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Add regression test for if let chain

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This commit is contained in:
Guillaume Gomez 2024-12-23 15:24:16 +01:00
parent 2262a8d786
commit 5deb71920d
1 changed files with 74 additions and 0 deletions
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74
rinja_derive/src/tests.rs
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@ -196,6 +196,80 @@ fn check_if_let() {
);
}
// Since this feature is not stable yet, we can't add a "normal" test for it so instead we check
// the generated code.
#[test]
fn check_if_let_chain() {
// Both `bla` and `blob` variables must exist in this `if`.
compare(
"{% if let Some(bla) = y && x && let Some(blob) = y %}{{bla}} {{blob}}{% endif %}",
r#"if let Some(bla) = &self.y && self.x && let Some(blob) = &self.y {
match (
&((&&rinja::filters::AutoEscaper::new(&(bla), rinja::filters::Text))
.rinja_auto_escape()?),
&((&&rinja::filters::AutoEscaper::new(&(blob), rinja::filters::Text))
.rinja_auto_escape()?),
) {
(expr0, expr2) => {
(&&rinja::filters::Writable(expr0)).rinja_write(__rinja_writer)?;
__rinja_writer.write_str(" ")?;
(&&rinja::filters::Writable(expr2)).rinja_write(__rinja_writer)?;
}
}
}"#,
&[],
7,
);
compare(
r#"{% if let Some(bla) = y
&& bla == "x"
&& let Some(blob) = z
&& blob == "z" %}{{bla}} {{blob}}{% endif %}"#,
r#"if let Some(bla) = &self.y && bla == "x" && let Some(blob) = &self.z && blob == "z" {
match (
&((&&rinja::filters::AutoEscaper::new(&(bla), rinja::filters::Text))
.rinja_auto_escape()?),
&((&&rinja::filters::AutoEscaper::new(&(blob), rinja::filters::Text))
.rinja_auto_escape()?),
) {
(expr0, expr2) => {
(&&rinja::filters::Writable(expr0)).rinja_write(__rinja_writer)?;
__rinja_writer.write_str(" ")?;
(&&rinja::filters::Writable(expr2)).rinja_write(__rinja_writer)?;
}
}
}"#,
&[],
7,
);
// Bindings variables with the same name as the bound variable should be declared in the right
// order.
compare(
r#"{% if let Some(y) = y
&& y == "x"
&& let Some(z) = z
&& z == "z" %}{{y}} {{z}}{% endif %}"#,
r#"if let Some(y) = &self.y && y == "x" && let Some(z) = &self.z && z == "z" {
match (
&((&&rinja::filters::AutoEscaper::new(&(y), rinja::filters::Text))
.rinja_auto_escape()?),
&((&&rinja::filters::AutoEscaper::new(&(z), rinja::filters::Text))
.rinja_auto_escape()?),
) {
(expr0, expr2) => {
(&&rinja::filters::Writable(expr0)).rinja_write(__rinja_writer)?;
__rinja_writer.write_str(" ")?;
(&&rinja::filters::Writable(expr2)).rinja_write(__rinja_writer)?;
}
}
}"#,
&[],
7,
);
}
#[test]
fn check_includes_only_once() {
// In this test we make sure that every used template gets referenced exactly once.