Bug 1416350 Part 4: Add a reftest of repeat:auto-fit grids with leading implicit tracks.
MozReview-Commit-ID: 1faRQExChjS
new file mode 100644
--- /dev/null
+++ b/layout/reftests/css-grid/grid-repeat-auto-fill-fit-013-ref.html
@@ -0,0 +1,116 @@
+<!DOCTYPE HTML>
+<!--
+ Any copyright is dedicated to the Public Domain.
+ http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<html><head>
+<meta charset="utf-8">
+<title>CSS Grid Test Reference: test auto placement in repeat auto-fit grids with leading implicit tracks</title>
+<style type="text/css">
+body {
+ margin: 10px;
+ font-size: 10px;
+}
+.wrapper {
+ display: grid;
+ width: 600px;
+ background-color: #f00;
+}
+.wrapper > * {
+ background-color: #444;
+ color: #fff;
+}
+
+.templateFit {
+ grid-template-columns: 10px 10px repeat(auto-fill, 40px);
+}
+.templateFixedFit {
+ grid-template-columns: 10px calc(10px + 20px) repeat(auto-fill, 40px);
+}
+.templateFitFixed {
+ grid-template-columns: 10px 10px repeat(auto-fill, 40px) 40px;
+}
+.templateFixedFitFixed {
+ grid-template-columns: 10px calc(10px + 20px) repeat(auto-fill, 40px) 40px;
+}
+
+z {
+ grid-column: 1;
+}
+z::after {
+ content: "Z";
+}
+
+y {
+ grid-column: auto;
+}
+y::after {
+ content: "Y";
+}
+
+
+b {
+ grid-column: 3;
+}
+b::after {
+ content: "B";
+}
+
+c {
+ grid-column: 4;
+}
+c::after {
+ content: "C";
+}
+
+d {
+ grid-column: 5;
+}
+d::after {
+ content: "D";
+}
+
+e {
+ grid-column: 6;
+}
+e::after {
+ content: "E";
+}
+
+f {
+ grid-column: 7;
+}
+f::after {
+ content: "F";
+}
+
+</style>
+</head>
+<body>
+
+<div class="wrapper templateFit"><z></z><b></b><y></y></div>
+<div class="wrapper templateFit"><z></z><b></b><c></c><d></d></div>
+<div class="wrapper templateFit"><z></z><b></b><c></c><d></d><e></e><f></f></div>
+<div class="wrapper templateFit"><z></z><b></b><d style="grid-column: 4"></d></div>
+<div class="wrapper templateFit"><z></z><b></b><d style="grid-column: 4"></d><f style="grid-column: 5"></f></div>
+
+<div class="wrapper templateFixedFit"><z></z><b></b><y></y></div>
+<div class="wrapper templateFixedFit"><z></z><b></b><c></c><d></d></div>
+<div class="wrapper templateFixedFit"><z></z><b></b><c></c><d></d><e></e><f></f></div>
+<div class="wrapper templateFixedFit"><z></z><b></b><d style="grid-column: 4"></d></div>
+<div class="wrapper templateFixedFit"><z></z><b></b><d style="grid-column: 4"></d><f style="grid-column: 5"></f></div>
+
+<div class="wrapper templateFitFixed"><z></z><b></b><y></y></div>
+<div class="wrapper templateFitFixed"><z></z><b></b><c></c><d></d></div>
+<div class="wrapper templateFitFixed"><z></z><b></b><c></c><d></d><e></e><f></f></div>
+<div class="wrapper templateFitFixed"><z></z><b></b><d style="grid-column: 4"></d></div>
+<div class="wrapper templateFitFixed"><z></z><b></b><d style="grid-column: 4"></d><f style="grid-column: 5"></f></div>
+
+<div class="wrapper templateFixedFitFixed"><z></z><b></b><y></y></div>
+<div class="wrapper templateFixedFitFixed"><z></z><b></b><c></c><d></d></div>
+<div class="wrapper templateFixedFitFixed"><z></z><b></b><c></c><d></d><e></e><f></f></div>
+<div class="wrapper templateFixedFitFixed"><z></z><b></b><d style="grid-column: 4"></d></div>
+<div class="wrapper templateFixedFitFixed"><z></z><b></b><d style="grid-column: 4"></d><f style="grid-column: 5"></f></div>
+
+</body>
+</html>
new file mode 100644
--- /dev/null
+++ b/layout/reftests/css-grid/grid-repeat-auto-fill-fit-013.html
@@ -0,0 +1,135 @@
+<!DOCTYPE HTML>
+<!--
+ Any copyright is dedicated to the Public Domain.
