test for levelgraph#197

.gitignore

@@ -17,5 +17,6 @@ npm-debug.log
 docs
 .DS_Store
 coverage
+db_test
 
 package-lock.json

CHANGELOG.md

@@ -0,0 +1,15 @@
+# level has been upgraded
+- https://github.com/levelgraph/levelgraph-jsonld/pull/77
+
+```
+npm outdated
+Package          Current  Wanted  Latest  Location  Depended by
+callback-stream  MISSING   1.1.0   1.1.0  -         levelgraph
+inherits         MISSING   2.0.4   2.0.4  -         levelgraph
+level-ws         MISSING   3.0.0   4.0.0  -         levelgraph
+lodash.keys      MISSING   4.2.0   4.2.0  -         levelgraph
+pump             MISSING   3.0.0   3.0.0  -         levelgraph
+readable-stream  MISSING   4.4.0   4.4.0  -         levelgraph
+steed            MISSING   1.1.3   1.1.3  -         levelgraph
+xtend            MISSING   4.0.2   4.0.2  -         levelgraph
+```

package.json

@@ -58,7 +58,7 @@
   "dependencies": {
     "callback-stream": "^1.1.0",
     "inherits": "^2.0.4",
-    "level-ws": "^3.0.0",
+    "level-ws": "^4.0.0",
     "lodash.keys": "^4.2.0",
     "pump": "^3.0.0",
     "readable-stream": "^4.0.0",

test/persist_properties_spec copy.js

@@ -0,0 +1,33 @@
+var levelgraph = require('../lib/levelgraph')
+// according to https://github.com/Level/level/blob/master/UPGRADING.md
+const { Level } = require('level')
+
+describe('a basic triple store', function() {
+
+  var db;
+
+  beforeEach(function() {
+    var level      = require('level'),
+    yourDB = new Level('./db_test', { valueEncoding: 'json' })
+    db         = levelgraph(yourDB);
+  });
+
+  afterEach(function(done) {
+    db.close(done);
+  });
+
+  it('persist, should put some more data inside a triple', function(done) {
+    var triple = { subject: 'a', predicate: 'b', object: 'c', 'someStuff': 42 };
+    db.put(triple, done);
+  });
+
+  it('persist, should return the inserted data', function(done) {
+    var triple = { subject: 'a', predicate: 'b', object: 'c', 'someStuff': 42 };
+    db.put(triple, function() {
+      db.get({ subject: 'a' }, function(err, list) {
+        expect(list).to.eql([triple]);
+        done();
+      });
+    });
+  });
+});