From 86c4bc910549b48761a1037d7948be88664fa987 Mon Sep 17 00:00:00 2001
From: tyr <tyr.asd@gmail.com>
Date: Thu, 20 Feb 2014 18:42:54 +0100
Subject: [PATCH] add tests for "restoring from v3 JSON" (core/history.js)

---
 test/spec/core/history.js | 67 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 67 insertions(+)

diff --git a/test/spec/core/history.js b/test/spec/core/history.js
index 6c7a21496..bbffe247e 100644
--- a/test/spec/core/history.js
+++ b/test/spec/core/history.js
@@ -350,5 +350,72 @@ describe("iD.History", function () {
             expect(history.imageryUsed()).to.eql(["Bing"]);
             expect(iD.Entity.id.next).to.eql({node: -1, way: -2, relation: -3});
         });
+
+        it("restores from v3 JSON (creation)", function() {
+            var json = {
+                "version": 3,
+                "entities": [
+                    {"loc": [1, 2], "id": "n-1"}
+                ],
+                "baseEntities": [],
+                "stack": [
+                    {},
+                    {"modified": ["n-1v0"], "imageryUsed": ["Bing"], "annotation": "Added a point."}
+                ],
+                "nextIDs": {"node": -2, "way": -1, "relation": -1},
+                "index": 1
+            };
+            history.fromJSON(JSON.stringify(json));
+            expect(history.graph().entity('n-1')).to.eql(iD.Node({id: 'n-1', loc: [1, 2]}));
+            expect(history.undoAnnotation()).to.eql("Added a point.");
+            expect(history.imageryUsed()).to.eql(["Bing"]);
+            expect(iD.Entity.id.next).to.eql({node: -2, way: -1, relation: -1});
+            expect(history.difference().created().length).to.eql(1);
+        });
+
+        it("restores from v3 JSON (modification)", function() {
+            var json = {
+                "version": 3,
+                "entities": [
+                    {"loc": [1, 2], "id": "n-1"},
+                    {"loc": [2, 3], "id": "n-1", "v": 1}
+                ],
+                "baseEntities": [{"loc": [1, 2], "id": "n-1"}],
+                "stack": [
+                    {},
+                    {"modified": ["n-1v0"], "imageryUsed": ["Bing"], "annotation": "Added a point."},
+                    {"modified": ["n-1v1"], "imageryUsed": ["Bing"], "annotation": "Moved a point."}
+                ],
+                "nextIDs": {"node": -2, "way": -1, "relation": -1},
+                "index": 2
+            };
+            history.fromJSON(JSON.stringify(json));
+            expect(history.graph().entity('n-1')).to.eql(iD.Node({id: 'n-1', loc: [2, 3], v: 1}));
+            expect(history.undoAnnotation()).to.eql("Moved a point.");
+            expect(history.imageryUsed()).to.eql(["Bing"]);
+            expect(iD.Entity.id.next).to.eql({node: -2, way: -1, relation: -1});
+            expect(history.difference().modified().length).to.eql(1);
+        });
+
+        it("restores from v3 JSON (deletion)", function() {
+            var json = {
+                "version": 3,
+                "entities": [],
+                "baseEntities": [],
+                "stack": [
+                    {},
+                    {"deleted": ["n1"], "imageryUsed": ["Bing"], "annotation": "Deleted a point."}
+                ],
+                "nextIDs": {"node": -1, "way": -2, "relation": -3},
+                "index": 1
+            };
+            history.fromJSON(JSON.stringify(json));
+            history.merge([iD.Node({id: 'n1'})]);
+            expect(history.graph().hasEntity('n1')).to.be.undefined;
+            expect(history.undoAnnotation()).to.eql("Deleted a point.");
+            expect(history.imageryUsed()).to.eql(["Bing"]);
+            expect(iD.Entity.id.next).to.eql({node: -1, way: -2, relation: -3});
+            expect(history.difference().deleted().length).to.eql(1);
+        });
     });
 });