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JavaScript

import { ShaderSource } from "../../Source/Cesium.js";
describe("Renderer/ShaderSource", function () {
var mockContext = {
webgl2: false,
};
it("combines #defines", function () {
var source = new ShaderSource({
defines: ["A", "B", ""],
});
var shaderText = source.createCombinedVertexShader(mockContext);
expect(shaderText).toContain("#define A");
expect(shaderText).toContain("#define B");
expect(shaderText.match(/#define/g).length).toEqual(2);
});
it("combines sources", function () {
var source = new ShaderSource({
sources: ["void func() {}", "void main() {}"],
});
var shaderText = source.createCombinedVertexShader(mockContext);
expect(shaderText).toContain("#line 0\nvoid func() {}");
expect(shaderText).toContain("#line 0\nvoid main() {}");
});
it("combines #defines and sources", function () {
var source = new ShaderSource({
defines: ["A", "B", ""],
sources: ["void func() {}", "void main() {}"],
});
var shaderText = source.createCombinedVertexShader(mockContext);
expect(shaderText).toContain("#define A");
expect(shaderText).toContain("#define B");
expect(shaderText.match(/#define/g).length).toEqual(2);
expect(shaderText).toContain("#line 0\nvoid func() {}");
expect(shaderText).toContain("#line 0\nvoid main() {}");
});
it("creates a pick shader with a uniform", function () {
var source = new ShaderSource({
sources: ["void main() { gl_FragColor = vec4(1.0); }"],
pickColorQualifier: "uniform",
});
var shaderText = source.createCombinedVertexShader(mockContext);
expect(shaderText).toContain("uniform vec4 czm_pickColor;");
expect(shaderText).toContain("gl_FragColor = czm_pickColor;");
});
it("creates a pick shader with a varying", function () {
var source = new ShaderSource({
sources: ["void main() { gl_FragColor = vec4(1.0); }"],
pickColorQualifier: "varying",
});
var shaderText = source.createCombinedVertexShader(mockContext);
expect(shaderText).toContain("varying vec4 czm_pickColor;");
expect(shaderText).toContain("gl_FragColor = czm_pickColor;");
});
it("throws with invalid qualifier", function () {
expect(function () {
return new ShaderSource({
pickColorQualifier: "const",
});
}).toThrowDeveloperError();
});
it("combines #version to shader", function () {
var source = new ShaderSource({
sources: ["#version 300 es\nvoid main() {gl_FragColor = vec4(1.0); }"],
});
var shaderText = source.createCombinedVertexShader(mockContext);
expect(shaderText).toStartWith("#version 300 es\n");
});
it("clones", function () {
var source = new ShaderSource({
defines: ["A"],
sources: ["void main() { gl_FragColor = vec4(1.0); }"],
pickColorQualifier: "varying",
includeBuiltIns: false,
});
var clone = source.clone();
expect(clone.defines).toBeDefined();
expect(clone.defines.length).toEqual(1);
expect(clone.defines[0]).toEqual(source.defines[0]);
expect(clone.sources).toBeDefined();
expect(clone.sources.length).toEqual(1);
expect(clone.sources[0]).toEqual(source.sources[0]);
expect(clone.pickColorQualifier).toEqual(source.pickColorQualifier);
expect(clone.includeBuiltIns).toEqual(source.includeBuiltIns);
});
});