prepare plugins needs to happen so registration can occur to build the plugin args (#2119)

* prepare plugins needs to happen so registration can occur to build the plugin args

use yaml.dump

include dataset and more assertions

* attempt to manually register plugins rather than use fn

* fix fixture

* remove fixture

* move cli test to patched dir

* fix cce validation

tests/e2e/patched/test_cli_integrations.py

@@ -0,0 +1,47 @@
+"""
+test cases to make sure the plugin args are loaded from the config file
+"""
+from pathlib import Path
+
+import yaml
+
+from axolotl.cli import load_cfg
+from axolotl.utils.dict import DictDefault
+
+
+# pylint: disable=duplicate-code
+class TestPluginArgs:
+    """
+    test class for plugin args loaded from the config file
+    """
+
+    def test_liger_plugin_args(self, temp_dir):
+        test_cfg = DictDefault(
+            {
+                "base_model": "HuggingFaceTB/SmolLM2-135M",
+                "learning_rate": 0.000001,
+                "micro_batch_size": 1,
+                "gradient_accumulation_steps": 1,
+                "datasets": [
+                    {
+                        "path": "mhenrichsen/alpaca_2k_test",
+                        "type": "alpaca",
+                    },
+                ],
+                "plugins": ["axolotl.integrations.liger.LigerPlugin"],
+                "liger_layer_norm": True,
+                "liger_rope": True,
+                "liger_rms_norm": False,
+                "liger_glu_activation": True,
+                "liger_fused_linear_cross_entropy": True,
+            }
+        )
+
+        with open(Path(temp_dir) / "config.yaml", "w", encoding="utf-8") as fout:
+            fout.write(yaml.dump(test_cfg.to_dict()))
+        cfg = load_cfg(str(Path(temp_dir) / "config.yaml"))
+        assert cfg.liger_layer_norm is True
+        assert cfg.liger_rope is True
+        assert cfg.liger_rms_norm is False
+        assert cfg.liger_glu_activation is True
+        assert cfg.liger_fused_linear_cross_entropy is True