Add pygments as required test package

Author: sudo-jarvis

jsonschema_lexer/tests/test_integration.py

@@ -28,7 +28,9 @@ def keywords():
 def assert_single_token(lexer, s, token):
     """Show that a given string generates only one token."""
     tokens = list(lexer.get_tokens_unprocessed(s))
-    assert len(tokens) == 1 and s == tokens[0][2] and token == tokens[0][1]
+    assert len(tokens) == 1
+    assert s == tokens[0][2]
+    assert token == tokens[0][1]
 
 
 def assert_tokens(lexer, string, expected_tokens):

noxfile.py

@@ -38,7 +38,8 @@ def tests(session):
     """
     Run the test suite.
     """
-    session.install("pytest")
+
+    session.install("-r", REQUIREMENTS["tests"])
 
     if session.posargs and session.posargs[0] == "coverage":
         if len(session.posargs) > 1 and session.posargs[1] == "github":

test-requirements.in

@@ -1,2 +1,3 @@
 file:.#egg=jsonschema_lexer
 pytest
+pygments==2.17.2

test-requirements.txt

@@ -0,0 +1,3 @@
+file:.#egg=jsonschema_lexer
+pytest
+pygments==2.17.2