1 files changed, 32 insertions, 0 deletions
diff --git a/tests/compiler/tprefixmatches.nim b/tests/compiler/tprefixmatches.nim
new file mode 100644
index 000000000..6a3186729
--- /dev/null
+++ b/tests/compiler/tprefixmatches.nim
@@ -0,0 +1,32 @@
+import compiler/prefixmatches
+import macros
+
+macro check(val, body: untyped): untyped =
+  result = newStmtList()
+  expectKind body, nnkStmtList
+  for b in body:
+    expectKind b, nnkTupleConstr
+    expectLen b, 2
+    let p = b[0]
+    let s = b[1]
+    result.add quote do:
+      doAssert prefixMatch(`p`, `s`) == `val`
+
+check PrefixMatch.Prefix:
+  ("abc", "abc")
+  ("a", "abc")
+  ("xyz", "X_yzzzZe")
+
+check PrefixMatch.Substr:
+  ("b", "abc")
+  ("abc", "fooabcabc")
+  ("abC", "foo_AB_c")
+
+check PrefixMatch.Abbrev:
+  ("abc", "AxxxBxxxCxxx")
+  ("xyz", "X_yabcZe")
+
+check PrefixMatch.None:
+  ("foobar", "afkslfjd_as")
+  ("xyz", "X_yuuZuuZe")
+  ("ru", "remotes")