venv to verify that requirements have been properly specified
+common=(--venv --python "${ANSIBLE_TEST_PYTHON_VERSION}" --color --truncate 0 "${@}")
+
+# unit tests
+
+rm -rf "tests/output"
+ansible-test units "${common[@]}"
+
+# integration tests
+
+rm -rf "tests/output"
+ansible-test integration "${common[@]}"

test/lib/ansible_test/_internal/executor.py

@@ -430,6 +430,7 @@ def generate_pip_install(pip, command, packages=None, constraints=None, use_cons
     """
     constraints = constraints or os.path.join(ANSIBLE_TEST_DATA_ROOT, 'requirements', 'constraints.txt')
     requirements = os.path.join(ANSIBLE_TEST_DATA_ROOT, 'requirements', '%s.txt' % ('%s.%s' % (command, context) if context else command))
+    content_constraints = None
 
     options = []
 
@@ -448,6 +449,8 @@ def generate_pip_install(pip, command, packages=None, constraints=None, use_cons
         if os.path.exists(requirements) and os.path.getsize(requirements):
             options += ['-r', requirements]
 
+        content_constraints = os.path.join(data_context().content.unit_path, 'constraints.txt')
+
     if command in ('integration', 'windows-integration', 'network-integration'):
         requirements = os.path.join(data_context().content.integration_path, 'requirements.txt')
 
@@ -459,13 +462,22 @@ def generate_pip_install(pip, command, packages=None, constraints=None, use_cons
         if os.path.exists(requirements) and os.path.getsize(requirements):
             options += ['-r', requirements]
 
+        content_constraints = os.path.join(data_context().content.integration_path, 'constraints.txt')
+
+    if command.startswith('integration.cloud.'):
+        content_constraints = os.path.join(data_context().content.integration_path, 'constraints.txt')
+
     if packages:
         options += packages
 
     if not options:
         return None
 
     if use_constraints:
+        if content_constraints and os.path.exists(content_constraints) and os.path.getsize(content_constraints):
+            # listing content constraints first gives them priority over constraints provided by ansible-test
+            options.extend(['-c', content_constraints])
+
         options.extend(['-c', constraints])
 
     return pip + ['install', '--disable-pip-version-check'] + options