linking tests: create stream node after device nodes are ready

tests/scripts/scripts/00-test-linking-non-default-device-node.lua

@@ -8,7 +8,28 @@ Script.async_activation = true
 
 tu.createDeviceNode ("nondefault-device-node", "Audio/Sink")
 
-tu.createStreamNode ("stream-node")
+-- hook to create stream node, stream is created after the device nodes are
+-- ready
+SimpleEventHook {
+  name = "linkable-added@test-linking",
+  after = "linkable-added@test-utils-linking",
+  interests = {
+    -- on linkable added or removed, where linkable is adapter or plain node
+    EventInterest {
+      Constraint { "event.type", "=", "session-item-added" },
+      Constraint { "event.session-item.interface", "=", "linkable" },
+      Constraint { "item.factory.name", "c", "si-audio-adapter", "si-node" },
+    },
+  },
+  execute = function (event)
+    local lnkbl = event:get_subject ()
+    local name = lnkbl.properties ["node.name"]
+
+    if tu.linkables_ready () and name ~= "stream-node" then
+      tu.createStreamNode ("playback")
+    end
+  end
+}:register ()
 
 SimpleEventHook {
   name = "linking/test-linking",
@@ -21,7 +42,6 @@ SimpleEventHook {
   execute = function (event)
     local source, om, si, si_props, si_flags, target =
         pu:unwrap_find_target_event (event)
-
     if not target then
       return
     end

tests/scripts/scripts/01-test-linking-non-default-device-node-capture.lua

@@ -8,7 +8,27 @@ Script.async_activation = true
 
 tu.createDeviceNode ("nondefault-device-node", "Audio/Source")
 
-tu.createStreamNode ("stream-node")
+-- hook to create stream node, stream is created after the device nodes are
+-- ready
+SimpleEventHook {
+  name = "linkable-added@test-linking",
+  after = "linkable-added@test-utils-linking",
+  interests = {
+    -- on linkable added or removed, where linkable is adapter or plain node
+    EventInterest {
+      Constraint { "event.type", "=", "session-item-added" },
+      Constraint { "event.session-item.interface", "=", "linkable" },
+      Constraint { "item.factory.name", "c", "si-audio-adapter", "si-node" },
+    },
+  },
+  execute = function (event)
+    local lnkbl = event:get_subject ()
+    local name = lnkbl.properties ["node.name"]
+    if tu.linkables_ready () and name ~= "stream-node" then
+      tu.createStreamNode ("capture")
+    end
+  end
+}:register ()
 
 SimpleEventHook {
   name = "linking/test-linking",

tests/scripts/scripts/02-test-linking-default-device-node.lua

@@ -9,7 +9,28 @@ Script.async_activation = true
 tu.createDeviceNode ("nondefault-device-node", "Audio/Sink")
 tu.createDeviceNode ("default-device-node", "Audio/Sink")
 
-tu.createStreamNode ("stream-node")
+-- hook to create stream node, stream is created after the device nodes are
+-- ready
+SimpleEventHook {
+  name = "linkable-added@test-linking",
+  after = "linkable-added@test-utils-linking",
+  interests = {
+    -- on linkable added or removed, where linkable is adapter or plain node
+    EventInterest {
+      Constraint { "event.type", "=", "session-item-added" },
+      Constraint { "event.session-item.interface", "=", "linkable" },
+      Constraint { "item.factory.name", "c", "si-audio-adapter", "si-node" },
+    },
+  },
+  execute = function (event)
+    local lnkbl = event:get_subject ()
+    local name = lnkbl.properties ["node.name"]
+
+    if tu.linkables_ready () and name ~= "stream-node" then
+      tu.createStreamNode ("playback")
+    end
+  end
+}:register ()
 
 SimpleEventHook {
   name = "linking/test-linking",

tests/scripts/scripts/03-test-linking-default-device-node-capture.lua

@@ -9,7 +9,28 @@ Script.async_activation = true
 tu.createDeviceNode ("nondefault-device-node", "Audio/Source")
 tu.createDeviceNode ("default-device-node", "Audio/Source")
 
