[Tests] add list-exports-tests tests

Author: bgotink

.eslintignore

@@ -1 +1,2 @@
 node_modules
+test/list-exports-tests/fixtures

test/list-exports-tests.js

@@ -0,0 +1,148 @@
+var fs = require('fs');
+var path = require('path');
+var test = require('tape');
+var resolve = require('../');
+
+var fixturesPath = path.join(__dirname, 'list-exports-tests/fixtures');
+
+fs.readdirSync(fixturesPath).forEach(function (fixtureName) {
+    var fixtureSpec = require(path.join(fixturesPath, fixtureName, 'expected.json'));
+    var fixturePackagePath = path.join(fixturesPath, fixtureName, 'project');
+
+    function packageIterator(identifier) {
+        var slashIdx = identifier.indexOf('/');
+
+        if (slashIdx === -1) {
+            return identifier === fixtureSpec.name ? [fixturePackagePath] : null;
+        }
+
+        if (identifier.slice(0, slashIdx) === fixtureSpec.name) {
+            return [fixturePackagePath + identifier.slice(slashIdx)];
+        } else {
+            return null;
+        }
+    }
+
+    var optsWithExports = { packageIterator: packageIterator, ignoreExportsField: false, extensions: ['.js', '.json'] };
+    var optsWithoutExports = { packageIterator: packageIterator, ignoreExportsField: true, extensions: ['.js', '.json'] };
+
+    test('list-exports-tests fixture ' + fixtureName, function (t) {
+        /*
+         * Sanity check: package.json should be resolvable with exports disabled
+         * All other tests are configured via the expected.json file
+         */
+        resolve(fixtureSpec.name + '/package.json', optsWithoutExports, function (err, res, pkg) {
+            t.ifErr(err);
+            t.equal(res, path.join(fixturePackagePath, 'package.json'), 'sanity check');
+        });
+
+        // with exports enabled
+
+        if (fixtureSpec.private) {
+            t.plan(2);
+            return;
+        }
+
+        t.plan(2 * (1 + fixtureSpec.require.length + fixtureSpec['require (pre-exports)'].length));
+
+        fixtureSpec.require.forEach(function (identifier) {
+            if (identifier === fixtureSpec.name + '/') {
+                t.skip();
+                t.skip();
+                return;
+            }
+
+            resolve(identifier, optsWithExports, function (err, res, pkg) {
+                t.ifErr(err);
+                var tree = fixtureSpec.tree[fixtureSpec.name];
+
+                var relativeResolvedParts = path.relative(fixturePackagePath, res).split(path.sep);
+
+                for (var i = 0; i < relativeResolvedParts.length; i++) {
+                    tree = tree[relativeResolvedParts[i]];
+
+                    if (!tree) {
+                        t.fail('Unexpected resolved path ' + JSON.stringify(res) + ' for ' + JSON.stringify(identifier));
+                    }
+                }
+
+                t.notEqual(tree.indexOf(identifier), -1, 'resolved path ' + JSON.stringify(res) + ' for ' + JSON.stringify(identifier));
+            });
+        });
+
+        fixtureSpec['require (pre-exports)'].forEach(function (identifier) {
+            resolve(identifier, optsWithoutExports, function (err, res, pkg) {
+                t.ifErr(err);
+                var tree = fixtureSpec['tree (pre-exports)'][fixtureSpec.name];
+
+                var relativeResolvedParts = path.relative(fixturePackagePath, res).split(path.sep);
+
+                for (var i = 0; i < relativeResolvedParts.length; i++) {
+                    tree = tree[relativeResolvedParts[i]];
+
+                    if (!tree) {
+                        t.fail('Unexpected resolved path ' + JSON.stringify(res) + ' for ' + JSON.stringify(identifier));
+                    }
+                }
+
+                t.notEqual(tree.indexOf(identifier), -1, 'resolved path ' + JSON.stringify(res) + ' for ' + JSON.stringify(identifier));
+            });
+        });
+    });
+
+    test('list-exports-tests fixture ' + fixtureName + ' sync', function (t) {
+        /*
+         * Sanity check: package.json should be resolvable with exports disabled
+         * All other tests are configured via the expected.json file
+         */
+        t.equal(resolve.sync(fixtureSpec.name + '/package.json', optsWithoutExports), path.join(fixturePackagePath, 'package.json'), 'sanity check');
+
+        // with exports enabled
+
+        if (fixtureSpec.private) {
+            t.end();
+            return;
+        }
+
+        fixtureSpec.require.forEach(function (identifier) {
+            if (identifier === fixtureSpec.name + '/') {
+                t.skip();
+                return;
+            }
+
+            var resolved = resolve.sync(identifier, optsWithExports);
+            var tree = fixtureSpec.tree[fixtureSpec.name];
+
+            var relativeResolvedParts = path.relative(fixturePackagePath, resolved).split(path.sep);
+
+            for (var i = 0; i < relativeResolvedParts.length; i++) {
+                tree = tree[relativeResolvedParts[i]];
+
+                if (!tree) {
+                    t.fail('Unexpected resolved path ' + JSON.stringify(resolved) + ' for ' + JSON.stringify(identifier));
+                }
+            }
+
+            t.notEqual(tree.indexOf(identifier), -1, 'resolved path ' + JSON.stringify(resolved) + ' for ' + JSON.stringify(identifier));
+        });
+
+        fixtureSpec['require (pre-exports)'].forEach(function (identifier) {
+            var resolved = resolve.sync(identifier, optsWithoutExports);
+            var tree = fixtureSpec['tree (pre-exports)'][fixtureSpec.name];
+
+            var relativeResolvedParts = path.relative(fixturePackagePath, resolved).split(path.sep);
+
+            for (var i = 0; i < relativeResolvedParts.length; i++) {
+                tree = tree[relativeResolvedParts[i]];
+
+                if (!tree) {
+                    t.fail('Unexpected resolved path ' + JSON.stringify(resolved) + ' for ' + JSON.stringify(identifier));
+                }
+            }
+
+            t.notEqual(tree.indexOf(identifier), -1, 'resolved path ' + JSON.stringify(resolved) + ' for ' + JSON.stringify(identifier));
+        });
+
+        t.end();
+    });
+});