webpack/test/NormalModule.unittest.js

450 lines
13 KiB
JavaScript

/* globals describe, it, beforeEach, afterEach */
"use strict";
require("should");
const sinon = require("sinon");
const NormalModule = require("../lib/NormalModule");
const NullDependency = require("../lib/dependencies/NullDependency");
const SourceMapSource = require("webpack-sources").SourceMapSource;
const OriginalSource = require("webpack-sources").OriginalSource;
const RawSource = require("webpack-sources").RawSource;
describe("NormalModule", function() {
let normalModule;
let request;
let userRequest;
let rawRequest;
let loaders;
let resource;
let parser;
beforeEach(function() {
request = "some/request";
userRequest = "some/userRequest";
rawRequest = "some/rawRequest";
loaders = [];
resource = "some/resource";
parser = {
parse() {}
};
normalModule = new NormalModule(
request,
userRequest,
rawRequest,
loaders,
resource,
parser
);
normalModule.cacheable = true;
});
describe("#identifier", function() {
it("returns an identifier for this module", function() {
normalModule.identifier().should.eql(request);
});
it("returns an identifier from toString", function() {
normalModule.debugId = 1000;
normalModule.toString().should.eql("Module[1000]");
normalModule.id = 1;
normalModule.toString().should.eql("Module[1]");
});
});
describe("#readableIdentifier", function() {
it("calls the given requestShortener with the user request", function() {
const spy = sinon.spy();
normalModule.readableIdentifier({
shorten: spy
});
spy.callCount.should.eql(1);
spy.args[0][0].should.eql(userRequest);
});
});
describe("#libIdent", function() {
it("contextifies the userRequest of the module", function() {
normalModule.libIdent({
context: "some/context"
}).should.eql("../userRequest");
});
describe("given a userRequest containing loaders", function() {
beforeEach(function() {
userRequest = "some/userRequest!some/other/userRequest!some/thing/is/off/here";
normalModule = new NormalModule(
request,
userRequest,
rawRequest,
loaders,
resource,
parser
);
});
it("contextifies every path in the userRequest", function() {
normalModule.libIdent({
context: "some/context"
}).should.eql("../userRequest!../other/userRequest!../thing/is/off/here");
});
});
describe("given a userRequest containing query parameters", function() {
it("ignores paths in query parameters", function() {
userRequest = "some/context/loader?query=foo\\bar&otherPath=testpath/other";
normalModule = new NormalModule(
request,
userRequest,
rawRequest,
loaders,
resource,
parser
);
normalModule.libIdent({
context: "some/context",
}).should.eql("./loader?query=foo\\bar&otherPath=testpath/other");
});
});
});
describe("#nameForCondition", function() {
it("return the resource", function() {
normalModule.nameForCondition().should.eql(resource);
});
describe("given a resource containing a ?-sign", function() {
const baseResource = "some/resource";
beforeEach(function() {
resource = baseResource + "?some=query";
normalModule = new NormalModule(
request,
userRequest,
rawRequest,
loaders,
resource,
parser
);
});
it("return only the part before the ?-sign", function() {
normalModule.nameForCondition().should.eql(baseResource);
});
});
});
describe("#createSourceForAsset", function() {
let name;
let content;
let sourceMap;
beforeEach(function() {
name = "some name";
content = "some content";
sourceMap = "some sourcemap";
});
describe("given no sourcemap", function() {
it("returns a RawSource", function() {
normalModule.createSourceForAsset(name, content).should.be.instanceOf(RawSource);
});
});
describe("given a string as the sourcemap", function() {
it("returns a OriginalSource", function() {
normalModule.createSourceForAsset(name, content, sourceMap).should.be.instanceOf(OriginalSource);
});
});
describe("given a some other kind of sourcemap", function() {
beforeEach(function() {
sourceMap = () => {};
});
it("returns a SourceMapSource", function() {
normalModule.createSourceForAsset(name, content, sourceMap).should.be.instanceOf(SourceMapSource);
});
});
});
describe("#source", function() {
describe("without the module having any source", function() {