-tu.createStreamNode ("stream-node", "Stream/Input/Audio")
+-- hook to create stream node, stream is created after the device nodes are
+-- ready
+SimpleEventHook {
+  name = "linkable-added@test-linking",
+  after = "linkable-added@test-utils-linking",
+  interests = {
+    -- on linkable added or removed, where linkable is adapter or plain node
+    EventInterest {
+      Constraint { "event.type", "=", "session-item-added" },
+      Constraint { "event.session-item.interface", "=", "linkable" },
+      Constraint { "item.factory.name", "c", "si-audio-adapter", "si-node" },
+    },
+  },
+  execute = function (event)
+    local lnkbl = event:get_subject ()
+    local name = lnkbl.properties ["node.name"]
+
+    if tu.linkables_ready () and name ~= "stream-node" then
+      tu.createStreamNode ("capture")
+    end
+  end
+}:register ()
 
 SimpleEventHook {
   name = "linking/test-linking",

tests/scripts/scripts/04-test-linking-defined-device-node-target-object-string.lua

@@ -11,9 +11,8 @@ tu.createDeviceNode ("nondefault-device-node", "Audio/Sink")
 tu.createDeviceNode ("default-device-node", "Audio/Sink")
 tu.createDeviceNode ("defined-device-node", "Audio/Sink")
 
-tu.createStreamNode ("stream-node")
-
--- hook to selet defined target
+-- hook to create stream node, stream is created after the device nodes are
+-- ready
 SimpleEventHook {
   name = "linkable-added@test-linking",
   after = "linkable-added@test-utils-linking",
@@ -26,8 +25,13 @@ SimpleEventHook {
     },
   },
   execute = function (event)
-    if tu.linkables_ready () then
-      tu.set_target_in_stream ("target.object", "defined-device-node")
+    local lnkbl = event:get_subject ()
+    local name = lnkbl.properties ["node.name"]
+    if tu.linkables_ready () and name ~= "stream-node" then
+      local props = {
+        ["target.object"] = tu.lnkbls ["defined-device-node"].properties ["node.id"]
+      }
+      tu.createStreamNode ("playback", props)
     end
   end
 }:register ()

tests/scripts/scripts/05-test-linking-defined-device-node-target-object-int.lua

@@ -11,9 +11,8 @@ tu.createDeviceNode ("nondefault-device-node", "Audio/Sink")
 tu.createDeviceNode ("default-device-node", "Audio/Sink")
 tu.createDeviceNode ("defined-device-node", "Audio/Sink")
 
-tu.createStreamNode ("stream-node")
-
--- hook to selet defined target
+-- hook to create stream node, stream is created after the device nodes are
+-- ready
 SimpleEventHook {
   name = "linkable-added@test-linking",
   after = "linkable-added@test-utils-linking",
@@ -26,9 +25,13 @@ SimpleEventHook {
     },
   },
   execute = function (event)
-    if tu.linkables_ready () then
-      tu.set_target_in_stream ("target.object", "defined-device-node",
-          tonumber (tu.lnkbls ["defined-device-node"].properties ["node.id"]))
+    local lnkbl = event:get_subject ()
+    local name = lnkbl.properties ["node.name"]
+    if tu.linkables_ready () and name ~= "stream-node" then
+      local props = {
+        ["target.object"] = tonumber (tu.lnkbls ["defined-device-node"].properties ["node.id"]),
+      }
+      tu.createStreamNode ("playback", props)
     end
   end
 }:register ()

tests/scripts/scripts/06-test-linking-defined-device-node-target-object-name.lua

@@ -11,9 +11,8 @@ tu.createDeviceNode ("nondefault-device-node", "Audio/Sink")
 tu.createDeviceNode ("default-device-node", "Audio/Sink")
 tu.createDeviceNode ("defined-device-node", "Audio/Sink")
 
-tu.createStreamNode ("stream-node")
-
--- hook to selet defined target
+-- hook to create stream node, stream is created after the device nodes are
+-- ready
 SimpleEventHook {
   name = "linkable-added@test-linking",
   after = "linkable-added@test-utils-linking",
@@ -26,9 +25,13 @@ SimpleEventHook {
     },
   },
   execute = function (event)
-    if tu.linkables_ready () then
-      tu.set_target_in_stream ("target.object", "defined-device-node",
-          tu.lnkbls ["defined-device-node"].properties ["node.name"])
+    local lnkbl = event:get_subject ()
+    local name = lnkbl.properties ["node.name"]
+    if tu.linkables_ready () and name ~= "stream-node" then
+      local props = {
+        ["target.object"] = tu.lnkbls ["defined-device-node"].properties ["node.name"]
+      }
+      tu.createStreamNode ("playback", props)
     end
   end
 }:register ()

tests/scripts/scripts/07-test-linking-defined-device-node-target-object-string-capture.lua

