Update upstream source from tag 'upstream/1.52.1+dfsg1'

[rustc.git] / vendor / rustc-ap-rustc_data_structures / src / small_c_str / tests.rs

diff --git a/vendor/rustc-ap-rustc_data_structures/src/small_c_str/tests.rs b/vendor/rustc-ap-rustc_data_structures/src/small_c_str/tests.rs
new file mode 100644 (file)
index 0000000..4727760
--- /dev/null
+++ b/vendor/rustc-ap-rustc_data_structures/src/small_c_str/tests.rs
@@ -0,0 +1,45 @@
+use super::*;
+
+#[test]
+fn short() {
+    const TEXT: &str = "abcd";
+    let reference = ffi::CString::new(TEXT.to_string()).unwrap();
+
+    let scs = SmallCStr::new(TEXT);
+
+    assert_eq!(scs.len_with_nul(), TEXT.len() + 1);
+    assert_eq!(scs.as_c_str(), reference.as_c_str());
+    assert!(!scs.spilled());
+}
+
+#[test]
+fn empty() {
+    const TEXT: &str = "";
+    let reference = ffi::CString::new(TEXT.to_string()).unwrap();
+
+    let scs = SmallCStr::new(TEXT);
+
+    assert_eq!(scs.len_with_nul(), TEXT.len() + 1);
+    assert_eq!(scs.as_c_str(), reference.as_c_str());
+    assert!(!scs.spilled());
+}
+
+#[test]
+fn long() {
+    const TEXT: &str = "01234567890123456789012345678901234567890123456789\
+                        01234567890123456789012345678901234567890123456789\
+                        01234567890123456789012345678901234567890123456789";
+    let reference = ffi::CString::new(TEXT.to_string()).unwrap();
+
+    let scs = SmallCStr::new(TEXT);
+
+    assert_eq!(scs.len_with_nul(), TEXT.len() + 1);
+    assert_eq!(scs.as_c_str(), reference.as_c_str());
+    assert!(scs.spilled());
+}
+
+#[test]
+#[should_panic]
+fn internal_nul() {
+    let _ = SmallCStr::new("abcd\0def");
+}