From 54d150d30e3e8f70ee043067c1eb9fc0ea75f5eb Mon Sep 17 00:00:00 2001
From: zyd <zydmayday@gmail.com>
Date: Fri, 3 Jun 2022 15:31:12 +0900
Subject: [PATCH] add method unary

---
 README.md          |  2 +-
 ramda/__init__.py  |  1 +
 ramda/unary.py     |  4 ++++
 test/test_unary.py | 20 ++++++++++++++++++++
 4 files changed, 26 insertions(+), 1 deletion(-)
 create mode 100644 ramda/unary.py
 create mode 100644 test/test_unary.py

diff --git a/README.md b/README.md
index 2ecf16a..1b6a37c 100644
--- a/README.md
+++ b/README.md
@@ -540,7 +540,7 @@ Partially supported
 - [ ] tryCatch
 - [ ] type
 - [ ] unapply
-- [ ] unary
+- [x] unary
 - [ ] uncurryN
 - [ ] unfold
 - [x] 0.1.2 union
diff --git a/ramda/__init__.py b/ramda/__init__.py
index c3e1dde..e1790b4 100644
--- a/ramda/__init__.py
+++ b/ramda/__init__.py
@@ -96,6 +96,7 @@
 from .tap import tap
 from .times import times
 from .toString import toString
+from .unary import unary
 from .union import union
 from .unionWith import unionWith
 from .uniq import uniq
diff --git a/ramda/unary.py b/ramda/unary.py
new file mode 100644
index 0000000..a9c03b7
--- /dev/null
+++ b/ramda/unary.py
@@ -0,0 +1,4 @@
+from .nAry import nAry
+from .private._curry1 import _curry1
+
+unary = _curry1(lambda fn: nAry(1, fn))
diff --git a/test/test_unary.py b/test/test_unary.py
new file mode 100644
index 0000000..21ef5ba
--- /dev/null
+++ b/test/test_unary.py
@@ -0,0 +1,20 @@
+
+import unittest
+
+import ramda as R
+from ramda.private._inspect import funcArgsLength
+
+"""
+https://github.com/ramda/ramda/blob/master/test/unary.js
+"""
+
+
+class TestUnary(unittest.TestCase):
+  def test_turns_multiple_argument_function_into_unary_one(self):
+    fn = R.unary(lambda *args: list(args))
+    self.assertEqual(1, funcArgsLength(fn))
+    self.assertEqual([1], fn(1, 2, 3))
+
+
+if __name__ == '__main__':
+  unittest.main()