@@ -11,9 +11,8 @@ tu.createDeviceNode ("nondefault-device-node", "Audio/Source")
 tu.createDeviceNode ("default-device-node", "Audio/Source")
 tu.createDeviceNode ("defined-device-node", "Audio/Source")
 
-tu.createStreamNode ("stream-node")
-
--- hook to selet defined target
+-- hook to create stream node, stream is created after the device nodes are
+-- ready
 SimpleEventHook {
   name = "linkable-added@test-linking",
   after = "linkable-added@test-utils-linking",
@@ -26,9 +25,13 @@ SimpleEventHook {
     },
   },
   execute = function (event)
-    if tu.linkables_ready () then
-      tu.set_target_in_stream ("target.object", "defined-device-node",
-          tonumber (tu.lnkbls ["defined-device-node"].properties ["node.name"]))
+    local lnkbl = event:get_subject ()
+    local name = lnkbl.properties ["node.name"]
+    if tu.linkables_ready () and name ~= "stream-node" then
+      local props = {
+        ["target.object"] = tu.lnkbls ["defined-device-node"].properties ["node.id"]
+      }
+      tu.createStreamNode ("capture", props)
     end
   end
 }:register ()

tests/scripts/scripts/08-test-linking-defined-device-node-target-object-int-capture.lua

@@ -11,9 +11,8 @@ tu.createDeviceNode ("nondefault-device-node", "Audio/Source")
 tu.createDeviceNode ("default-device-node", "Audio/Source")
 tu.createDeviceNode ("defined-device-node", "Audio/Source")
 
-tu.createStreamNode ("stream-node")
-
--- hook to selet defined target
+-- hook to create stream node, stream is created after the device nodes are
+-- ready
 SimpleEventHook {
   name = "linkable-added@test-linking",
   after = "linkable-added@test-utils-linking",
@@ -26,9 +25,13 @@ SimpleEventHook {
     },
   },
   execute = function (event)
-    if tu.linkables_ready () then
-      tu.set_target_in_stream ("target.object", "defined-device-node",
-          tonumber (tu.lnkbls ["defined-device-node"].properties ["node.id"]))
+    local lnkbl = event:get_subject ()
+    local name = lnkbl.properties ["node.name"]
+    if tu.linkables_ready () and name ~= "stream-node" then
+      local props = {
+        ["target.object"] = tonumber (tu.lnkbls ["defined-device-node"].properties ["node.id"]),
+      }
+      tu.createStreamNode ("capture", props)
     end
   end
 }:register ()

tests/scripts/scripts/09-test-linking-defined-device-node-target-object-name-capture.lua

@@ -11,9 +11,8 @@ tu.createDeviceNode ("nondefault-device-node", "Audio/Source")
 tu.createDeviceNode ("default-device-node", "Audio/Source")
 tu.createDeviceNode ("defined-device-node", "Audio/Source")
 
-tu.createStreamNode ("stream-node")
-
--- hook to selet defined target
+-- hook to create stream node, stream is created after the device nodes are
+-- ready
 SimpleEventHook {
   name = "linkable-added@test-linking",
   after = "linkable-added@test-utils-linking",
@@ -26,9 +25,13 @@ SimpleEventHook {
     },
   },
   execute = function (event)
-    if tu.linkables_ready () then
-      tu.set_target_in_stream ("target.object", "defined-device-node",
-          tu.lnkbls ["defined-device-node"].properties ["node.name"])
+    local lnkbl = event:get_subject ()
+    local name = lnkbl.properties ["node.name"]
+    if tu.linkables_ready () and name ~= "stream-node" then
+      local props = {
+        ["target.object"] = tu.lnkbls ["defined-device-node"].properties ["node.name"]
+      }
+      tu.createStreamNode ("capture", props)
     end
   end
 }:register ()

tests/scripts/scripts/10-test-linking-defined-device-node-node-target.lua

@@ -11,9 +11,8 @@ tu.createDeviceNode ("nondefault-device-node", "Audio/Sink")
 tu.createDeviceNode ("default-device-node", "Audio/Sink")
 tu.createDeviceNode ("defined-device-node", "Audio/Sink")
 
