[librsvg: 1/2] Add test cases for display:none and visibility:hidden

[Marge Bot <marge-bot src gnome org>]

commit f9da4f2a762b8d78366eca5cab90480787485eb4
Author: Michael Howell <michael notriddle com>
Date:   Tue Dec 21 09:19:47 2021 -0700

    Add test cases for display:none and visibility:hidden
    
    Part-of: <https://gitlab.gnome.org/GNOME/librsvg/-/merge_requests/647>

 tests/fixtures/text/display-none-ref.svg         |  4 ++++
 tests/fixtures/text/display-none.svg             |  5 +++++
 tests/fixtures/text/visibility-hidden-ref.svg    |  5 +++++
 tests/fixtures/text/visibility-hidden-x-attr.svg |  4 ++++
 tests/fixtures/text/visibility-hidden.svg        |  5 +++++
 tests/src/text.rs                                | 18 ++++++++++++++++++
 6 files changed, 41 insertions(+)
---
diff --git a/tests/fixtures/text/display-none-ref.svg b/tests/fixtures/text/display-none-ref.svg
new file mode 100644
index 000000000..23e7f9b68
--- /dev/null
+++ b/tests/fixtures/text/display-none-ref.svg
@@ -0,0 +1,4 @@
+<svg xmlns="http://www.w3.org/2000/svg"; width="50" height="50">
+       <text style="font: 5px Ahem;" x="5" y="10">X</text>
+       <text style="font: 5px Ahem;" x="5" y="25">XX</text>
+</svg>
\ No newline at end of file
diff --git a/tests/fixtures/text/display-none.svg b/tests/fixtures/text/display-none.svg
new file mode 100644
index 000000000..e5e31689b
--- /dev/null
+++ b/tests/fixtures/text/display-none.svg
@@ -0,0 +1,5 @@
+<svg xmlns="http://www.w3.org/2000/svg"; width="50" height="50">
+       <text style="font: 5px Ahem;" x="5" y="10">X<a style="display:none">X</a><tspan 
style="display:none">X</tspan></text>
+       <text style="font: 5px Ahem;" x="5" y="25">X<tspan><a style="display:none">X</a><tspan 
style="display:none">X<tspan style="display:inline" x="40">X</tspan><tspan style="display:block" 
x="45">X</tspan></tspan>X</tspan></text>
+       <text style="font: 5px Ahem; display: none" x="5" y="40">XXXXXX</text>
+</svg>
\ No newline at end of file
diff --git a/tests/fixtures/text/visibility-hidden-ref.svg b/tests/fixtures/text/visibility-hidden-ref.svg
new file mode 100644
index 000000000..162bf42e1
--- /dev/null
+++ b/tests/fixtures/text/visibility-hidden-ref.svg
@@ -0,0 +1,5 @@
+<svg xmlns="http://www.w3.org/2000/svg"; width="50" height="50">
+       <text style="font: 5px Ahem;" x="5" y="10">X</text>
+       <text style="font: 5px Ahem;" x="5" y="25">X</text>
+       <text style="font: 5px Ahem;" x="20" y="25">X</text>
+</svg>
\ No newline at end of file
diff --git a/tests/fixtures/text/visibility-hidden-x-attr.svg 
b/tests/fixtures/text/visibility-hidden-x-attr.svg
new file mode 100644
index 000000000..6007de952
--- /dev/null
+++ b/tests/fixtures/text/visibility-hidden-x-attr.svg
@@ -0,0 +1,4 @@
+<svg xmlns="http://www.w3.org/2000/svg"; width="50" height="50">
+       <text style="font: 5px Ahem;" x="5" y="10">X<tspan x="10" style="visibility:hidden">X</tspan><tspan 
style="visibility:hidden"><tspan x="15">X</tspan></tspan></text>
+       <text style="font: 5px Ahem;" x="5" y="25">X<tspan><tspan x="10" y="25" 
style="visibility:hidden">X</tspan><tspan x="15" style="visibility:hidden">X</tspan><tspan 
x="20">X</tspan></tspan></text>
+</svg>
\ No newline at end of file
diff --git a/tests/fixtures/text/visibility-hidden.svg b/tests/fixtures/text/visibility-hidden.svg
new file mode 100644
index 000000000..b39312f5e
--- /dev/null
+++ b/tests/fixtures/text/visibility-hidden.svg
@@ -0,0 +1,5 @@
+<svg xmlns="http://www.w3.org/2000/svg"; width="50" height="50">
+       <text style="font: 5px Ahem;" x="5" y="10">X<a style="visibility:hidden">X</a><tspan 
style="visibility:hidden">X</tspan></text>
+       <text style="font: 5px Ahem;" x="5" y="25">X<tspan><a style="visibility:hidden">X</a><tspan 
style="visibility:hidden">X</tspan>X</tspan></text>
+       <text style="font: 5px Ahem; visibility: hidden" x="5" y="40">XXXXXX</text>
+</svg>
\ No newline at end of file
diff --git a/tests/src/text.rs b/tests/src/text.rs
index 07d77801d..4596cf716 100644
--- a/tests/src/text.rs
+++ b/tests/src/text.rs
@@ -51,3 +51,21 @@ test_svg_reference!(
     "tests/fixtures/text/unicode-bidi-override.svg",
     "tests/fixtures/text/unicode-bidi-override-ref.svg"
 );
+
+test_svg_reference!(
+    display_none,
+    "tests/fixtures/text/display-none.svg",
+    "tests/fixtures/text/display-none-ref.svg"
+);
+
+test_svg_reference!(
+    visibility_hidden,
+    "tests/fixtures/text/visibility-hidden.svg",
+    "tests/fixtures/text/visibility-hidden-ref.svg"
+);
+
+test_svg_reference!(
+    visibility_hidden_x_attr,
+    "tests/fixtures/text/visibility-hidden-x-attr.svg",
+    "tests/fixtures/text/visibility-hidden-ref.svg"
+);