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[Plot] Complete specs for plot

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Complete specs for transitioned plot view, WTD-533.
This commit is contained in:
Victor Woeltjen
2014-12-02 11:08:21 -08:00
parent 2f475fc17a
commit 870172ec6f
5 changed files with 253 additions and 7 deletions
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97
platform/features/plot/test/GLChartSpec.js
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@ -9,6 +9,103 @@ define(
"use strict";
describe("A WebGL chart", function () {
var mockCanvas,
mockGL,
glChart;
beforeEach(function () {
mockCanvas = jasmine.createSpyObj("canvas", [ "getContext" ]);
mockGL = jasmine.createSpyObj(
"gl",
[
"createShader",
"compileShader",
"shaderSource",
"attachShader",
"createProgram",
"linkProgram",
"useProgram",
"enableVertexAttribArray",
"getAttribLocation",
"getUniformLocation",
"createBuffer",
"lineWidth",
"enable",
"blendFunc",
"viewport",
"clear",
"uniform2fv",
"uniform4fv",
"bufferData",
"bindBuffer",
"vertexAttribPointer",
"drawArrays"
]
);
mockGL.ARRAY_BUFFER = "ARRAY_BUFFER";
mockGL.DYNAMIC_DRAW = "DYNAMIC_DRAW";
mockGL.TRIANGLE_FAN = "TRIANGLE_FAN";
mockGL.LINE_STRIP = "LINE_STRIP";
// Echo back names for uniform locations, so we can
// test which of these are set for certain operations.
mockGL.getUniformLocation.andCallFake(function (a, name) {
return name;
});
mockCanvas.getContext.andReturn(mockGL);
glChart = new GLChart(mockCanvas);
});
it("allows the canvas to be cleared", function () {
glChart.clear();
expect(mockGL.clear).toHaveBeenCalled();
});
it("doees not construct if WebGL is unavailable", function () {
mockCanvas.getContext.andReturn(undefined);
expect(function () {
return new GLChart(mockCanvas);
}).toThrow();
});
it("allows dimensions to be set", function () {
glChart.setDimensions([120, 120], [0, 10]);
expect(mockGL.uniform2fv)
.toHaveBeenCalledWith("uDimensions", [120, 120]);
expect(mockGL.uniform2fv)
.toHaveBeenCalledWith("uOrigin", [0, 10]);
});
it("allows lines to be drawn", function () {
var testBuffer = [ 0, 1, 3, 8 ],
testColor = [ 0.25, 0.33, 0.66, 1.0 ],
testPoints = 2;
glChart.drawLine(testBuffer, testColor, testPoints);
expect(mockGL.bufferData).toHaveBeenCalledWith(
mockGL.ARRAY_BUFFER,
testBuffer,
mockGL.DYNAMIC_DRAW
);
expect(mockGL.uniform4fv)
.toHaveBeenCalledWith("uColor", testColor);
expect(mockGL.drawArrays)
.toHaveBeenCalledWith("LINE_STRIP", 0, testPoints);
});
it("allows squares to be drawn", function () {
var testMin = [0, 1],
testMax = [10, 10],
testColor = [ 0.25, 0.33, 0.66, 1.0 ];
glChart.drawSquare(testMin, testMax, testColor);
expect(mockGL.uniform4fv)
.toHaveBeenCalledWith("uColor", testColor);
expect(mockGL.drawArrays)
.toHaveBeenCalledWith("TRIANGLE_FAN", 0, 4);
});
});
}
);