1552a6c | plum | pyrossh

A statically typed, imperative programming language inspired by rust, python

1552a6c — Peter John 2026-11-01T21:53:58+05:30

test: Str edge cases from final review

Files changed (1) hide show

plum-std/Str.plum CHANGED Viewed

@@ -852,3 +852,27 @@ test "deburr strips Latin-1 and Latin Extended-A diacritics"
   assert "œuvre Ÿ ž".deburr() == "oeuvre Y z"
   assert "plain ASCII 1+1".deburr() == "plain ASCII 1+1"
   assert "3×4÷2 日本".deburr() == "3×4÷2 日本"
+test "Str edge cases: empties, sub bounds, replaceAll growth, split ends, utf8 reverse"
+  b := Buffer()
+  assert b.toStr() == ""
+  assert b.toStr() + b.toStr() == ""
+  assert {"" + ""}.length() == 0
+  assert "hello".sub(5, 5) == ""
+  assert "hello".sub(-3, 2) == "he"
+  assert "hello".sub(3, 99) == "lo"
+  assert "hello".sub(9, 12) == ""
+  assert "aa".replaceAll("a", "aa") == "aaaa"
+  assert "abc".replaceAll("", "x") == "abc"
+  assert "abc".replace("abcd", "z") == "abc"
+  parts := ",a,b,".split(",", 0)
+  assert parts.length() == 4
+  assert parts.get(0)! == ""
+  assert parts.get(3)! == ""
+  assert "a,b".split("abc,b", 0).length() == 1
+  assert "aé".reverse() == "éa"
+  assert "日本語".reverse() == "語本日"
+  assert "日本語".runeAt(2) == "語"
+  assert "  é  ".trim() == "é"
+  assert !"ab".startsWith("abc")
+  assert !"ab".endsWith("xab")