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-rw-r--r--tests/ui/parser/chained-comparison-suggestion.rs53
1 files changed, 53 insertions, 0 deletions
diff --git a/tests/ui/parser/chained-comparison-suggestion.rs b/tests/ui/parser/chained-comparison-suggestion.rs
new file mode 100644
index 000000000..bbd46082c
--- /dev/null
+++ b/tests/ui/parser/chained-comparison-suggestion.rs
@@ -0,0 +1,53 @@
+// Check that we get nice suggestions when attempting a chained comparison.
+
+fn comp1() {
+ 1 < 2 <= 3; //~ ERROR comparison operators cannot be chained
+ //~^ ERROR mismatched types
+}
+
+fn comp2() {
+ 1 < 2 < 3; //~ ERROR comparison operators cannot be chained
+}
+
+fn comp3() {
+ 1 <= 2 < 3; //~ ERROR comparison operators cannot be chained
+ //~^ ERROR mismatched types
+}
+
+fn comp4() {
+ 1 <= 2 <= 3; //~ ERROR comparison operators cannot be chained
+ //~^ ERROR mismatched types
+}
+
+fn comp5() {
+ 1 > 2 >= 3; //~ ERROR comparison operators cannot be chained
+ //~^ ERROR mismatched types
+}
+
+fn comp6() {
+ 1 > 2 > 3; //~ ERROR comparison operators cannot be chained
+}
+
+fn comp7() {
+ 1 >= 2 > 3; //~ ERROR comparison operators cannot be chained
+}
+
+fn comp8() {
+ 1 >= 2 >= 3; //~ ERROR comparison operators cannot be chained
+ //~^ ERROR mismatched types
+}
+
+fn comp9() {
+ 1 == 2 < 3; //~ ERROR comparison operators cannot be chained
+}
+
+fn comp10() {
+ 1 > 2 == false; //~ ERROR comparison operators cannot be chained
+}
+
+fn comp11() {
+ 1 == 2 == 3; //~ ERROR comparison operators cannot be chained
+ //~^ ERROR mismatched types
+}
+
+fn main() {}