Add node tests

2021-04-28 15:00:04 -07:00
parent c301d2413b
commit 7b934a06be
61 changed files with 1216 additions and 449 deletions
@@ -0,0 +1,48 @@
+import expect from '../../../expect.js';
+import {lineStringIsClosed} from '../../../../../src/ol/geom/flat/topology.js';
+
+describe('ol/geom/flat/topology.js', function () {
+  describe('lineStringIsClosed', function () {
+    it('identifies closed lines aka boundaries', function () {
+      const flatCoordinates = [0, 0, 3, 0, 0, 3, 0, 0];
+      const isClosed = lineStringIsClosed(
+        flatCoordinates,
+        0,
+        flatCoordinates.length,
+        2
+      );
+      expect(isClosed).to.be(true);
+    });
+
+    it('identifies regular linestrings', function () {
+      const flatCoordinates = [0, 0, 3, 0, 0, 3, 5, 2];
+      const isClosed = lineStringIsClosed(
+        flatCoordinates,
+        0,
+        flatCoordinates.length,
+        2
+      );
+      expect(isClosed).to.be(false);
+    });
+
+    it('identifies degenerate boundaries', function () {
+      let flatCoordinates = [0, 0, 3, 0, 0, 0];
+      let isClosed = lineStringIsClosed(
+        flatCoordinates,
+        0,
+        flatCoordinates.length,
+        2
+      );
+      expect(isClosed).to.be(false);
+
+      flatCoordinates = [0, 0, 1, 1, 3, 3, 5, 5, 0, 0];
+      isClosed = lineStringIsClosed(
+        flatCoordinates,
+        0,
+        flatCoordinates.length,
+        2
+      );
+      expect(isClosed).to.be(false);
+    });
+  });
+});