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513 lines (447 loc) · 15.1 KB
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"use strict";
const should = require("should");
const sinon = require("sinon");
const MultiCompiler = require("../lib/MultiCompiler");
function CompilerEnvironment() {
const pluginEvents = [];
const runCallbacks = [];
const watchCallbacks = [];
this.getCompilerStub = function() {
return {
plugin: function(name, handler) {
pluginEvents.push({
name,
handler
});
},
run: function(callback) {
runCallbacks.push({
callback
});
},
watch: function(options, callback) {
watchCallbacks.push({
options,
callback
});
return this.name;
}
};
};
this.getPluginEventBindings = () => pluginEvents;
this.getRunCallbacks = () => runCallbacks;
this.getWatchCallbacks = () => watchCallbacks;
}
const createCompiler = function(overrides) {
const compilerEnvironment = new CompilerEnvironment();
return Object.assign({
outputPath: "/"
}, compilerEnvironment.getCompilerStub(), overrides);
};
const setupTwoCompilerEnvironment = function(env, compiler1Values, compiler2Values) {
const compilerEnvironment1 = new CompilerEnvironment();
const compilerEnvironment2 = new CompilerEnvironment();
const compilers = [
Object.assign({
name: "compiler1"
}, (compiler1Values || {}), compilerEnvironment1.getCompilerStub()),
Object.assign({
name: "compiler2"
}, (compiler2Values || {}), compilerEnvironment2.getCompilerStub())
];
env.myMultiCompiler = new MultiCompiler(compilers);
env.compiler1EventBindings = compilerEnvironment1.getPluginEventBindings();
env.compiler2EventBindings = compilerEnvironment2.getPluginEventBindings();
env.compiler1WatchCallbacks = compilerEnvironment1.getWatchCallbacks();
env.compiler2WatchCallbacks = compilerEnvironment2.getWatchCallbacks();
env.compiler1RunCallbacks = compilerEnvironment1.getRunCallbacks();
env.compiler2RunCallbacks = compilerEnvironment2.getRunCallbacks();
};
describe("MultiCompiler", () => {
let env;
beforeEach(() => env = {});
describe("constructor", () => {
describe("when provided an array of compilers", () => {
beforeEach(() => {
env.compilers = [createCompiler(), createCompiler()];
env.myMultiCompiler = new MultiCompiler(env.compilers);
});
it("sets the compilers property to the array", () => env.myMultiCompiler.compilers.should.be.exactly(env.compilers));
});
describe("when provided a compiler mapping", () => {
beforeEach(() => {
const compilers = {
compiler1: createCompiler(),
compiler2: createCompiler()
};
env.myMultiCompiler = new MultiCompiler(compilers);
});
it("sets the compilers property to an array of compilers", () => {
env.myMultiCompiler.compilers.should.deepEqual([
Object.assign({
name: "compiler1"
}, createCompiler()),
Object.assign({
name: "compiler2"
}, createCompiler())
]);
});
});
describe("defined properties", () => {
describe("outputFileSystem", () => {
beforeEach(() => {
env.compilers = [createCompiler(), createCompiler()];
env.myMultiCompiler = new MultiCompiler(env.compilers);
});
it("throws an error when reading the value", () => {
should(() => {
env.myMultiCompiler.outputFileSystem;
}).throw("Cannot read outputFileSystem of a MultiCompiler");
});
it("updates all compilers when setting the value", () => {
env.myMultiCompiler.outputFileSystem = "foo";
env.compilers[0].outputFileSystem.should.be.exactly("foo");
env.compilers[1].outputFileSystem.should.be.exactly("foo");
});
});
describe("inputFileSystem", () => {
beforeEach(() => {
env.compilers = [createCompiler(), createCompiler()];
env.myMultiCompiler = new MultiCompiler(env.compilers);
});
it("throws an error when reading the value", () => {
should(() => {
env.myMultiCompiler.inputFileSystem;
}).throw("Cannot read inputFileSystem of a MultiCompiler");
});
it("updates all compilers when setting the value", () => {
env.myMultiCompiler.inputFileSystem = "foo";
env.compilers[0].inputFileSystem.should.be.exactly("foo");
env.compilers[1].inputFileSystem.should.be.exactly("foo");
});
});
describe("outputPath", () => {
describe("when common path cannot be found and output path is absolute", () => {
beforeEach(() => {
env.compilers = [
createCompiler({
outputPath: "/foo/bar"
}),
createCompiler({
outputPath: "quux"
})
];
env.myMultiCompiler = new MultiCompiler(env.compilers);
});
it("returns the root path", () => env.myMultiCompiler.outputPath.should.be.exactly("/"));
});
describe("when common path cannot be found and output path is relative", () => {
beforeEach(() => {
env.compilers = [
createCompiler({
outputPath: "foo/bar/baz"
}),
createCompiler({
outputPath: "quux"
})
];