-tu.createStreamNode ("stream-node")
-
--- hook to selet defined target
+-- hook to create stream node, stream is created after the device nodes are
+-- ready
 SimpleEventHook {
   name = "linkable-added@test-linking",
   after = "linkable-added@test-utils-linking",
@@ -26,8 +25,13 @@ SimpleEventHook {
     },
   },
   execute = function (event)
-    if tu.linkables_ready () then
-      tu.set_target_in_stream ("node.target", "defined-device-node")
+    local lnkbl = event:get_subject ()
+    local name = lnkbl.properties ["node.name"]
+    if tu.linkables_ready () and name ~= "stream-node" then
+      local props = {
+        ["node.target"] = tu.lnkbls ["defined-device-node"].properties ["node.id"]
+      }
+      tu.createStreamNode ("playback", props)
     end
   end
 }:register ()

tests/scripts/scripts/11-test-linking-defined-device-node-node-target-capture.lua

@@ -11,9 +11,8 @@ tu.createDeviceNode ("nondefault-device-node", "Audio/Source")
 tu.createDeviceNode ("default-device-node", "Audio/Source")
 tu.createDeviceNode ("defined-device-node", "Audio/Source")
 
-tu.createStreamNode ("stream-node")
-
--- hook to selet defined target
+-- hook to create stream node, stream is created after the device nodes are
+-- ready
 SimpleEventHook {
   name = "linkable-added@test-linking",
   after = "linkable-added@test-utils-linking",
@@ -26,8 +25,13 @@ SimpleEventHook {
     },
   },
   execute = function (event)
-    if tu.linkables_ready () then
-      tu.set_target_in_stream ("node.target", "defined-device-node")
+    local lnkbl = event:get_subject ()
+    local name = lnkbl.properties ["node.name"]
+    if tu.linkables_ready () and name ~= "stream-node" then
+      local props = {
+        ["node.target"] = tu.lnkbls ["defined-device-node"].properties ["node.id"]
+      }
+      tu.createStreamNode ("capture", props)
     end
   end
 }:register ()

tests/scripts/scripts/12-test-linking-defined-device-node-target-node-metadata.lua

@@ -11,7 +11,32 @@ tu.createDeviceNode ("nondefault-device-node", "Audio/Sink")
 tu.createDeviceNode ("default-device-node", "Audio/Sink")
 tu.createDeviceNode ("defined-device-node", "Audio/Sink")
 
-tu.createStreamNode ("stream-node")
+-- hook to create stream node, stream is created after the device nodes are
+-- ready
+SimpleEventHook {
+  name = "linkable-added@test-linking",
+  after = "linkable-added@test-utils-linking",
+  interests = {
+    -- on linkable added or removed, where linkable is adapter or plain node
+    EventInterest {
+      Constraint { "event.type", "=", "session-item-added" },
+      Constraint { "event.session-item.interface", "=", "linkable" },
+      Constraint { "item.factory.name", "c", "si-audio-adapter", "si-node" },
+    },
+  },
+  execute = function (event)
+    local lnkbl = event:get_subject ()
+    local name = lnkbl.properties ["node.name"]
+
+    if tu.linkables_ready () and name ~= "stream-node" then
+      -- all linkables created execept stream-node
+      tu.createStreamNode ("playback")
+    elseif tu.linkables_ready () and tu.lnkbls ["stream-node"] then
+      -- when "stream-node" linkable is ready
+      tu.set_target_in_metadata ("target.node", "defined-device-node")
+    end
+  end
+}:register ()
 
 -- hook to selet defined target
 SimpleEventHook {
@@ -55,9 +80,9 @@ SimpleEventHook {
     local link = pu.lookupLink (si.id, si_flags.peer_id)
     assert (link ~= nil)
     assert (si_props ["node.name"] == "stream-node")
-    assert (target.properties ["node.name"] == "defined-device-node")
     assert ((link:get_active_features () & Feature.SessionItem.ACTIVE) ~= 0)
-
+    if (target.properties ["node.name"] == "defined-device-node") then
       Script:finish_activation ()
     end
+  end
 }:register ()

tests/scripts/scripts/13-test-linking-defined-device-node-target-node-metadata-capture.lua

@@ -11,9 +11,8 @@ tu.createDeviceNode ("nondefault-device-node", "Audio/Source")
 tu.createDeviceNode ("default-device-node", "Audio/Source")
 tu.createDeviceNode ("defined-device-node", "Audio/Source")
 