beforeEach(function() {
normalModule._source = null;
});
it("returns a Source containing an Error", function() {
normalModule.source().should.be.instanceOf(RawSource);
normalModule.source().source().should.eql("throw new Error('No source available');");
});
});
});
describe("#originalSource", function() {
let expectedSource = "some source";
beforeEach(function() {
normalModule._source = new RawSource(expectedSource);
});
it("returns an original Source", function() {
normalModule.originalSource().should.eql(normalModule._source);
});
});
describe("#updateHashWithSource", function() {
let hashSpy;
let hash;
beforeEach(function() {
hashSpy = sinon.spy();
hash = {
update: hashSpy
};
});
describe("without the module having any source", function() {
beforeEach(function() {
normalModule._source = null;
});
it("calls hash function with \"null\"", function() {
normalModule.updateHashWithSource(hash);
hashSpy.callCount.should.eql(1);
hashSpy.args[0][0].should.eql("null");
});
});
describe("without the module having source", function() {
let expectedSource = "some source";
beforeEach(function() {
normalModule._source = new RawSource(expectedSource);
});
it("calls hash function with \"source\" and then the actual source of the module", function() {
normalModule.updateHashWithSource(hash);
hashSpy.callCount.should.eql(2);
hashSpy.args[0][0].should.eql("source");
hashSpy.args[1][0].should.eql(expectedSource);
});
});
});
describe("#hasDependencies", function() {
it("returns true if has dependencies", function() {
normalModule.addDependency(new NullDependency());
normalModule.hasDependencies().should.eql(true);
});
it("returns false if has dependencies", function() {
normalModule.hasDependencies().should.eql(false);
});
});
describe("#needRebuild", function() {
let fileTimestamps;
let contextTimestamps;
let fileDependencies;
let contextDependencies;
let fileA;
let fileB;
function setDeps(
fileDependencies,
contextDependencies) {
normalModule.fileDependencies = fileDependencies;
normalModule.contextDependencies = contextDependencies;
}
beforeEach(function() {
fileA = "fileA";
fileB = "fileB";
fileDependencies = [fileA, fileB];
contextDependencies = [fileA, fileB];
fileTimestamps = {
[fileA]: 1,
[fileB]: 1,
};
contextTimestamps = {
[fileA]: 1,
[fileB]: 1,
};
normalModule.buildTimestamp = 2;
setDeps(fileDependencies, contextDependencies);
});
describe("given all timestamps are older than the buildTimestamp", function() {
it("returns false", function() {
normalModule.needRebuild(fileTimestamps, contextTimestamps).should.eql(false);
});
});
describe("given a file timestamp is newer than the buildTimestamp", function() {
beforeEach(function() {
fileTimestamps[fileA] = 3;
});
it("returns true", function() {
normalModule.needRebuild(fileTimestamps, contextTimestamps).should.eql(true);
});
});
describe("given a no file timestamp exists", function() {
beforeEach(function() {
fileTimestamps = {};
});
it("returns true", function() {
normalModule.needRebuild(fileTimestamps, contextTimestamps).should.eql(true);
});
});
describe("given a context timestamp is newer than the buildTimestamp", function() {
beforeEach(function() {
contextTimestamps[fileA] = 3;
});
it("returns true", function() {
normalModule.needRebuild(fileTimestamps, contextTimestamps).should.eql(true);
});
});
describe("given a no context timestamp exists", function() {
beforeEach(function() {
contextTimestamps = {};
});
it("returns true", function() {
normalModule.needRebuild(fileTimestamps, contextTimestamps).should.eql(true);
});
});
});
describe("#splitVariablesInUniqueNamedChunks", function() {
let variables;
beforeEach(function() {
variables = [{
name: "foo"
}, {
name: "bar"
}, {
name: "baz"
}, {
name: "some"
}, {
name: "more"
}];
});
describe("given an empty array of vars", function() {
it("returns an empty array", function() {
normalModule.splitVariablesInUniqueNamedChunks([]).should.eql([
[]
]);
});
});
describe("given an array of distrinct variables", function() {
it("returns an array containing an array containing the variables", function() {
