Adding upstream version 1:115.7.0.upstream/1%115.7.0upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 40 insertions, 0 deletions

diff --git a/testing/web-platform/tests/docs/writing-tests/assumptions.md b/testing/web-platform/tests/docs/writing-tests/assumptions.md
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+# Test Assumptions
+
+The tests make a number of assumptions of the user agent, and new
+tests can freely rely on these assumptions being true:
+
+ * The device is a full-color device.
+ * The device has a viewport width of at least 800px.
+ * The UA imposes no minimum font size.
+ * The `medium` `font-size` computes to 16px.
+ * The canvas background is `white`.
+ * The initial value of `color` is `black`.
+ * The user stylesheet is empty (except where indicated by the tests).
+ * The device is interactive and uses scroll bars.
+ * The HTML `div` element is assigned `display: block;`, the
+   `unicode-bidi` property may be declared, and no other property
+   declarations.
+   <!-- unicode-bidi: isolate should be required; we currently don't
+   assume this because Chrome and Safari are yet to ship this: see
+   https://bugs.chromium.org/p/chromium/issues/detail?id=296863 and
+   https://bugs.webkit.org/show_bug.cgi?id=65617 -->
+ * The HTML `span` element is assigned `display: inline;` and no other
+   property declaration.
+ * The HTML `p` element is assigned `display: block;`
+ * The HTML `li` element is assigned `display: list-item;`
+ * The HTML `table` elements `table`, `tbody`, `tr`, and `td` are
+   assigned the `display` values `table`, `table-row-group`,
+   `table-row`, and `table-cell`, respectively.
+ * The UA implements reasonable line-breaking behavior; e.g., it is
+   assumed that spaces between alphanumeric characters provide line
+   breaking opportunities and that UAs will not break at every
+   opportunity, but only near the end of a line unless a line break is
+   forced.
+
+Tests for printing behavior make some further assumptions:
+
+ * The UA is set to print background colors and, if it supports
+   graphics, background images.
+ * The UA implements reasonable page-breaking behavior; e.g., it is
+   assumed that UAs will not break at every opportunity, but only near
+   the end of a page unless a page break is forced.