[MAINTAINCE] read config file instead using datacontext (#74)

* feat: read config file

functions/data_test/profiling.py

@@ -8,12 +8,11 @@
 from Expectation_report_new import ExpectationsReportNew
 from pandas_profiling.expectations_report import ExpectationsReport
 from datetime import datetime
-from great_expectations import DataContext
 from great_expectations.data_context import BaseDataContext
 from great_expectations.data_context.types.base import (DataContextConfig,
                                                         S3StoreBackendDefaults)
 import yaml
-
+DEFAULT_CONFIG_FILE_PATH = "great_expectations/great_expectations.yml"
 
 if os.environ['ENVIRONMENT'] == 'local':
     endpoint_url = f"http://{os.environ['S3_HOST']}:{os.environ['S3_PORT']}"
@@ -66,11 +65,7 @@ def __init__(self, typeset, *args, **kwargs):
 
 
 def change_ge_config(datasource_root):
-    context_ge = DataContext()
-
-    configfile_raw = context_ge.get_config().to_yaml_str()
-    configfile = yaml.safe_load(configfile_raw)
-
+    configfile = read_gx_config_file()
     datasources = {
         "pandas_s3": {
             "class_name": "PandasDatasource",
@@ -151,7 +146,15 @@ def remove_suffix(input_string, suffix):
     return input_string
 
 
-def profile_data(df, suite_name, cloudfront, datasource_root, source_covered, 
+def read_gx_config_file(path=None) -> dict:
+    if path is None:
+        path = DEFAULT_CONFIG_FILE_PATH
+    with open(path, "r") as config_file:
+        configfile = yaml.safe_load(config_file)
+    return configfile
+
+
+def profile_data(df, suite_name, cloudfront, datasource_root, source_covered,
                  mapping_config, run_name):
     qa_bucket = s3.Bucket(qa_bucket_name)
     config = change_ge_config(datasource_root)

tests/unit_tests/data_test/test_profiling.py

@@ -1,12 +1,28 @@
 import pytest
-from functions.data_test.profiling import (add_local_s3_to_stores)
+from functions.data_test.profiling import (add_local_s3_to_stores,
+                                           read_gx_config_file)
+
+ENDPOINT_URL = "http://localhost:4566"
 
 
 @pytest.mark.parametrize("stores, expected_output", [
     ({"store1": {"store_backend": {"type": "s3", "bucket": "my-bucket"}}},
-     {"store1": {"store_backend": {"type": "s3", "bucket": "my-bucket", "boto3_options": {"endpoint_url": "http://localhost:4566"}}}}),
+     {"store1": {"store_backend": {"type": "s3", "bucket": "my-bucket",
+                                   "boto3_options":
+                                   {"endpoint_url": ENDPOINT_URL}}}}),
     ({}, {})
 ])
 def test_add_local_s3_to_stores(stores, expected_output):
-    endpoint_url = "http://localhost:4566"
-    assert add_local_s3_to_stores(stores, endpoint_url) == expected_output
+    assert add_local_s3_to_stores(stores, ENDPOINT_URL) == expected_output
+
+
+def test_gx_config_file():
+    config_file = read_gx_config_file()
+    assert config_file["config_version"] == 2.0
+
+
+def test_gx_config_file_path_is_not_none(tmpdir):
+    p = tmpdir.mkdir("config").join("great_expectations.yml")
+    p.write("config_version: 10.0")
+    config_file = read_gx_config_file(path=p)
+    assert config_file["config_version"] == 10.0