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Code Issues Projects Releases Packages Wiki Activity Actions 10

Use Q/promises to remove callback nesting from test harness.

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David Anson 2015-03-01 22:15:02 -08:00
parent a2d42b6208
commit d2e38c1646
2 changed files with 39 additions and 33 deletions
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69
test/markdownlint-test.js
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@ -3,16 +3,35 @@
var fs = require("fs");
var path = require("path");
var markdownlint = require("../lib/markdownlint");
var encodingUtf8 = { "encoding": "utf8" };
var Q = require("q");
function createTestForFile(file) {
return function testForFile(test) {
test.expect(4);
fs.readFile(file, encodingUtf8, function readFileCallback(err, contents) {
test.ifError(err);
var lines = contents.split(/\r\n|\r|\n/g);
function lintFile(config) {
test.expect(1);
var configFile = file.replace(/\.md$/, ".json");
var actualPromise = Q.nfcall(fs.stat, configFile)
.then(
function configFileExists() {
return Q.nfcall(fs.readFile, configFile, { "encoding": "utf8" })
.then(
function configFileContents(contents) {
return JSON.parse(contents);
});
},
function noConfigFile() {
return null;
})
.then(
function lintWithConfig(config) {
return Q.nfcall(markdownlint, {
"files": [ file ],
"config": config
});
});
var expectedPromise = Q.nfcall(fs.readFile, file, { "encoding": "utf8" })
.then(
function fileContents(contents) {
var lines = contents.split(/\r\n|\r|\n/g);
var results = {};
lines.forEach(function forLine(line, lineNum) {
var match = line.match(/\{(MD\d+)(?::(\d+))?\}/);
@ -23,32 +42,18 @@ function createTestForFile(file) {
results[rule] = errors;
}
});
markdownlint({
"files": [ file ],
"config": config
}, function markdownlintCallback(errr, actual) {
test.ifError(errr);
var expected = {};
expected[file] = results;
test.deepEqual(actual, expected, "Line numbers are not correct.");
test.done();
});
}
var configFile = file.replace(/\.md$/, ".json");
fs.stat(configFile, function statCallback(errr /*, stats*/) {
if (errr) {
test.ok(true, "Replacement for ifError of readFile");
lintFile();
} else {
fs.readFile(configFile, encodingUtf8,
function readFile(errrr, configContents) {
test.ifError(errrr);
var config = JSON.parse(configContents);
lintFile(config);
});
}
return results;
});
});
Q.all([ actualPromise, expectedPromise ])
.then(
function compareResults(fulfillments) {
var actual = fulfillments[0];
var results = fulfillments[1];
var expected = {};
expected[file] = results;
test.deepEqual(actual, expected, "Line numbers are not correct.");
})
.done(test.done, test.done);
};
}