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Allow nested msg properties in msg/flow/global expressions (#2822)

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* Allow nested msg properties in msg/flow/global expressions

* Remove typo in RED.utils

Co-authored-by: Nick O'Leary <knolleary@users.noreply.github.com>
This commit is contained in:
Nick O'Leary
2021-01-27 20:32:52 +00:00
committed by GitHub
parent 34ef055d7b
commit 438d51d26e
6 changed files with 342 additions and 31 deletions
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107
test/nodes/core/function/15-change_spec.js
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@@ -98,7 +98,7 @@ describe('change Node', function() {
});
describe('#set' , function() {
it('sets the value of the message property', function(done) {
var flow = [{"id":"changeNode1","type":"change","action":"replace","property":"payload","from":"","to":"changed","reg":false,"name":"changeNode","wires":[["helperNode1"]]},
{id:"helperNode1", type:"helper", wires:[]}];
@@ -672,6 +672,111 @@ describe('change Node', function() {
});
});
it('sets the value of a message property using a nested property', function(done) {
var flow = [{"id":"changeNode1","type":"change","name":"","rules":[{"t":"set","p":"payload","pt":"msg","to":"lookup[msg.topic]","tot":"msg"}],"action":"","property":"","from":"","to":"","reg":false,"wires":[["helperNode1"]]},
{id:"helperNode1", type:"helper", wires:[]}];
helper.load(changeNode, flow, function() {
var changeNode1 = helper.getNode("changeNode1");
var helperNode1 = helper.getNode("helperNode1");
helperNode1.on("input", function(msg) {
try {
msg.payload.should.equal(2);
done();
} catch(err) {
done(err);
}
});
changeNode1.receive({payload:"",lookup:{a:1,b:2},topic:"b"});
});
});
it('sets the value of a nested message property using a message property', function(done) {
var flow = [{"id":"changeNode1","type":"change","name":"","rules":[{"t":"set","p":"lookup[msg.topic]","pt":"msg","to":"payload","tot":"msg"}],"action":"","property":"","from":"","to":"","reg":false,"wires":[["helperNode1"]]},
{id:"helperNode1", type:"helper", wires:[]}];
helper.load(changeNode, flow, function() {
var changeNode1 = helper.getNode("changeNode1");
var helperNode1 = helper.getNode("helperNode1");
helperNode1.on("input", function(msg) {
try {
msg.lookup.b.should.equal("newValue");
done();
} catch(err) {
done(err);
}
});
var msg = {
payload: "newValue",
lookup:{a:1,b:2},
topic:"b"
}
changeNode1.receive(msg);
});
});
it('sets the value of a message property using a nested property in flow context', function(done) {
var flow = [{"id":"changeNode1","type":"change","name":"","rules":[{"t":"set","p":"payload","pt":"msg","to":"lookup[msg.topic]","tot":"flow"}],"action":"","property":"","from":"","to":"","reg":false,"wires":[["helperNode1"]],"z":"flow"},
{id:"helperNode1", type:"helper", wires:[]}];
helper.load(changeNode, flow, function() {
var changeNode1 = helper.getNode("changeNode1");
var helperNode1 = helper.getNode("helperNode1");
helperNode1.on("input", function(msg) {
try {
msg.payload.should.eql(2);
done();
} catch(err) {
done(err);
}
});
changeNode1.context().flow.set("lookup",{a:1, b:2});
changeNode1.receive({payload: "", topic: "b"});
});
})
it('sets the value of a message property using a nested property in flow context', function(done) {
var flow = [{"id":"changeNode1","type":"change","name":"","rules":[{"t":"set","p":"payload","pt":"msg","to":"lookup[msg.topic]","tot":"flow"}],"action":"","property":"","from":"","to":"","reg":false,"wires":[["helperNode1"]],"z":"flow"},
{id:"helperNode1", type:"helper", wires:[]}];
helper.load(changeNode, flow, function() {
var changeNode1 = helper.getNode("changeNode1");
var helperNode1 = helper.getNode("helperNode1");
helperNode1.on("input", function(msg) {
try {
msg.payload.should.eql(2);
done();
} catch(err) {
done(err);
}
});
changeNode1.context().flow.set("lookup",{a:1, b:2});
changeNode1.receive({payload: "", topic: "b"});
});
})
it('sets the value of a nested flow context property using a message property', function(done) {
var flow = [{"id":"changeNode1","type":"change","name":"","rules":[{"t":"set","p":"lookup[msg.topic]","pt":"flow","to":"payload","tot":"msg"}],"action":"","property":"","from":"","to":"","reg":false,"wires":[["helperNode1"]],"z":"flow"},
{id:"helperNode1", type:"helper", wires:[]}];
helper.load(changeNode, flow, function() {
var changeNode1 = helper.getNode("changeNode1");
var helperNode1 = helper.getNode("helperNode1");
helperNode1.on("input", function(msg) {
try {
msg.payload.should.eql("newValue");
changeNode1.context().flow.get("lookup.b").should.eql("newValue");
done();
} catch(err) {
done(err);
}
});
changeNode1.context().flow.set("lookup",{a:1, b:2});
changeNode1.receive({payload: "newValue", topic: "b"});
});
})
});
describe('#change', function() {
it('changes the value of the message property', function(done) {