In this commit, we add e2e tests for the `karmadactl apply`
command to ensure it handles various scenarios correctly.
The tests include:
- Applying configurations without propagating them into member clusters.
- Applying configurations with propagation into specific member clusters.
- Applying configurations and propagating them to all member clusters.
- Verifying that no resources were created during `--dry-run` mode.
- Ensuring the command returns an error for an invalid flag.
- Ensuring the command returns an error when the specified file does not exist.
- Applying configurations with the `--namespace` flag to ensure resources are created in the specified namespace.
- Applying configurations with the `--force-conflicts` flag to ensure conflicts are forcefully resolved during server-side apply.
- Applying configurations using the `--kustomize` flag to process a kustomization directory.
Signed-off-by: Mohamed Awnallah <mohamedmohey2352@gmail.com>
Co-authored-by: zhzhuang-zju <m17799853869@163.com>
Co-authored-by: Chang <changzhen5@huawei.com>
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