From 2113c749b1e9f0b144dba508ad3bafa7cba1f9a0 Mon Sep 17 00:00:00 2001
From: Marc Jansen <jansen@terrestris.de>
Date: Sun, 6 Mar 2016 15:07:24 +0100
Subject: [PATCH] Add basic tests for ol.geom.flat.length methods

---
 test/spec/ol/geom/flat/lengthflatgeom.test.js | 94 +++++++++++++++++++
 1 file changed, 94 insertions(+)
 create mode 100644 test/spec/ol/geom/flat/lengthflatgeom.test.js

diff --git a/test/spec/ol/geom/flat/lengthflatgeom.test.js b/test/spec/ol/geom/flat/lengthflatgeom.test.js
new file mode 100644
index 0000000000..fa1dfc7f3b
--- /dev/null
+++ b/test/spec/ol/geom/flat/lengthflatgeom.test.js
@@ -0,0 +1,94 @@
+goog.provide('ol.test.geom.flat.length');
+
+describe('ol.geom.flat.length', function() {
+
+  describe('ol.geom.flat.length.lineString', function() {
+
+    describe('stride = 2', function() {
+      var flatCoords = [0, 0, 1, 0, 1, 1, 0, 1];
+      var stride = 2;
+
+      it('calculates the total length of a lineString', function() {
+        var offset = 0;
+        var end = 8;
+        var expected = 3;
+        var got = ol.geom.flat.length.lineString(flatCoords, offset, end, stride);
+        expect(got).to.be(expected);
+      });
+
+      it('calculates a partwise length of a lineString (offset)', function() {
+        var offset = 2;
+        var end = 8;
+        var expected = 2;
+        var got = ol.geom.flat.length.lineString(flatCoords, offset, end, stride);
+        expect(got).to.be(expected);
+      });
+
+      it('calculates a partwise length of a lineString (end)', function() {
+        var offset = 0;
+        var end = 4;
+        var expected = 1;
+        var got = ol.geom.flat.length.lineString(flatCoords, offset, end, stride);
+        expect(got).to.be(expected);
+      });
+
+    });
+
+    describe('stride = 3', function() {
+      var flatCoords = [0, 0, 42, 1, 0, 42, 1, 1, 42, 0, 1, 42];
+      var stride = 3;
+
+      it('calculates the total length of a lineString', function() {
+        var offset = 0;
+        var end = 12;
+        var expected = 3;
+        var got = ol.geom.flat.length.lineString(flatCoords, offset, end, stride);
+        expect(got).to.be(expected);
+      });
+
+      it('calculates a partwise length of a lineString (offset)', function() {
+        var offset = 3;
+        var end = 12;
+        var expected = 2;
+        var got = ol.geom.flat.length.lineString(flatCoords, offset, end, stride);
+        expect(got).to.be(expected);
+      });
+
+      it('calculates a partwise length of a lineString (end)', function() {
+        var offset = 0;
+        var end = 6;
+        var expected = 1;
+        var got = ol.geom.flat.length.lineString(flatCoords, offset, end, stride);
+        expect(got).to.be(expected);
+      });
+
+    });
+  });
+
+  describe('ol.geom.flat.length.linearRing', function() {
+
+    it('calculates the total length of a simple linearRing', function() {
+      var flatCoords = [0, 0, 1, 0, 1, 1, 0, 1];
+      var stride = 2;
+      var offset = 0;
+      var end = 8;
+      var expected = 4;
+      var got = ol.geom.flat.length.linearRing(flatCoords, offset, end, stride);
+      expect(got).to.be(expected);
+    });
+
+    it('calculates the total length of a figure-8 linearRing', function() {
+      var flatCoords = [0, 0, 1, 0, 1, 1, 0, 1, 0, -1, -1, -1, -1, 0];
+      var stride = 2;
+      var offset = 0;
+      var end = 14;
+      var expected = 8;
+      var got = ol.geom.flat.length.linearRing(flatCoords, offset, end, stride);
+      expect(got).to.be(expected);
+    });
+
+  });
+
+});
+
+goog.require('ol.geom.flat.length');