Account for let_chains in collapsible_if ui test cases.

rust-lang · Jun 23, 2019 · 6ef8b57 · 6ef8b57
1 parent b918594
commit 6ef8b57
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diff --git a/tests/ui/collapsible_if.fixed b/tests/ui/collapsible_if.fixed
@@ -172,4 +172,25 @@ else {
             println!("Hello world!");
         }
     }
+
+    // Test behavior wrt. `let_chains`.
+    // None of the cases below should be collapsed.
+    fn truth() -> bool { true }
+
+    // Prefix:
+    if let 0 = 1 {
+        if truth() {}
+    }
+
+    // Suffix:
+    if truth() {
+        if let 0 = 1 {}
+    }
+
+    // Midfix:
+    if truth() {
+        if let 0 = 1 {
+            if truth() {}
+        }
+    }
 }
diff --git a/tests/ui/collapsible_if.rs b/tests/ui/collapsible_if.rs
@@ -200,4 +200,25 @@ fn main() {
             println!("Hello world!");
         }
     }
+
+    // Test behavior wrt. `let_chains`.
+    // None of the cases below should be collapsed.
+    fn truth() -> bool { true }
+
+    // Prefix:
+    if let 0 = 1 {
+        if truth() {}
+    }
+
+    // Suffix:
+    if truth() {
+        if let 0 = 1 {}
+    }
+
+    // Midfix:
+    if truth() {
+        if let 0 = 1 {
+            if truth() {}
+        }
+    }
 }