From cc5e532d14e69c84ee938b9e19da2a23f108ddfe Mon Sep 17 00:00:00 2001
From: Cameron Little <cameron@camlittle.com>
Date: Sat, 9 May 2020 14:49:31 +0200
Subject: [PATCH] Add failing test for invalid css with allClasses

This was reported at https://github.com/gohugoio/hugo/issues/7207
---
 formatters/html/html_test.go | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/formatters/html/html_test.go b/formatters/html/html_test.go
index cd9ea98..b056f19 100644
--- a/formatters/html/html_test.go
+++ b/formatters/html/html_test.go
@@ -222,3 +222,14 @@ func TestReconfigureOptions(t *testing.T) {
 	assert.NoError(t, err)
 	assert.Equal(t, `<pre class="chroma"><span class="nb">echo</span> FOO</pre>`, buf.String())
 }
+
+func TestWriteCssWithAllClasses(t *testing.T) {
+	formatter := New()
+	formatter.allClasses = true
+
+	var buf bytes.Buffer
+	err := formatter.WriteCSS(&buf, styles.Fallback)
+
+	assert.NoError(t, err)
+	assert.NotContains(t, buf.String(), ".chroma . {", "Generated css doesn't contain invalid css")
+}