-tu.createStreamNode ("stream-node")
-
--- hook to selet defined target
+-- hook to create stream node, stream is created after the device nodes are
+-- ready
 SimpleEventHook {
   name = "linkable-added@test-linking",
   after = "linkable-added@test-utils-linking",
@@ -26,7 +25,14 @@ SimpleEventHook {
     },
   },
   execute = function (event)
-    if tu.linkables_ready () then
+    local lnkbl = event:get_subject ()
+    local name = lnkbl.properties ["node.name"]
+
+    if tu.linkables_ready () and name ~= "stream-node" then
+      -- all linkables created execept stream-node
+      tu.createStreamNode ("capture")
+    elseif tu.linkables_ready () and tu.lnkbls ["stream-node"] then
+      -- when "stream-node" linkable is ready
       tu.set_target_in_metadata ("target.node", "defined-device-node")
     end
   end
@@ -55,9 +61,9 @@ SimpleEventHook {
     local link = pu.lookupLink (si.id, si_flags.peer_id)
     assert (link ~= nil)
     assert (si_props ["node.name"] == "stream-node")
-    assert (target.properties ["node.name"] == "defined-device-node")
     assert ((link:get_active_features () & Feature.SessionItem.ACTIVE) ~= 0)
-
+    if (target.properties ["node.name"] == "defined-device-node") then
       Script:finish_activation ()
     end
+  end
 }:register ()

tests/scripts/scripts/14-test-linking-defined-device-node-target-object-metadata.lua

@@ -11,9 +11,8 @@ tu.createDeviceNode ("nondefault-device-node", "Audio/Sink")
 tu.createDeviceNode ("default-device-node", "Audio/Sink")
 tu.createDeviceNode ("defined-device-node", "Audio/Sink")
 
-tu.createStreamNode ("stream-node")
-
--- hook to selet defined target
+-- hook to create stream node, stream is created after the device nodes are
+-- ready
 SimpleEventHook {
   name = "linkable-added@test-linking",
   after = "linkable-added@test-utils-linking",
@@ -26,7 +25,14 @@ SimpleEventHook {
     },
   },
   execute = function (event)
-    if tu.linkables_ready () then
+    local lnkbl = event:get_subject ()
+    local name = lnkbl.properties ["node.name"]
+
+    if tu.linkables_ready () and name ~= "stream-node" then
+      -- all linkables created execept stream-node
+      tu.createStreamNode ("playback")
+    elseif tu.linkables_ready () and tu.lnkbls ["stream-node"] then
+      -- when "stream-node" linkable is ready
       tu.set_target_in_metadata ("target.object", "defined-device-node")
     end
   end
@@ -55,9 +61,10 @@ SimpleEventHook {
     local link = pu.lookupLink (si.id, si_flags.peer_id)
     assert (link ~= nil)
     assert (si_props ["node.name"] == "stream-node")
-    assert (target.properties ["node.name"] == "defined-device-node")
     assert ((link:get_active_features () & Feature.SessionItem.ACTIVE) ~= 0)
 
+    if (target.properties ["node.name"] == "defined-device-node") then
       Script:finish_activation ()
     end
+  end
 }:register ()

tests/scripts/scripts/15-test-linking-defined-device-node-target-object-metadata-capture.lua

@@ -11,9 +11,8 @@ tu.createDeviceNode ("nondefault-device-node", "Audio/Source")
 tu.createDeviceNode ("default-device-node", "Audio/Source")
 tu.createDeviceNode ("defined-device-node", "Audio/Source")
 
-tu.createStreamNode ("stream-node")
-
--- hook to selet defined target
+-- hook to create stream node, stream is created after the device nodes are
+-- ready
 SimpleEventHook {
   name = "linkable-added@test-linking",
   after = "linkable-added@test-utils-linking",
@@ -26,7 +25,14 @@ SimpleEventHook {
     },
   },
   execute = function (event)
-    if tu.linkables_ready () then
+    local lnkbl = event:get_subject ()
+    local name = lnkbl.properties ["node.name"]
+
+    if tu.linkables_ready () and name ~= "stream-node" then
+      -- all linkables created execept stream-node
+      tu.createStreamNode ("capture")
+    elseif tu.linkables_ready () and tu.lnkbls ["stream-node"] then
+      -- when "stream-node" linkable is ready
       tu.set_target_in_metadata ("target.object", "defined-device-node")
     end
   end
@@ -55,9 +61,10 @@ SimpleEventHook {
     local link = pu.lookupLink (si.id, si_flags.peer_id)
     assert (link ~= nil)
     assert (si_props ["node.name"] == "stream-node")
-    assert (target.properties ["node.name"] == "defined-device-node")
     assert ((link:get_active_features () & Feature.SessionItem.ACTIVE) ~= 0)
 
