diff --git a/tests/test_theHarvester.py b/tests/test_theHarvester.py
new file mode 100644
index 00000000..785a777b
--- /dev/null
+++ b/tests/test_theHarvester.py
@@ -0,0 +1,44 @@
+import os
+import sys
+from unittest.mock import patch
+
+import theHarvester.__main__ as theHarvester
+
+domain = 'metasploit.com'
+sys.argv = args = [os.path.curdir + 'theHarvester.py', '-d', domain, '-b', 'domain']
+
+
+@patch('theHarvester.discovery.baidusearch.SearchBaidu')
+@patch('theHarvester.lib.stash.stash_manager')
+def test_baidu(stash, search_engine):
+    mock_stash = stash()
+    args[-1] = 'baidu'
+    theHarvester.start()
+    assert mock_stash.store_all.call_count == 2
+
+
+@patch('theHarvester.discovery.crtsh.SearchCrtsh')
+@patch('theHarvester.lib.stash.stash_manager')
+def test_certsh(stash, search_engine):
+    mock_stash = stash()
+    args[-1] = 'crtsh'
+    theHarvester.start()
+    assert mock_stash.store_all.call_count == 1
+
+
+@patch('theHarvester.discovery.dnsdumpster.SearchDnsDumpster')
+@patch('theHarvester.lib.stash.stash_manager')
+def test_dnsdumpster(stash, search_engine):
+    mock_stash = stash()
+    args[-1] = 'dnsdumpster'
+    theHarvester.start()
+    assert mock_stash.store_all.call_count == 1
+
+
+@patch('theHarvester.discovery.dogpilesearch.SearchDogpile')
+@patch('theHarvester.lib.stash.stash_manager')
+def test_dogpilesearch(stash, search_engine):
+    mock_stash = stash()
+    args[-1] = 'dogpile'
+    theHarvester.start()
+    assert mock_stash.store_all.call_count == 2