safeConvert tests

tests/testnative.nim

@@ -56,4 +56,5 @@ import testtcptransport,
        testautonatservice,
        testautorelay,
        testdcutr,
-       testhpservice
+       testhpservice,
+       testutility

tests/testutility.nim

@@ -0,0 +1,76 @@
+{.used.}
+
+# Nim-Libp2p
+# Copyright (c) 2023 Status Research & Development GmbH
+# Licensed under either of
+#  * Apache License, version 2.0, ([LICENSE-APACHE](LICENSE-APACHE))
+#  * MIT license ([LICENSE-MIT](LICENSE-MIT))
+# at your option.
+# This file may not be copied, modified, or distributed except according to
+# those terms.
+
+import strformat
+import ./helpers
+import ../libp2p/utility
+
+suite "Utility":
+
+  test "successful safeConvert from int8 to int16":
+    var result: int16 = safeConvert[int16, int8](-128)
+    assert result == -128, fmt"Expected -128 but got {result}"
+
+  test "unsuccessful safeConvert from int16 to int8":
+    doAssert not (compiles do:
+      var result: int8 = safeConvert[int8, int16](32767))
+
+  test "successful safeConvert from uint8 to uint16":
+    var result: uint16 = safeConvert[uint16, uint8](255)
+    assert result == 255, fmt"Expected 255 but got {result}"
+
+  test "unsuccessful safeConvert from uint16 to uint8":
+    doAssert not (compiles do:
+      var result: uint8 = safeConvert[uint8, uint16](256))
+
+  test "successful safeConvert from char to int":
+    var result: int = safeConvert[int, char]('A')
+    assert result == 65, fmt"Expected 65 but got {result}"
+
+  test "unsuccessful safeConvert from int to char":
+    doAssert not (compiles do:
+      var result: char = safeConvert[char, int](128))
+
+  test "successful safeConvert from bool to int":
+    var result: int = safeConvert[int, bool](true)
+    assert result == 1, fmt"Expected 1 but got {result}"
+
+  test "unsuccessful safeConvert from int to bool":
+    doAssert not (compiles do:
+      var result: bool = safeConvert[bool, int](2))
+
+  test "successful safeConvert from enum to int":
+    type Color = enum red, green, blue
+    var result: int = safeConvert[int, Color](green)
+    assert result == 1, fmt"Expected 1 but got {result}"
+
+  test "unsuccessful safeConvert from int to enum":
+    type Color = enum red, green, blue
+    doAssert not (compiles do:
+      var result: Color = safeConvert[Color, int](3))
+
+  test "successful safeConvert from range to int":
+    var result: int = safeConvert[int, range[1..10]](5)
+    assert result == 5, fmt"Expected 5 but got {result}"
+
+  test "unsuccessful safeConvert from int to range":
+    doAssert not (compiles do:
+      var result: range[1..10] = safeConvert[range[1..10], int](11))
+
+  test "unsuccessful safeConvert from int to uint":
+    doAssert not (compiles do:
+      var result: uint = safeConvert[uint, int](11))
+
+  test "unsuccessful safeConvert from uint to int":
+    doAssert not (compiles do:
+      var result: uint = safeConvert[int, uint](11))
+
+