Bug 1528042 - Test correct device list order in enumerateDevices(). r…

…=karlt

Differential Revision: https://phabricator.services.mozilla.com/D155430

UltraBlame original commit: 6c8c76da9ab72b9901733e6475496c83fea9988c

testing/web-platform/tests/mediacapture-streams/MediaDevices-enumerateDevices.https.html

@@ -474,6 +474,106 @@
 "
 )
 ;
+assert_equals
+(
+devices
+.
+filter
+(
+(
+{
+kind
+}
+)
+=
+>
+kind
+=
+=
+"
+audiooutput
+"
+)
+.
+length
+0
+"
+there
+should
+be
+no
+audio
+output
+devices
+.
+"
+)
+;
+assert_less_than_equal
+(
+devices
+.
+length
+2
+"
+there
+should
+be
+no
+more
+than
+two
+devices
+.
+"
+)
+;
+if
+(
+devices
+.
+length
+>
+1
+)
+{
+assert_equals
+(
+devices
+[
+0
+]
+.
+kind
+"
+audioinput
+"
+"
+audioinput
+is
+first
+"
+)
+;
+assert_equals
+(
+devices
+[
+1
+]
+.
+kind
+"
+videoinput
+"
+"
+videoinput
+is
+second
+"
+)
+;
+}
 }
 "
 mediaDevices
@@ -798,7 +898,7 @@
 )
 ;
 const
-kinds
+order
 =
 [
 "
@@ -826,7 +926,7 @@
 assert_in_array
 (
 kind
-kinds
+order
 "
 expected
 kind
@@ -904,6 +1004,76 @@
 ;
 }
 }
+const
+kinds
+=
+devices
+.
+map
+(
+(
+{
+kind
+}
+)
+=
+>
+kind
+)
+;
+const
+correct
+=
+[
+.
+.
+.
+kinds
+]
+.
+sort
+(
+(
+a
+b
+)
+=
+>
+order
+.
+indexOf
+(
+a
+)
+-
+order
+.
+indexOf
+(
+b
+)
+)
+;
+assert_equals
+(
+JSON
+.
+stringify
+(
+kinds
+)
+JSON
+.
+stringify
+(
+correct
+)
+"
+correct
+order
+"
+)
+;
 }
 "
 mediaDevices