env.myMultiCompiler = new MultiCompiler(env.compilers);
});
it("returns the first segment of relative path", () =>
env.myMultiCompiler.outputPath.should.be.exactly("foo"));
});
describe("when common path can be found and output path is absolute", () => {
beforeEach(() => {
env.compilers = [
createCompiler({
outputPath: "/foo"
}),
createCompiler({
outputPath: "/foo/bar/baz"
})
];
env.myMultiCompiler = new MultiCompiler(env.compilers);
});
it("returns the shared path", () => env.myMultiCompiler.outputPath.should.be.exactly("/foo"));
});
describe("when common path can be found and output path is relative", () => {
beforeEach(() => {
env.compilers = [
createCompiler({
outputPath: "foo"
}),
createCompiler({
outputPath: "foo/bar/baz"
})
];
env.myMultiCompiler = new MultiCompiler(env.compilers);
});
it("returns the shared path", () => env.myMultiCompiler.outputPath.should.be.exactly("foo"));
});
});
});
describe("compiler events", () => {
beforeEach(() => setupTwoCompilerEnvironment(env));
it("binds two event handler", () => {
env.compiler1EventBindings.length.should.be.exactly(2);
env.compiler2EventBindings.length.should.be.exactly(2);
});
describe("done handler", () => {
beforeEach(() => {
env.doneEventBinding1 = env.compiler1EventBindings[0];
env.doneEventBinding2 = env.compiler2EventBindings[0];
});
it("binds to done event", () => env.doneEventBinding1.name.should.be.exactly("done"));
describe("when called for first compiler", () => {
beforeEach(() => {
env.mockDonePlugin = sinon.spy();
env.myMultiCompiler.plugin("done", env.mockDonePlugin);
env.doneEventBinding1.handler({
hash: "foo"
});
});
it("does not call the done plugin when not all compilers are finished", () =>
env.mockDonePlugin.callCount.should.be.exactly(0));
describe("and called for second compiler", () => {
beforeEach(() =>
env.doneEventBinding2.handler({
hash: "bar"
}));
it("calls the done plugin", () => env.mockDonePlugin.callCount.should.be.exactly(1));
});
});
});
describe("invalid handler", () => {
beforeEach(() => env.invalidEventBinding = env.compiler1EventBindings[1]);
it("binds to invalid event", () => env.invalidEventBinding.name.should.be.exactly("invalid"));
describe("when called", () => {
beforeEach(() => {
env.mockInvalidPlugin = sinon.spy();
env.myMultiCompiler.plugin("invalid", env.mockInvalidPlugin);
env.invalidEventBinding.handler();
});
it("calls the invalid plugin", () => env.mockInvalidPlugin.callCount.should.be.exactly(1));
});
});
});
});
describe("watch", () => {
describe("without compiler dependencies", () => {
beforeEach(() => {
setupTwoCompilerEnvironment(env);
env.callback = sinon.spy();
env.options = [{
testWatchOptions: true
}, {
testWatchOptions2: true
}];
env.result = env.myMultiCompiler.watch(env.options, env.callback);
});
it("returns a multi-watching object", () => {
const result = JSON.stringify(env.result);
result.should.be.exactly('{"watchings":["compiler1","compiler2"],"compiler":{"_plugins":{},"compilers":[{"name":"compiler1"},{"name":"compiler2"}]}}');
});
it("calls watch on each compiler with original options", () => {
env.compiler1WatchCallbacks.length.should.be.exactly(1);
env.compiler1WatchCallbacks[0].options.should.be.exactly(env.options[0]);
env.compiler2WatchCallbacks.length.should.be.exactly(1);
env.compiler2WatchCallbacks[0].options.should.be.exactly(env.options[1]);
});
it("calls the callback when all compilers watch", () => {
env.compiler1WatchCallbacks[0].callback(null, {
hash: "foo"
});
env.callback.callCount.should.be.exactly(0);
env.compiler2WatchCallbacks[0].callback(null, {
hash: "bar"
});
env.callback.callCount.should.be.exactly(1);
});
describe("on first run", () => {
describe("callback called with no compiler errors", () => {
beforeEach(() => env.compiler1WatchCallbacks[0].callback(new Error("Test error")));
it("has failure parameters", () => {
env.callback.callCount.should.be.exactly(1);
env.callback.getCall(0).args[0].should.be.Error();
should(env.callback.getCall(0).args[1]).be.undefined();
});
});
describe("callback called with no compiler errors", () => {
beforeEach(() =>
env.compiler1WatchCallbacks[0].callback(null, {
hash: "foo"
}));
it("does not call the callback", () => env.callback.callCount.should.be.exactly(0));
});
});
describe("on subsequent runs", () => {
describe("callback called with compiler errors", () => {
beforeEach(() => {
env.compiler1WatchCallbacks[0].callback(null, {
hash: "foo"
});
env.compiler2WatchCallbacks[0].callback(new Error("Test error"));
});
it("has failure parameters", () => {
env.callback.callCount.should.be.exactly(1);
