Implements basic support for building with .nimble-link'ed packages.

tests/develop/dependent/dependent.nimble

@@ -0,0 +1,12 @@
+# Package
+
+version       = "1.0"
+author        = "Dominik Picheta"
+description   = "dependent"
+license       = "MIT"
+
+srcDir = "src"
+
+# Dependencies
+
+requires "nim >= 0.16.0", "srcdirtest"

tests/develop/dependent/src/dependent.nim

@@ -0,0 +1,3 @@
+import srcdirtest
+
+doAssert foo() == "correct"

tests/develop/srcdirtest/src/srcdirtest.nim

@@ -1 +1,4 @@
+proc foo*(): string =
+  return "correct"
+
 echo("hello")

tests/tester.nim

@@ -24,10 +24,11 @@ test "can compile with --os:windows":
 template cd*(dir: string, body: untyped) =
   ## Sets the current dir to ``dir``, executes ``body`` and restores the
   ## previous working dir.
-  let lastDir = getCurrentDir()
-  setCurrentDir(dir)
-  body
-  setCurrentDir(lastDir)
+  block:
+    let lastDir = getCurrentDir()
+    setCurrentDir(dir)
+    body
+    setCurrentDir(lastDir)
 
 proc execNimble(args: varargs[string]): tuple[output: string, exitCode: int] =
   var quotedArgs = @args
@@ -500,4 +501,10 @@ suite "develop feature":
       let split = readFile(path).splitLines()
       check split.len == 2
       check split[0].endsWith("develop/srcdirtest/srcdirtest.nimble")
-      check split[1].endsWith("develop/srcdirtest/src")
+      check split[1].endsWith("develop/srcdirtest/src")
+
+    cd "develop/dependent":
+      let (output, exitCode) = execNimble("c", "-r", "src/dependent")
+      checkpoint output
+      check(output.processOutput.inLines("hello"))
+      check exitCode == QuitSuccess