Add a "highlightSeriesBackgroundColor" option

[dygraphs.git] / auto_tests / tests / highlight_series_background.js

diff --git a/auto_tests/tests/highlight_series_background.js b/auto_tests/tests/highlight_series_background.js
new file mode 100644 (file)
index 0000000..aedc8ed
--- /dev/null
+++ b/auto_tests/tests/highlight_series_background.js
@@ -0,0 +1,109 @@
+/**
+ * @fileoverview Tests for the highlightSeriesBackgroundAlpha and highlightSeriesBackgroundColor options.
+ * @author sergeyslepian@gmail.com
+ */
+
+describe("highlight-series-background", function() {
+
+  beforeEach(function () {
+    document.body.innerHTML = "<div id='graph'></div>";
+  });
+
+  afterEach(function () {
+  });
+
+  function setupGraph(highlightSeriesBackgroundAlpha, highlightSeriesBackgroundColor) {
+    var opts = {
+      width: 480,
+      height: 320,
+      labels: ['x', 'y'],
+      legend: 'always',
+      highlightSeriesOpts: {
+        strokeWidth: 1,
+        strokeBorderWidth: 1,
+        highlightCircleSize: 1
+      }
+    };
+
+    if(highlightSeriesBackgroundAlpha !== undefined) opts.highlightSeriesBackgroundAlpha = highlightSeriesBackgroundAlpha;
+    if(highlightSeriesBackgroundColor !== undefined) opts.highlightSeriesBackgroundColor = highlightSeriesBackgroundColor;
+
+    var data = [];
+    for (var j = 0; j < 10; j++) {
+      data.push([j, 0]);
+    }
+
+    var graph = document.getElementById("graph");
+    return new Dygraph(graph, data, opts);
+  }
+
+  it('testDefaultHighlight', function(done) {
+    var graph = setupGraph();
+
+    assert.deepEqual(Util.samplePixel(graph.canvas_, 100, 100), [0,0,0,0]);
+
+    graph.setSelection(0, 'y', true);
+
+    // handle background color fade-in time
+    setTimeout(function() {
+      assert.deepEqual(Util.samplePixel(graph.canvas_, 100, 100), [255,255,255,127]);
+      done();
+    }, 1000);
+  });
+
+  it('testNoHighlight', function(done) {
+    var graph = setupGraph(1);
+
+    assert.deepEqual(Util.samplePixel(graph.canvas_, 100, 100), [0,0,0,0]);
+
+    graph.setSelection(0, 'y', true);
+
+    // handle background color fade-in time
+    setTimeout(function() {
+      assert.deepEqual(Util.samplePixel(graph.canvas_, 100, 100), [0,0,0,0]);
+      done();
+    }, 1000);
+  });
+
+  it('testCustomHighlightColor', function(done) {
+    var graph = setupGraph(undefined, 'rgb(0,255,255)');
+
+    assert.deepEqual(Util.samplePixel(graph.canvas_, 100, 100), [0,0,0,0]);
+
+    graph.setSelection(0, 'y', true);
+
+    // handle background color fade-in time
+    setTimeout(function() {
+      assert.deepEqual(Util.samplePixel(graph.canvas_, 100, 100), [0,255,255,127]);
+      done();
+    }, 1000);
+  });
+
+  it('testCustomHighlightAlpha', function(done) {
+    var graph = setupGraph(0.3);
+
+    assert.deepEqual(Util.samplePixel(graph.canvas_, 100, 100), [0,0,0,0]);
+
+    graph.setSelection(0, 'y', true);
+
+    // handle background color fade-in time
+    setTimeout(function() {
+      assert.deepEqual(Util.samplePixel(graph.canvas_, 100, 100), [255,255,255,179]);
+      done();
+    }, 1000);
+  });
+
+  it('testCustomHighlightColorAndAlpha', function(done) {
+    var graph = setupGraph(0.7,'rgb(255,0,0)');
+
+    assert.deepEqual(Util.samplePixel(graph.canvas_, 100, 100), [0,0,0,0]);
+
+    graph.setSelection(0, 'y', true);
+
+    // handle background color fade-in time
+    setTimeout(function() {
+      assert.deepEqual(Util.samplePixel(graph.canvas_, 100, 100), [255,0,0,76]);
+      done();
+    }, 1000);
+  });
+});
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