1 files changed, 63 insertions, 0 deletions
diff --git a/tests/test_html_formatter_linenos_elements.py b/tests/test_html_formatter_linenos_elements.py
new file mode 100644
index 0000000..286b60c
--- /dev/null
+++ b/tests/test_html_formatter_linenos_elements.py
@@ -0,0 +1,63 @@
+import os
+from io import StringIO
+
+import pytest
+
+from pygments.formatters import HtmlFormatter
+from pygments.lexers import PythonLexer
+
+from .support import structural_diff
+
+TESTDIR = os.path.dirname(os.path.abspath(__file__))
+EXPECTED_OUTPUT_DIR = os.path.join(TESTDIR, "html_linenos_expected_output")
+CODE = list(PythonLexer().get_tokens("# a\n# b\n# c"))
+
+
+def single_line(text):
+    return "".join(l.strip() for l in text.splitlines())
+
+
+# Note: option `anchorlinenos` is currently ignored for `linenos=inline`
+@pytest.mark.parametrize("linenos", ["inline", "table"])
+@pytest.mark.parametrize("noclasses", ["False", "True"])
+@pytest.mark.parametrize("linenostep", ["1", "2"])
+@pytest.mark.parametrize("linenostart", ["1", "8"])
+@pytest.mark.parametrize("linenospecial", ["0", "3"])
+@pytest.mark.parametrize("anchorlinenos", ["False", "True"])
+@pytest.mark.parametrize("filename", ["", "testfilename"])
+def test_linenos_elements(
+    linenos, noclasses, linenostep, linenostart, linenospecial, anchorlinenos, filename
+):
+    options = dict(
+        linenos=linenos,
+        noclasses=noclasses,
+        linenostep=linenostep,
+        linenostart=linenostart,
+        linenospecial=linenospecial,
+        anchorlinenos=anchorlinenos,
+        filename=filename,
+    )
+
+    output = StringIO()
+    fmt = HtmlFormatter(**options)
+    fmt.format(CODE, output)
+    html = output.getvalue()
+
+    filename_parts = []
+    filename_parts.append(linenos)
+    filename_parts.append("nocls" if noclasses == "True" else "cls")
+    filename_parts.append("step_" + linenostep)
+    filename_parts.append("start_" + linenostart)
+    filename_parts.append("special_" + linenospecial)
+    filename_parts.append("anchor" if anchorlinenos == "True" else "noanchor")
+    filename_parts.append("filename" if filename else "nofilename")
+    expected_html_filename = "_".join(filename_parts) + ".html"
+
+    # with open(os.path.join(EXPECTED_OUTPUT_DIR, expected_html_filename), 'w') as f:
+    #     import bs4 as BeautifulSoup
+    #     f.write(str(BeautifulSoup.BeautifulSoup(html, 'html.parser')))
+
+    with open(os.path.join(EXPECTED_OUTPUT_DIR, expected_html_filename)) as f:
+        expected_html = f.read()
+
+    structural_diff.structural_diff(html, expected_html)