Add more test cases and readme contents

Signed-off-by: Peter Zhu <[email protected]>

Author: peterzhuamazon

src/build_workflow/README.md

@@ -65,7 +65,10 @@ The following options are available in `build.sh`.
 
 | name               | description                                                             |
 |--------------------|-------------------------------------------------------------------------|
-| --snapshot         | Build a snapshot instead of a release artifact, default is `false`.     |
+| -s, --snapshot     | Build a snapshot instead of a release artifact, default is `false`.     |
+| -a, --architecture | Specify architecture to build, default is architecture of build system. |
+| -d, --distribution | Specify distribution to build, default is `tar`.                        |
+| -p, --platform     | Specify platform to build, default is platform of build system.         |
 | --component [name] | Rebuild a single component by name, e.g. `--component common-utils`.    |
 | --keep             | Do not delete the temporary working directory on both success or error. |
 | -l, --lock         | Generate a stable reference manifest.                                   |

tests/tests_build_workflow/test_build_target.py

@@ -25,6 +25,9 @@ def test_build_id_from_env(self) -> None:
     def test_build_id_from_arg(self) -> None:
         self.assertEqual(BuildTarget(version="1.1.0", architecture="x86", build_id="id").build_id, "id")
 
+    def test_distribution_from_arg(self) -> None:
+        self.assertEqual(BuildTarget(version="1.3.0", architecture="x86", distribution="rpm").distribution, "rpm")
+
     def test_opensearch_version(self) -> None:
         self.assertEqual(
             BuildTarget(version="1.1.0", architecture="x86", snapshot=False).opensearch_version,