[librsvg: 6/7] Add tests for when ellipse's rx/ry properties default to "auto"

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

commit 52a98a03402812468b99ec4cc959d66e4deda553
Author: Federico Mena Quintero <federico gnome org>
Date:   Fri Mar 4 20:15:24 2022 -0600

    Add tests for when ellipse's rx/ry properties default to "auto"
    
    Yay, code coverage!
    
    Part-of: <https://gitlab.gnome.org/GNOME/librsvg/-/merge_requests/670>

 tests/Makefile.am                                           |  1 +
 .../reftests/svg2-reftests/ellipse-auto-rx-ry-ref.svg       |  4 ++++
 .../fixtures/reftests/svg2-reftests/ellipse-auto-rx-ry.svg  |  5 +++++
 .../svg2-reftests/ellipse-single-auto-rx-ry-ref.svg         |  5 +++++
 .../reftests/svg2-reftests/ellipse-single-auto-rx-ry.svg    |  8 ++++++++
 tests/src/main.rs                                           |  3 +++
 tests/src/shapes.rs                                         | 13 +++++++++++++
 7 files changed, 39 insertions(+)
---
diff --git a/tests/Makefile.am b/tests/Makefile.am
index 0085e48f1..b020af3a0 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -14,6 +14,7 @@ test_sources =                                \
        src/reference.rs                \
        src/reference_utils.rs          \
        src/render_crash.rs             \
+       src/shapes.rs                   \
        src/text.rs                     \
        src/utils.rs                    \
        src/cmdline/mod.rs              \
diff --git a/tests/fixtures/reftests/svg2-reftests/ellipse-auto-rx-ry-ref.svg 
b/tests/fixtures/reftests/svg2-reftests/ellipse-auto-rx-ry-ref.svg
new file mode 100644
index 000000000..4e605b423
--- /dev/null
+++ b/tests/fixtures/reftests/svg2-reftests/ellipse-auto-rx-ry-ref.svg
@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<svg xmlns="http://www.w3.org/2000/svg"; width="200" height="200">
+  <!-- Empty, since an ellipse with auto rx/ry resolves to one with rx=ry=0 -->
+</svg>
diff --git a/tests/fixtures/reftests/svg2-reftests/ellipse-auto-rx-ry.svg 
b/tests/fixtures/reftests/svg2-reftests/ellipse-auto-rx-ry.svg
new file mode 100644
index 000000000..e33342222
--- /dev/null
+++ b/tests/fixtures/reftests/svg2-reftests/ellipse-auto-rx-ry.svg
@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<svg xmlns="http://www.w3.org/2000/svg"; width="200" height="200">
+  <!-- Test that the rx/ry properties, as they both default to "auto", will resolve to 0 -->
+  <ellipse cx="50%" cy="50%" fill="lime"/>
+</svg>
diff --git a/tests/fixtures/reftests/svg2-reftests/ellipse-single-auto-rx-ry-ref.svg 
b/tests/fixtures/reftests/svg2-reftests/ellipse-single-auto-rx-ry-ref.svg
new file mode 100644
index 000000000..49c92fd7c
--- /dev/null
+++ b/tests/fixtures/reftests/svg2-reftests/ellipse-single-auto-rx-ry-ref.svg
@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<svg xmlns="http://www.w3.org/2000/svg"; width="200" height="200">
+  <ellipse cx="25%" cy="50%" rx="10" ry="10" fill="lime"/>
+  <ellipse cx="75%" cy="50%" rx="10" ry="10" fill="lime"/>
+</svg>
diff --git a/tests/fixtures/reftests/svg2-reftests/ellipse-single-auto-rx-ry.svg 
b/tests/fixtures/reftests/svg2-reftests/ellipse-single-auto-rx-ry.svg
new file mode 100644
index 000000000..1805801cd
--- /dev/null
+++ b/tests/fixtures/reftests/svg2-reftests/ellipse-single-auto-rx-ry.svg
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<svg xmlns="http://www.w3.org/2000/svg"; width="200" height="200">
+  <!-- Test that if only one of the rx/ry properties defaults to "auto", it
+       resolves to the computed value of the other one - yielding a circle.
+  -->
+  <ellipse cx="25%" cy="50%" rx="10" fill="lime"/>
+  <ellipse cx="75%" cy="50%" ry="10" fill="lime"/>
+</svg>
diff --git a/tests/src/main.rs b/tests/src/main.rs
index 1f34ded4c..4528f34a8 100644
--- a/tests/src/main.rs
+++ b/tests/src/main.rs
@@ -44,6 +44,9 @@ mod reference_utils;
 #[cfg(test)]
 mod render_crash;
 
+#[cfg(test)]
+mod shapes;
+
 #[cfg(test)]
 mod text;
 
diff --git a/tests/src/shapes.rs b/tests/src/shapes.rs
new file mode 100644
index 000000000..8545b79da
--- /dev/null
+++ b/tests/src/shapes.rs
@@ -0,0 +1,13 @@
+use crate::test_svg_reference;
+
+test_svg_reference!(
+    ellipse_auto_rx_ry,
+    "tests/fixtures/reftests/svg2-reftests/ellipse-auto-rx-ry.svg",
+    "tests/fixtures/reftests/svg2-reftests/ellipse-auto-rx-ry-ref.svg"
+);
+
+test_svg_reference!(
+    ellipse_single_auto_rx_ry,
+    "tests/fixtures/reftests/svg2-reftests/ellipse-single-auto-rx-ry.svg",
+    "tests/fixtures/reftests/svg2-reftests/ellipse-single-auto-rx-ry-ref.svg"
+);