diff --git a/rest_api/tests/unit/test_config.py b/rest_api/tests/unit/test_config.py
index 08c3814a7f..86b0445da6 100644
--- a/rest_api/tests/unit/test_config.py
+++ b/rest_api/tests/unit/test_config.py
@@ -17,11 +17,17 @@
 import shutil
 import tempfile
 
+from collections import OrderedDict
+
 from sawtooth_rest_api.config import load_default_rest_api_config
 from sawtooth_rest_api.config import load_toml_rest_api_config
+from sawtooth_rest_api.config import merge_rest_api_config
+from sawtooth_rest_api.config import RestApiConfig
 from sawtooth_rest_api.exceptions import RestApiConfigurationError
 
 
+
+
 class TestRestApiConfig(unittest.TestCase):
     def test_rest_api_defaults_sawtooth_home(self):
         """Tests the default REST API configuration.
@@ -114,3 +120,66 @@ def test_path_config_invalid_setting_in_file(self):
             os.environ.clear()
             os.environ.update(orig_environ)
             shutil.rmtree(directory)
+    def test_load_toml_rest_api_config(self):
+        '''Tests with the file name which does not exists  '''
+        filename = os.path.join('res_api.toml')
+        load_toml_rest_api_config(filename)
+    def test_rest_api_config_load_merge(self):
+        '''Tests the "merge_rest_api_config(configs)" function.
+        Given a list of PathConfig objects, merges them into
+        a single PathConfig,giving priority in the order of
+        the configs (first has highest priority).'''
+        os.environ.clear()
+        directory = tempfile.mkdtemp(prefix="test-path-config-")
+        os.environ['SAWTOOTH_HOME'] = directory
+        config_dir = os.path.join(directory, 'etc')
+        os.mkdir(config_dir)
+        conf_file = os.path.join(config_dir, 'rest_api.toml')
+        toml_str = ['bind = "test:1234"', 'connect = "tcp://test:4004"',
+               'timeout = 10', 'opentsdb_url = "data_base"',
+               'opentsdb_db = "http://data_base:0000"',
+               'opentsdb_username = "name"', 'opentsdb_password = "secret"']
+        default_dict = OrderedDict([
+            ('bind', "test:1234"),
+            ('connect', "tcp://test:4004"),
+            ('timeout', 10),
+            ('opentsdb_url', "data_base"),
+            ('opentsdb_db', "http://data_base:0000"),
+            ('opentsdb_username', "name"),
+            ('opentsdb_password', "secret")]
+            )
+        first_config = RestApiConfig(
+            bind="test:1234",
+            connect="tcp://test:4004",
+            timeout=10,
+            opentsdb_url="data_base",
+            opentsdb_db="http://data_base:0000")
+        try:
+            filename = os.path.join(config_dir, 'rest_api.toml')
+            with open(filename, 'w') as fd:
+                fd.write('bind = ["test:1234"]')
+                fd.write(os.linesep)
+                fd.write('connect = "tcp://test:4004"')
+                fd.write(os.linesep)
+                fd.write('timeout = 10')
+                fd.write(os.linesep)
+                fd.write('opentsdb_db = "data_base"')
+                fd.write(os.linesep)
+                fd.write('opentsdb_url = "http://data_base:0000"')
+                fd.write(os.linesep)
+                fd.write('opentsdb_username = "name"')
+                fd.write(os.linesep)
+                fd.write('opentsdb_password = "secret"')
+        finally:
+            pass
+        toml_config = load_toml_rest_api_config(conf_file)
+        default_config = load_default_rest_api_config()
+        merge_rest_api_config(
+        configs=[first_config, toml_config, default_config]).__repr__()
+        result_dict = merge_rest_api_config(
+        configs=[first_config, toml_config, default_config]).to_dict()
+        toml_string = merge_rest_api_config(
+        configs=[first_config, toml_config, default_config]).to_toml_string()
+        self.assertDictEqual(default_dict, result_dict)
+        self.assertEqual(toml_str, toml_string)
+        
diff --git a/rest_api/tests/unit/test_rest_api.py b/rest_api/tests/unit/test_rest_api.py
new file mode 100644
index 0000000000..4097b284ac
--- /dev/null
+++ b/rest_api/tests/unit/test_rest_api.py
@@ -0,0 +1,27 @@
+import os
+import unittest
+import tempfile
+import logging
+
+from sawtooth_rest_api.rest_api import load_rest_api_config
+from sawtooth_rest_api.config import RestApiConfig
+
+LOGGER = logging.getLogger(__name__)
+class Testparseargs(unittest.TestCase):
+    def test_load_rest_api_config(self):
+        """Tests function test_load_rest_api_config()
+        to check if it returns a RestApiConfig created
+        by loading a TOML file from the filesystem."""
+        first_config = RestApiConfig(
+            bind="test:1234",
+            connect="tcp://test:4004",
+            timeout=10,
+            opentsdb_url="data_base",
+            opentsdb_db="http://data_base:0000")
+        os.environ.clear()
+        directory = tempfile.mkdtemp(prefix="test-path-config-")
+        os.environ['SAWTOOTH_HOME'] = directory
+        config_dir = os.path.join(directory, 'etc')
+        os.mkdir(config_dir)
+        load_rest_api_config(first_config)
+        
\ No newline at end of file