normalModule.splitVariablesInUniqueNamedChunks(variables).should.eql([variables]);
});
});
describe("given an array with duplicate variables", function() {
it("returns several arrays each containing only distinct variable names", function() {
normalModule.splitVariablesInUniqueNamedChunks(variables.concat(variables)).should.eql([variables, variables]);
});
describe("and a duplicate as the last variable", function() {
it("returns correctly split distinct arrays", function() {
normalModule.splitVariablesInUniqueNamedChunks(variables.concat(variables).concat(variables[0])).should.eql([variables, variables, [variables[0]]]);
});
});
});
});
describe("#applyNoParseRule", function() {
let rule;
let content;
describe("given a string as rule", function() {
beforeEach(function() {
rule = "some-rule";
});
describe("and the content starting with the string specified in rule", function() {
beforeEach(function() {
content = rule + "some-content";
});
it("returns true", function() {
normalModule.shouldPreventParsing(rule, content).should.eql(true);
});
});
describe("and the content does not start with the string specified in rule", function() {
beforeEach(function() {
content = "some-content";
});
it("returns false", function() {
normalModule.shouldPreventParsing(rule, content).should.eql(false);
});
});
});
describe("given a regex as rule", function() {
beforeEach(function() {
rule = /some-rule/;
});
describe("and the content matches the rule", function() {
beforeEach(function() {
content = rule + "some-content";
});
it("returns true", function() {
normalModule.shouldPreventParsing(rule, content).should.eql(true);
});
});
describe("and the content does not match the rule", function() {
beforeEach(function() {
content = "some-content";
});
it("returns false", function() {
normalModule.shouldPreventParsing(rule, content).should.eql(false);
});
});
});
});
describe("#shouldPreventParsing", function() {
let applyNoParseRuleSpy;
beforeEach(function() {
applyNoParseRuleSpy = sinon.stub();
normalModule.applyNoParseRule = applyNoParseRuleSpy;
});
describe("given no noParseRule", function() {
it("returns false", function() {
normalModule.shouldPreventParsing().should.eql(false);
applyNoParseRuleSpy.callCount.should.eql(0);
});
});
describe("given a noParseRule", function() {
let returnValOfSpy;
beforeEach(function() {
returnValOfSpy = true;
applyNoParseRuleSpy.returns(returnValOfSpy);
});
describe("that is a string", function() {
it("calls and returns whatever applyNoParseRule returns", function() {
normalModule.shouldPreventParsing("some rule").should.eql(returnValOfSpy);
applyNoParseRuleSpy.callCount.should.eql(1);
});
});
describe("that is a regex", function() {
it("calls and returns whatever applyNoParseRule returns", function() {
normalModule.shouldPreventParsing("some rule").should.eql(returnValOfSpy);
applyNoParseRuleSpy.callCount.should.eql(1);
});
});
describe("that is an array", function() {
describe("of strings and or regexs", function() {
let someRules;
beforeEach(function() {
someRules = [
"some rule",
/some rule1/,
"some rule2",
];
});
describe("and none of them match", function() {
beforeEach(function() {
returnValOfSpy = false;
applyNoParseRuleSpy.returns(returnValOfSpy);
});
it("returns false", function() {
normalModule.shouldPreventParsing(someRules).should.eql(returnValOfSpy);
applyNoParseRuleSpy.callCount.should.eql(3);
});
});
describe("and the first of them matches", function() {
beforeEach(function() {
returnValOfSpy = true;
applyNoParseRuleSpy.returns(returnValOfSpy);
});
it("returns true", function() {
normalModule.shouldPreventParsing(someRules).should.eql(returnValOfSpy);
applyNoParseRuleSpy.callCount.should.eql(1);
});
});
describe("and the last of them matches", function() {
beforeEach(function() {
returnValOfSpy = true;
applyNoParseRuleSpy.onCall(0).returns(false);
applyNoParseRuleSpy.onCall(1).returns(false);
applyNoParseRuleSpy.onCall(2).returns(true);
});
it("returns true", function() {
normalModule.shouldPreventParsing(someRules).should.eql(returnValOfSpy);
applyNoParseRuleSpy.callCount.should.eql(3);
});
});
});
});
});
});
});