env.callback.getCall(0).args[0].should.be.Error();
should(env.callback.getCall(0).args[1]).be.undefined();
});
});
describe("callback called with no compiler errors", () => {
beforeEach(() => {
env.compiler1WatchCallbacks[0].callback(null, {
hash: "foo"
});
env.compiler2WatchCallbacks[0].callback(null, {
hash: "bar"
});
});
it("has success parameters", () => {
env.callback.callCount.should.be.exactly(1);
should(env.callback.getCall(0).args[0]).be.Null();
const stats = JSON.stringify(env.callback.getCall(0).args[1]);
stats.should.be.exactly('{"stats":[{"hash":"foo"},{"hash":"bar"}],"hash":"foobar"}');
});
});
});
});
describe("with compiler dependencies", () => {
beforeEach(() => {
setupTwoCompilerEnvironment(env, {
name: "compiler1",
dependencies: ["compiler2"]
}, {
name: "compiler2"
});
env.callback = sinon.spy();
env.options = [{
testWatchOptions: true
}, {
testWatchOptions2: true
}];
env.result = env.myMultiCompiler.watch(env.options, env.callback);
});
it("calls run on each compiler in dependency order", () => {
env.compiler1WatchCallbacks.length.should.be.exactly(0);
env.compiler2WatchCallbacks.length.should.be.exactly(1);
env.compiler2WatchCallbacks[0].options.should.be.exactly(env.options[1]);
env.compiler2WatchCallbacks[0].callback(null, {
hash: "bar"
});
env.compiler1WatchCallbacks.length.should.be.exactly(1);
env.compiler1WatchCallbacks[0].options.should.be.exactly(env.options[0]);
});
it("calls the callback when all compilers run in dependency order", () => {
env.compiler2WatchCallbacks[0].callback(null, {
hash: "bar"
});
env.callback.callCount.should.be.exactly(0);
env.compiler1WatchCallbacks[0].callback(null, {
hash: "foo"
});
env.callback.callCount.should.be.exactly(1);
});
});
});
describe("run", () => {
describe("without compiler dependencies", () => {
beforeEach(() => {
setupTwoCompilerEnvironment(env);
env.callback = sinon.spy();
env.myMultiCompiler.run(env.callback);
});
it("calls run on each compiler", () => {
env.compiler1RunCallbacks.length.should.be.exactly(1);
env.compiler2RunCallbacks.length.should.be.exactly(1);
});
it("calls the callback when all compilers run", () => {
env.compiler1RunCallbacks[0].callback(null, {
hash: "foo"
});
env.callback.callCount.should.be.exactly(0);
env.compiler2RunCallbacks[0].callback(null, {
hash: "bar"
});
env.callback.callCount.should.be.exactly(1);
});
describe("callback called with no compiler errors", () => {
beforeEach(() => {
env.compiler1RunCallbacks[0].callback(null, {
hash: "foo"
});
env.compiler2RunCallbacks[0].callback(null, {
hash: "bar"
});
});
it("has success parameters", () => {
env.callback.callCount.should.be.exactly(1);
should(env.callback.getCall(0).args[0]).be.Null();
const stats = JSON.stringify(env.callback.getCall(0).args[1]);
stats.should.be.exactly('{"stats":[{"hash":"foo"},{"hash":"bar"}],"hash":"foobar"}');
});
});
describe("callback called with compiler errors", () => {
beforeEach(() => {
env.compiler1RunCallbacks[0].callback(null, {
hash: "foo"
});
env.compiler2RunCallbacks[0].callback(new Error("Test error"));
});
it("has failure parameters", () => {
env.callback.callCount.should.be.exactly(1);
env.callback.getCall(0).args[0].should.be.Error();
should(env.callback.getCall(0).args[1]).be.undefined();
});
});
});
describe("with compiler dependencies", () => {
beforeEach(() => {
setupTwoCompilerEnvironment(env, {
name: "compiler1",
dependencies: ["compiler2"]
}, {
name: "compiler2"
});
env.callback = sinon.spy();
env.myMultiCompiler.run(env.callback);
});
it("calls run on each compiler in dependency order", () => {
env.compiler1RunCallbacks.length.should.be.exactly(0);
env.compiler2RunCallbacks.length.should.be.exactly(1);
env.compiler2RunCallbacks[0].callback(null, {
hash: "bar"
});
env.compiler1RunCallbacks.length.should.be.exactly(1);
});
it("calls the callback when all compilers run in dependency order", () => {
env.compiler2RunCallbacks[0].callback(null, {
hash: "bar"
});
env.callback.callCount.should.be.exactly(0);
env.compiler1RunCallbacks[0].callback(null, {
hash: "foo"
});
env.callback.callCount.should.be.exactly(1);
});
});
});
describe("purgeInputFileSystem", () => {
beforeEach(() => {
env.compilers = [
Object.assign({
inputFileSystem: {
purge: sinon.spy()
}
}, createCompiler()),
createCompiler()
];
env.myMultiCompiler = new MultiCompiler(env.compilers);
env.myMultiCompiler.purgeInputFileSystem();
});
it("calls the compilers purge if available", () => {
const purgeSpy = env.compilers[0].inputFileSystem.purge;
purgeSpy.callCount.should.be.exactly(1);
});
});
});
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