Synchronize the build scripts/config/docs with apache-airflow repo

README.md

diff --git a/README.md b/README.md
index 6ac3d23..dc8fd40 100644
--- a/README.md
+++ b/README.md
@@ -571,6 +571,14 @@
 )
 ```
 
+* Run scheduler (or dag file processor you have setup with standalone dag file processor) for few parsing
+  loops (you can pass --num-runs parameter to it or keep it running in the background). The script relies
+  on example DAGs being serialized to the DB and this only
+  happens when scheduler runs with ``core/load_examples`` set to True.
+
+* Run webserver - reachable at the host/port for the test script you want to run. Make sure it had enough
+  time to initialize.
+
 Run `python test_python_client.py` and you should see colored output showing attempts to connect and status.
 
 

pyproject.toml

diff --git a/pyproject.toml b/pyproject.toml
index a8a0e5b..59022ef 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -65,12 +65,11 @@
 [tool.hatch.envs.test]
 dependencies = [
     "pytest-cov>=2.8.1",
-    "python_dateutil >= 2.5.3",
     "urllib3 >= 1.25.3",
 ]
 
 [tool.hatch.envs.test.scripts]
-run-coverage = "pytest --cov-config=pyproject.toml --cov=airflow_client test --color=yes"
+run-coverage = "pytest test"
 run = "run-coverage --no-cov"
 
 [[tool.hatch.envs.test.matrix]]
@@ -103,3 +102,18 @@
 include = [
     "/airflow_client",
 ]
+
+[tool.pytest.ini_options]
+# make sure that pytest.ini is not read from pyproject.toml in paraent directories
+addopts = "--color=yes --cov-config=pyproject.toml --cov=airflow_client"
+norecursedirs = [
+]
+log_level = "INFO"
+filterwarnings = [
+]
+python_files = [
+    "test_*.py",
+]
+testpaths = [
+    "test",
+]

test_python_client.py

diff --git a/test_python_client.py b/test_python_client.py
index ea0f42d..d36f6d1 100644
--- a/test_python_client.py
+++ b/test_python_client.py
@@ -26,6 +26,7 @@
 
 from __future__ import annotations
 
+import sys
 import uuid
 
 import airflow_client.client
@@ -124,5 +125,6 @@
 
     if errors:
         print("\n[red]There were errors while running the script - see above for details")
+        sys.exit(1)
     else:
         print("\n[green]Everything went well")