codecoverage/bot: Add system check for robustcheckout and genhtml (#2219)

src/codecoverage/bot/tests/test__system.py

@@ -13,13 +13,14 @@ def test_mercurial():
 
     # Check mercurial version
     output = run_check(['hg', 'version', '-T', '{ver}'])
-    assert output.decode('utf-8') == '4.8'
+    assert output.decode('utf-8').startswith('4.8')
 
     # Check needed extensions
     output = run_check(['hg', 'version', '-T', '{extensions}'])
     extensions = output.decode('utf-8').split('\n')
     assert 'hgmo' in extensions
     assert 'pushlog' in extensions
+    assert 'robustcheckout' in extensions
 
 
 def test_grcov():
@@ -27,3 +28,10 @@ def test_grcov():
     Test grcov is available on the system
     '''
     assert shutil.which('grcov'), 'Missing grcov'
+
+
+def test_genhtml():
+    '''
+    Test genhtml is available on the system
+    '''
+    assert shutil.which('genhtml'), 'Missing genhtml'