add test for parsing a bad 4-component LLVM version

programmerjake · programmerjake · commit f55fae8980d8 · 2020-11-02T12:23:14.000-08:00
diff --git a/src/lib.rs b/src/lib.rs
@@ -569,7 +569,7 @@ fn parse_llvm_version_leading_zero_on_nonzero() {
 }
 
 #[test]
-fn parse_llvm_version_too_many_components() {
+fn parse_llvm_version_3_components() {
     let res: Result<LlvmVersion, _> = "4.0.0".parse();
 
     assert!(match res {
@@ -578,6 +578,16 @@ fn parse_llvm_version_too_many_components() {
     });
 }
 
+#[test]
+fn parse_llvm_version_4_components() {
+    let res: Result<LlvmVersion, _> = "4.0.0.0".parse();
+
+    assert!(match res {
+        Err(LlvmVersionParseError::TooManyComponents) => true,
+        _ => false,
+    });
+}
+
 #[test]
 fn parse_llvm_version_component_sign_plus() {
     let res: Result<LlvmVersion, _> = "1.+3".parse();
