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test_generate_dockerfiles.py
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test_generate_dockerfiles.py
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# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# https://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
import unittest
from unittest.mock import Mock, mock_open, patch
from jinja2 import Environment, FileSystemLoader
class TestJinjaRendering(unittest.TestCase):
def setUp(self):
# Setup the Jinja2 environment
self.env = Environment(loader=FileSystemLoader("docker_templates"))
def test_armhf_ubuntu8_rendering(self):
template_name = "ubuntu.Dockerfile.j2"
template = self.env.get_template(template_name)
arch_data = {}
arch_data["armhf"] = {
"download_url": "http://fake-url.com",
"checksum": "fake-checksum",
}
# The context/variables to render the template
context = {
"architecture": "armhf",
"os": "ubuntu",
"version": "8",
"arch_data": arch_data,
}
rendered_template = template.render(**context)
# Expected string/partial in the rendered output
expected_string = "# Fixes libatomic.so.1: cannot open shared object file"
self.assertIn(expected_string, rendered_template)
def test_version_checker(self):
template_name = "partials/version-check.j2"
template = self.env.get_template(template_name)
with self.subTest():
# The context/variables to render the template
context = {"version": "11", "image_type": "jdk"}
rendered_template = template.render(**context)
# Expected string/partial in the rendered output
self.assertIn("javac --version", rendered_template)
self.assertIn("java --version", rendered_template)
with self.subTest():
# The context/variables to render the template
context = {"version": "8", "image_type": "jdk"}
rendered_template = template.render(**context)
# Expected string/partial in the rendered output
self.assertIn("javac -version", rendered_template)
self.assertIn("java -version", rendered_template)
with self.subTest():
# The context/variables to render the template
context = {"version": "11", "image_type": "jre"}
rendered_template = template.render(**context)
# Expected string/partial in the rendered output
self.assertNotIn("javac --version", rendered_template)
self.assertIn("java --version", rendered_template)
with self.subTest():
# The context/variables to render the template
context = {"version": "8", "image_type": "jre"}
rendered_template = template.render(**context)
# Expected string/partial in the rendered output
self.assertNotIn("javac -version", rendered_template)
self.assertIn("java -version", rendered_template)
def test_version_checker_windows(self):
template_name = "partials/version-check-windows.j2"
template = self.env.get_template(template_name)
with self.subTest():
# The context/variables to render the template
context = {"version": "11", "image_type": "jdk"}
rendered_template = template.render(**context)
# Expected string/partial in the rendered output
expected_string = "Write-Host 'javac --version'; javac --version;"
self.assertIn(expected_string, rendered_template)
with self.subTest():
# The context/variables to render the template
context = {"version": "8", "image_type": "jdk"}
rendered_template = template.render(**context)
# Expected string/partial in the rendered output
expected_string = "Write-Host 'javac -version'; javac -version;"
self.assertIn(expected_string, rendered_template)
with self.subTest():
# The context/variables to render the template
context = {"version": "11", "image_type": "jre"}
rendered_template = template.render(**context)
# Expected string/partial in the rendered output
expected_string = "Write-Host 'javac --version'; javac --version;"
self.assertNotIn(expected_string, rendered_template)
with self.subTest():
# The context/variables to render the template
context = {"version": "8", "image_type": "jre"}
rendered_template = template.render(**context)
# Expected string/partial in the rendered output
expected_string = "Write-Host 'javac -version'; javac -version;"
self.assertNotIn(expected_string, rendered_template)
def test_jdk11plus_jshell_cmd(self):
template_name = "partials/jshell.j2"
template = self.env.get_template(template_name)
with self.subTest():
# The context/variables to render the template
context = {"version": "11", "image_type": "jdk"}
rendered_template = template.render(**context)
# Expected string/partial in the rendered output
expected_string = 'CMD ["jshell"]'
self.assertIn(expected_string, rendered_template)
with self.subTest():
# The context/variables to render the template
context = {"version": "17", "image_type": "jre"}
rendered_template = template.render(**context)
# Expected string/partial in the rendered output
expected_string = 'CMD ["jshell"]'
self.assertNotIn(expected_string, rendered_template)
with self.subTest():
# The context/variables to render the template
context = {"version": "8", "image_type": "jdk"}
rendered_template = template.render(**context)
# Expected string/partial in the rendered output
expected_string = 'CMD ["jshell"]'
self.assertNotIn(expected_string, rendered_template)
def test_binutils_inclusion(self):
template_name = "ubuntu.Dockerfile.j2"
template = self.env.get_template(template_name)
# Binutils should be included for jdk images with version >= 13
with self.subTest("jdk 13+ should include binutils"):
context = {
"version": 13,
"image_type": "jdk",
"os": "ubuntu",
"arch_data": {},
}
rendered_template = template.render(**context)
self.assertIn("binutils", rendered_template)
# Binutils should not be included for jre images regardless of version
with self.subTest("jre 13+ should not include binutils"):
context = {
"version": 13,
"image_type": "jre",
"os": "ubuntu",
"arch_data": {},
}
rendered_template = template.render(**context)
self.assertNotIn("binutils", rendered_template)
# Binutils should not be included for jdk images with version < 13
with self.subTest("jdk < 13 should not include binutils"):
context = {
"version": 12,
"image_type": "jdk",
"os": "ubuntu",
"arch_data": {},
}
rendered_template = template.render(**context)
self.assertNotIn("binutils", rendered_template)
def test_arch_data_population(self):
template_name = "ubuntu.Dockerfile.j2"
template = self.env.get_template(template_name)
# Simulate API response
arch_data = {
"amd64": {
"download_url": "http://fake-url.com",
"checksum": "fake-checksum",
}
}
context = {
"version": 11,
"image_type": "jdk",
"os": "ubuntu",
"arch_data": arch_data,
}
rendered_template = template.render(**context)
self.assertIn("http://fake-url.com", rendered_template)
self.assertIn("fake-checksum", rendered_template)
def test_entrypoint_rendering(self):
template_name = "entrypoint.sh.j2"
template = self.env.get_template(template_name)
context = {
"image_type": "jdk",
"os": "ubuntu",
"version": 11,
}
rendered_template = template.render(**context)
# Ensure that the entrypoint script contains expected commands
self.assertIn("update-ca-certificates", rendered_template)
self.assertIn("exec \"$@\"", rendered_template)
if __name__ == "__main__":
unittest.main()