1 files changed, 115 insertions, 0 deletions
diff --git a/tests/int/tunsignedconv.nim b/tests/int/tunsignedconv.nim
new file mode 100644
index 000000000..6c73521d3
--- /dev/null
+++ b/tests/int/tunsignedconv.nim
@@ -0,0 +1,115 @@
+discard """
+  targets: "c cpp js"
+"""
+
+# Tests unsigned literals and implicit conversion between uints and ints
+
+var h8: uint8 = 128
+var h16: uint16 = 32768
+var h32: uint32 = 2147483648'u32
+var h64: uint64 = 9223372036854775808'u64
+var foobar: uint64 = 9223372036854775813'u64 # Issue 728
+
+var v8: uint8 = 10
+var v16: uint16 = 10
+var v32: uint32 = 10
+var v64: uint64 = 10
+
+# u8 + literal produces u8:
+var a8: uint8 = v8 + 10
+var a16: uint16 = v16 + 10
+
+when false:
+  var d8  = v8 + 10'i8
+  var d16 = v8 + 10'i16
+  var d32 = v8 + 10'i32
+
+when false:
+  # these don't work yet because unsigned.nim is stupid. XXX We need to fix this.
+  var f8  = v16 + 10'u8
+  var f16 = v16 + 10'u16
+  var f32 = v16 + 10'u32
+
+  var g8  = v32 + 10'u8
+  var g16 = v32 + 10'u16
+  var g32 = v32 + 10'u32
+
+var ar: array[0..20, int]
+var n8 = ar[v8]
+var n16 = ar[v16]
+var n32 = ar[v32]
+var n64 = ar[v64]
+
+
+block t4176:
+  var yyy: uint8 = 0
+  yyy = yyy - 127
+  doAssert type(yyy) is uint8
+
+# bug #13661
+
+proc fun(): uint = cast[uint](-1)
+const x0 = fun()
+
+doAssert typeof(x0) is uint
+
+discard $x0
+
+# bug #13671
+
+const x1 = cast[uint](-1)
+discard $(x1,)
+
+# bug #13698
+let n2: csize_t = 1
+doAssert $n2.int32 == "1"
+
+# bug #14616
+
+let limit = 1'u64
+
+let rangeVar = 0'u64 ..< limit
+
+when not defined(gcRefc):
+  doAssert repr(rangeVar) == """0 .. 0""", repr(rangeVar)
+
+# bug #15210
+
+let a3 = not 0'u64
+var success = false
+try:
+  discard a3.int64
+except RangeDefect:
+  success = true
+
+doAssert success, "conversion should fail at runtime"
+
+template main() =
+  # xxx move all tests under here so it gets tested in CT and RT
+  block: # bug #17572
+    type T = distinct uint64
+    func f(x: uint64): auto =
+      let a = T(x)
+      (x, a.uint64)
+    const x = 1'u64 shl 63 or 7
+    const b = T(x)
+    doAssert b.uint64 == 9223372036854775815'u64
+    doAssert $b.uint64 == "9223372036854775815"
+    doAssert f(x) == (9223372036854775815'u64, 9223372036854775815'u64)
+
+static: main()
+main()
+
+block:
+  let a = uint64.high
+  let b = uint32.high
+
+  doAssert a.uint64 == a
+  doAssert a.uint32 == uint32.high
+  doAssert a.uint16 == uint16.high
+  doAssert a.uint8 == uint8.high
+
+  doAssert b.uint64 == b
+  doAssert b.uint32 == b
+  doAssert b.uint16 == uint16.high
+  doAssert b.uint8 == uint8.high