Make Filters constructible from IntoIterator

CHANGELOG.md

@@ -2,6 +2,10 @@
 
 All notable changes to insta and cargo-insta are documented here.
 
+## 1.38.0
+
+- `Filters` is now constructible from `IntoIterator`.  #400
+
 ## 1.37.0
 
 - All macros for file snapshots should now handle trailing commas (but not yet inline snapshots)

insta/src/filters.rs

@@ -1,4 +1,5 @@
 use std::borrow::Cow;
+use std::iter::FromIterator;
 
 use regex::Regex;
 
@@ -10,9 +11,15 @@ pub struct Filters {
 }
 
 impl<'a> From<Vec<(&'a str, &'a str)>> for Filters {
-    fn from(value: Vec<(&'a str, &'a str)>) -> Filters {
+    fn from(value: Vec<(&'a str, &'a str)>) -> Self {
+        Self::from_iter(value)
+    }
+}
+
+impl<'a> FromIterator<(&'a str, &'a str)> for Filters {
+    fn from_iter<I: IntoIterator<Item = (&'a str, &'a str)>>(iter: I) -> Self {
         let mut rv = Filters::default();
-        for (regex, replacement) in value {
+        for (regex, replacement) in iter {
             rv.add(regex, replacement);
         }
         rv
@@ -58,3 +65,15 @@ fn test_filters() {
         "hellohello [NAME] [a]bc"
     );
 }
+
+#[test]
+fn test_static_str_array_conversion() {
+    let arr: [(&'static str, &'static str); 2] = [("a1", "b1"), ("a2", "b2")];
+    let _ = Filters::from_iter(arr);
+}
+
+#[test]
+fn test_vec_str_conversion() {
+    let vec: Vec<(&str, &str)> = Vec::from([("a1", "b1"), ("a2", "b2")]);
+    let _ = Filters::from(vec);
+}