Import W3C CSS tests to validate CSS parsing (#12735)

Downloaded W3C conformance tests for CSS 2.1 and CSS 3 (selectors),
extracted all CSS (style tags, inline styles, and linked stylesheets),
Since each CSS is valid SCSS, the parser should accept them. Since these
are browser tests, some include CSS fragments which are intentionally
malformed. These are excluded via explicit exclusion lists.

Change-Id: Ib3347e1c559908f3bdd12817e55985e85f0009a2

1 files changed, 5 insertions, 0 deletions

diff --git a/theme-compiler/tests/resources/w3ctests/scss/css3-modsel-170a.0.scss b/theme-compiler/tests/resources/w3ctests/scss/css3-modsel-170a.0.scss
new file mode 100644
index 0000000000..7d09cee5ee
--- /dev/null
+++ b/theme-compiler/tests/resources/w3ctests/scss/css3-modsel-170a.0.scss
@@ -0,0 +1,5 @@
+/* Source: http://www.w3.org/Style/CSS/Test/CSS3/Selectors/current/html/tests/css3-modsel-170a.html */
+
+  .span { color: red; }
+  .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, 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.span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span, .span { color: green } /* 2049 */
+