new tester; all tests categorized

tests/assign/tcopy.nim

@@ -0,0 +1,25 @@
+discard """
+  file: "tcopy.nim"
+  output: "TEMP=C:\\Programs\\xyz\\bin"
+"""
+# tests the substr proc
+
+import
+  strutils
+
+proc main() =
+  const
+    example = r"TEMP=C:\Programs\xyz\bin"
+  var
+    a, b: string
+    p: int
+  p = find(example, "=")
+  a = substr(example, 0, p-1)
+  b = substr(example, p+1)
+  writeln(stdout, a & '=' & b)
+  #writeln(stdout, b)
+
+main()
+#OUT TEMP=C:\Programs\xyz\bin
+
+