+    if (target.properties ["node.name"] == "defined-device-node") then
       Script:finish_activation ()
     end
+  end
 }:register ()

tests/scripts/scripts/16-test-linking-defined-device-node-target-object-int-metadata.lua

@@ -12,9 +12,8 @@ tu.createDeviceNode ("default-device-node", "Audio/Sink")
 tu.createDeviceNode ("defined-device-node-in-props", "Audio/Sink")
 tu.createDeviceNode ("defined-device-node-in-metadata", "Audio/Sink")
 
-tu.createStreamNode ("stream-node")
-
--- hook to selet defined target
+-- hook to create stream node, stream is created after the device nodes are
+-- ready
 SimpleEventHook {
   name = "linkable-added@test-linking",
   after = "linkable-added@test-utils-linking",
@@ -27,9 +26,18 @@ SimpleEventHook {
     },
   },
   execute = function (event)
-    if tu.linkables_ready () then
-      tu.set_target_in_stream ("target.object", "defined-device-node-in-props")
-      tu.set_target_in_metadata ("target.node", "defined-device-node-in-metadata")
+    local lnkbl = event:get_subject ()
+    local name = lnkbl.properties ["node.name"]
+
+    if tu.linkables_ready () and name ~= "stream-node" then
+      -- all linkables created execept stream-node
+      local props = {
+        ["target.object"] = tu.lnkbls ["defined-device-node-in-props"].properties ["node.id"]
+      }
+      tu.createStreamNode ("playback", props)
+    elseif tu.linkables_ready () and tu.lnkbls ["stream-node"] then
+      -- when "stream-node" linkable is ready
+      tu.set_target_in_metadata ("target.object", "defined-device-node-in-metadata")
     end
   end
 }:register ()
@@ -57,9 +65,9 @@ SimpleEventHook {
     local link = pu.lookupLink (si.id, si_flags.peer_id)
     assert (link ~= nil)
     assert (si_props ["node.name"] == "stream-node")
-    assert (target.properties ["node.name"] == "defined-device-node-in-metadata")
     assert ((link:get_active_features () & Feature.SessionItem.ACTIVE) ~= 0)
-
+    if (target.properties ["node.name"] == "defined-device-node-in-metadata") then
       Script:finish_activation ()
     end
+  end
 }:register ()

tests/scripts/scripts/17-test-linking-defined-device-node-target-object-int-metadata-capture.lua

@@ -12,9 +12,8 @@ tu.createDeviceNode ("default-device-node", "Audio/Source")
 tu.createDeviceNode ("defined-device-node-in-props", "Audio/Source")
 tu.createDeviceNode ("defined-device-node-in-metadata", "Audio/Source")
 
-tu.createStreamNode ("stream-node")
-
--- hook to selet defined target
+-- hook to create stream node, stream is created after the device nodes are
+-- ready
 SimpleEventHook {
   name = "linkable-added@test-linking",
   after = "linkable-added@test-utils-linking",
@@ -27,9 +26,18 @@ SimpleEventHook {
     },
   },
   execute = function (event)
-    if tu.linkables_ready () then
-      tu.set_target_in_stream ("target.object", "defined-device-node-in-props")
-      tu.set_target_in_metadata ("target.node", "defined-device-node-in-metadata")
+    local lnkbl = event:get_subject ()
+    local name = lnkbl.properties ["node.name"]
+
+    if tu.linkables_ready () and name ~= "stream-node" then
+      -- all linkables created execept stream-node
+      local props = {
+        ["target.object"] = tu.lnkbls ["defined-device-node-in-props"].properties ["node.id"]
+      }
+      tu.createStreamNode ("capture", props)
+    elseif tu.linkables_ready () and tu.lnkbls ["stream-node"] then
+      -- when "stream-node" linkable is ready
+      tu.set_target_in_metadata ("target.object", "defined-device-node-in-metadata")
     end
   end
 }:register ()