+ http://creativecommons.org/publicdomain/zero/1.0/
+-->
+<html><head>
+<meta charset="utf-8">
+<title>CSS Grid Test: test placement in repeat auto-fit grids with leading implicit tracks</title>
+<link rel="author" title="Mats Palmgren" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1416350">
+<link rel="help" href="https://drafts.csswg.org/css-grid/#valdef-repeat-auto-fill">
+<link rel="match" href="grid-repeat-auto-fill-fit-013-ref.html">
+<style type="text/css">
+body {
+ margin: 10px;
+ font-size: 10px;
+}
+.wrapper {
+ display: grid;
+ width: 600px;
+ background-color: #f00;
+ grid-auto-columns: 10px;
+ grid-auto-flow: row;
+}
+.wrapper > * {
+ background-color: #444;
+ color: #fff;
+}
+
+.relative {
+ position: relative;
+}
+
+.absposchild {
+ z-index: -1;
+ position: absolute;
+ grid-column-end: span 1;
+ top: 0px;
+ bottom: 0px;
+ left: 0px;
+ right: 0px;
+}
+
+.templateFit {
+ grid-template-columns: repeat(auto-fit, 40px);
+}
+.templateFixedFit {
+ grid-template-columns: 20px repeat(auto-fit, 40px);
+}
+.templateFitFixed {
+ grid-template-columns: repeat(auto-fit, 40px) 40px;
+}
+.templateFixedFitFixed {
+ grid-template-columns: 20px repeat(auto-fit, 40px) 40px;
+}
+
+z {
+ grid-column: -18;
+}
+z::after {
+ content: "Z";
+}
+
+y {
+ grid-column: auto;
+}
+y::after {
+ content: "Y";
+}
+
+
+b {
+ grid-column: 3;
+}
+b::after {
+ content: "B";
+}
+
+c {
+ grid-column: 5;
+}
+c::after {
+ content: "C";
+}
+
+d {
+ grid-column: 7;
+}
+d::after {
+ content: "D";
+}
+
+e {
+ grid-column: 9;
+}
+e::after {
+ content: "E";
+}
+
+f {
+ grid-column: 11;
+}
+f::after {
+ content: "F";
+}
+
+</style>
+</head>
+<body>
+
+<div class="wrapper templateFit"><z></z><b></b><y></y></div>
+<div class="wrapper templateFit"><z></z><b></b><c></c><d></d></div>
+<div class="wrapper templateFit"><z></z><b></b><c></c><d></d><e></e><f></f></div>
+<div class="wrapper templateFit relative"><z></z><b></b><c class="absposchild"></c><d></d></div>
+<div class="wrapper templateFit relative"><z></z><b></b><c class="absposchild"></c><d></d><e class="absposchild"></e><f></f></div>
+
+<div class="wrapper templateFixedFit"><z></z><b></b><y></y></div>
+<div class="wrapper templateFixedFit"><z></z><b></b><c></c><d></d></div>
+<div class="wrapper templateFixedFit"><z></z><b></b><c></c><d></d><e></e><f></f></div>
+<div class="wrapper templateFixedFit relative"><z></z><b></b><c class="absposchild"></c><d></d></div>
+<div class="wrapper templateFixedFit relative"><z></z><b></b><c class="absposchild"></c><d></d><e class="absposchild"></e><f></f></div>
+
+<div class="wrapper templateFitFixed"><z></z><b></b><y></y></div>
+<div class="wrapper templateFitFixed"><z></z><b></b><c></c><d></d></div>
+<div class="wrapper templateFitFixed"><z></z><b></b><c></c><d></d><e></e><f></f></div>
+<div class="wrapper templateFitFixed relative"><z></z><b></b><c class="absposchild"></c><d></d></div>
+<div class="wrapper templateFitFixed relative"><z></z><b></b><c class="absposchild"></c><d></d><e class="absposchild"></e><f></f></div>
+
+<div class="wrapper templateFixedFitFixed"><z></z><b></b><y></y></div>
+<div class="wrapper templateFixedFitFixed"><z></z><b></b><c></c><d></d></div>
+<div class="wrapper templateFixedFitFixed"><z></z><b></b><c></c><d></d><e></e><f></f></div>
+<div class="wrapper templateFixedFitFixed relative"><z></z><b></b><c class="absposchild"></c><d></d></div>
+<div class="wrapper templateFixedFitFixed relative"><z></z><b></b><c class="absposchild"></c><d></d><e class="absposchild"></e><f></f></div>
+
+</body>
+</html>
--- a/layout/reftests/css-grid/reftest.list
+++ b/layout/reftests/css-grid/reftest.list
@@ -181,16 +181,17 @@ skip-if(Android&&isDebugBuild) == grid-r
== grid-repeat-auto-fill-fit-005.html grid-repeat-auto-fill-fit-005-ref.html
== grid-repeat-auto-fill-fit-006.html grid-repeat-auto-fill-fit-006-ref.html
== grid-repeat-auto-fill-fit-007.html grid-repeat-auto-fill-fit-007-ref.html
== grid-repeat-auto-fill-fit-008.html grid-repeat-auto-fill-fit-008-ref.html
== grid-repeat-auto-fill-fit-009.html grid-repeat-auto-fill-fit-009-ref.html
== grid-repeat-auto-fill-fit-010.html grid-repeat-auto-fill-fit-010-ref.html
== grid-repeat-auto-fill-fit-011.html grid-repeat-auto-fill-fit-010-ref.html
== grid-repeat-auto-fill-fit-012.html grid-repeat-auto-fill-fit-012-ref.html
+== grid-repeat-auto-fill-fit-013.html grid-repeat-auto-fill-fit-013-ref.html
== grid-item-blockifying-001.html grid-item-blockifying-001-ref.html
== grid-fragmentation-001.html grid-fragmentation-001-ref.html
== grid-fragmentation-002.html grid-fragmentation-002-ref.html
== grid-fragmentation-003.html grid-fragmentation-003-ref.html
== grid-fragmentation-004.html grid-fragmentation-004-ref.html
== grid-fragmentation-005.html grid-fragmentation-005-ref.html
== grid-fragmentation-006.html grid-fragmentation-006-ref.html
== grid-fragmentation-007.html grid-fragmentation-007-ref.html
