Add ui test for `extends` error

2 files changed, 37 insertions, 0 deletions

diff --git a/testing/tests/ui/extends.rs b/testing/tests/ui/extends.rs
new file mode 100644
index 0000000..55c8b56
--- /dev/null
+++ b/testing/tests/ui/extends.rs
@@ -0,0 +1,18 @@
+use askama::Template;
+
+#[derive(Template)]
+#[template(
+    source = r#"{%- extends "whatever.html" %}"#,
+    ext = "html"
+)]
+struct ExtendsPre;
+
+#[derive(Template)]
+#[template(
+    source = r#"{% extends "whatever.html" -%}"#,
+    ext = "html"
+)]
+struct ExtendsPost;
+
+fn main() {
+}
diff --git a/testing/tests/ui/extends.stderr b/testing/tests/ui/extends.stderr
new file mode 100644
index 0000000..346246d
--- /dev/null
+++ b/testing/tests/ui/extends.stderr
@@ -0,0 +1,19 @@
+error: whitespace control is not allowed on `extends`
+       problems parsing template source at row 1, column 2 near:
+       "- extends \"whatever.html\" %}"
+ --> tests/ui/extends.rs:3:10
+  |
+3 | #[derive(Template)]
+  |          ^^^^^^^^
+  |
+  = note: this error originates in the derive macro `Template` (in Nightly builds, run with -Z macro-backtrace for more info)
+
+error: whitespace control is not allowed on `extends`
+       problems parsing template source at row 1, column 2 near:
+       " extends \"whatever.html\" -%}"
+  --> tests/ui/extends.rs:10:10
+   |
+10 | #[derive(Template)]
+   |          ^^^^^^^^
+   |
+   = note: this error originates in the derive macro `Template` (in Nightly builds, run with -Z macro-backtrace for more info)