[librsvg: 7/8] rsvg-convert: Tests for invalid zoom factors

[Federico Mena Quintero <federico src gnome org>]

commit 4af59406ebe15a1e82448f80488694b0c0744e4b
Author: Federico Mena Quintero <federico gnome org>
Date:   Wed Jul 7 17:29:57 2021 -0500

    rsvg-convert: Tests for invalid zoom factors

 tests/src/cmdline/rsvg_convert.rs | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)
---
diff --git a/tests/src/cmdline/rsvg_convert.rs b/tests/src/cmdline/rsvg_convert.rs
index 726b20ef..f23b3f02 100644
--- a/tests/src/cmdline/rsvg_convert.rs
+++ b/tests/src/cmdline/rsvg_convert.rs
@@ -471,6 +471,24 @@ fn huge_zoom_factor_yields_error() {
         ));
 }
 
+#[test]
+fn negative_zoom_factor_yields_error() {
+    RsvgConvert::new_with_input("tests/fixtures/dimensions/521-with-viewbox.svg")
+        .arg("--zoom=-2")
+        .assert()
+        .failure()
+        .stderr(contains("Invalid zoom"));
+}
+
+#[test]
+fn invalid_zoom_factor_yields_error() {
+    RsvgConvert::new_with_input("tests/fixtures/dimensions/521-with-viewbox.svg")
+        .arg("--zoom=foo")
+        .assert()
+        .failure()
+        .stderr(contains("Invalid value"));
+}
+
 #[test]
 fn default_resolution_is_96dpi() {
     RsvgConvert::new_with_input("tests/fixtures/api/dpi.svg")