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qwen/nodejs/node_modules/resolve/test/mock_sync.js

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+var path = require('path');
+var test = require('tape');
+var resolve = require('../');
+
+test('mock', function (t) {
+    t.plan(4);
+
+    var files = {};
+    files[path.resolve('/foo/bar/baz.js')] = 'beep';
+
+    var dirs = {};
+    dirs[path.resolve('/foo/bar')] = true;
+
+    function opts(basedir) {
+        return {
+            basedir: path.resolve(basedir),
+            isFile: function (file) {
+                return Object.prototype.hasOwnProperty.call(files, path.resolve(file));
+            },
+            isDirectory: function (dir) {
+                return !!dirs[path.resolve(dir)];
+            },
+            readFileSync: function (file) {
+                return files[path.resolve(file)];
+            },
+            realpathSync: function (file) {
+                return file;
+            }
+        };
+    }
+
+    t.equal(
+        resolve.sync('./baz', opts('/foo/bar')),
+        path.resolve('/foo/bar/baz.js')
+    );
+
+    t.equal(
+        resolve.sync('./baz.js', opts('/foo/bar')),
+        path.resolve('/foo/bar/baz.js')
+    );
+
+    t.throws(function () {
+        resolve.sync('baz', opts('/foo/bar'));
+    });
+
+    t.throws(function () {
+        resolve.sync('../baz', opts('/foo/bar'));
+    });
+});
+
+test('mock package', function (t) {
+    t.plan(1);
+
+    var files = {};
+    files[path.resolve('/foo/node_modules/bar/baz.js')] = 'beep';
+    files[path.resolve('/foo/node_modules/bar/package.json')] = JSON.stringify({
+        main: './baz.js'
+    });
+
+    var dirs = {};
+    dirs[path.resolve('/foo')] = true;
+    dirs[path.resolve('/foo/node_modules')] = true;
+
+    function opts(basedir) {
+        return {
+            basedir: path.resolve(basedir),
+            isFile: function (file) {
+                return Object.prototype.hasOwnProperty.call(files, path.resolve(file));
+            },
+            isDirectory: function (dir) {
+                return !!dirs[path.resolve(dir)];
+            },
+            readFileSync: function (file) {
+                return files[path.resolve(file)];
+            },
+            realpathSync: function (file) {
+                return file;
+            }
+        };
+    }
+
+    t.equal(
+        resolve.sync('bar', opts('/foo')),
+        path.resolve('/foo/node_modules/bar/baz.js')
+    );
+});
+
+test('symlinked', function (t) {
+    t.plan(2);
+
+    var files = {};
+    files[path.resolve('/foo/bar/baz.js')] = 'beep';
+    files[path.resolve('/foo/bar/symlinked/baz.js')] = 'beep';
+
+    var dirs = {};
+    dirs[path.resolve('/foo/bar')] = true;
+    dirs[path.resolve('/foo/bar/symlinked')] = true;
+
+    function opts(basedir) {
+        return {
+            preserveSymlinks: false,
+            basedir: path.resolve(basedir),
+            isFile: function (file) {
+                return Object.prototype.hasOwnProperty.call(files, path.resolve(file));
+            },
+            isDirectory: function (dir) {
+                return !!dirs[path.resolve(dir)];
+            },
+            readFileSync: function (file) {
+                return files[path.resolve(file)];
+            },
+            realpathSync: function (file) {
+                var resolved = path.resolve(file);
+
+                if (resolved.indexOf('symlinked') >= 0) {
+                    return resolved;
+                }
+
+                var ext = path.extname(resolved);
+
+                if (ext) {
+                    var dir = path.dirname(resolved);
+                    var base = path.basename(resolved);
+                    return path.join(dir, 'symlinked', base);
+                }
+                return path.join(resolved, 'symlinked');
+            }
+        };
+    }
+
+    t.equal(
+        resolve.sync('./baz', opts('/foo/bar')),
+        path.resolve('/foo/bar/symlinked/baz.js')
+    );
+
+    t.equal(
+        resolve.sync('./baz.js', opts('/foo/bar')),
+        path.resolve('/foo/bar/symlinked/baz.js')
+    );
+});
+
+test('readPackageSync', function (t) {
+    t.plan(3);
+
+    var files = {};
+    files[path.resolve('/foo/node_modules/bar/something-else.js')] = 'beep';
+    files[path.resolve('/foo/node_modules/bar/package.json')] = JSON.stringify({
+        main: './baz.js'
+    });
+    files[path.resolve('/foo/node_modules/bar/baz.js')] = 'boop';
+
+    var dirs = {};
+    dirs[path.resolve('/foo')] = true;
+    dirs[path.resolve('/foo/node_modules')] = true;
+
+    function opts(basedir, useReadPackage) {
+        return {
+            basedir: path.resolve(basedir),
+            isFile: function (file) {
+                return Object.prototype.hasOwnProperty.call(files, path.resolve(file));
+            },
+            isDirectory: function (dir) {
+                return !!dirs[path.resolve(dir)];
+            },
+            readFileSync: useReadPackage ? null : function (file) {
+                return files[path.resolve(file)];
+            },
+            realpathSync: function (file) {
+                return file;
+            }
+        };
+    }
+    t.test('with readFile', function (st) {
+        st.plan(1);
+
+        st.equal(
+            resolve.sync('bar', opts('/foo')),
+            path.resolve('/foo/node_modules/bar/baz.js')
+        );
+    });
+
+    var readPackageSync = function (readFileSync, file) {
+        if (file.indexOf(path.join('bar', 'package.json')) >= 0) {
+            return { main: './something-else.js' };
+        }
+        return JSON.parse(files[path.resolve(file)]);
+    };
+
+    t.test('with readPackage', function (st) {
+        st.plan(1);
+
+        var options = opts('/foo');
+        delete options.readFileSync;
+        options.readPackageSync = readPackageSync;
+
+        st.equal(
+            resolve.sync('bar', options),
+            path.resolve('/foo/node_modules/bar/something-else.js')
+        );
+    });
+
+    t.test('with readFile and readPackage', function (st) {
+        st.plan(1);
+
+        var options = opts('/foo');
+        options.readPackageSync = readPackageSync;
+        st.throws(
+            function () { resolve.sync('bar', options); },
+            TypeError,
+            'errors when both readFile and readPackage are provided'
+        );
+    });
+});
+