Add more tests for resolutions feature (#4180)

* add tests with offline mirror

* add fixtures

Author: kaylieEB

__tests__/commands/install/resolutions.js

@@ -2,6 +2,8 @@
 
 import {getPackageVersion, isPackagePresent, runInstall} from '../_helpers.js';
 
+jasmine.DEFAULT_TIMEOUT_INTERVAL = 150000;
+
 test.concurrent('install with simple exact resolutions should override all versions', (): Promise<void> => {
   return runInstall({}, {source: 'resolutions', cwd: 'simple-exact'}, async config => {
     expect(await getPackageVersion(config, 'a')).toEqual('1.0.0');
@@ -24,3 +26,28 @@ test.concurrent('install with subtree exact resolutions should override subtree
     expect(await getPackageVersion(config, 'c/left-pad')).toEqual('1.1.2');
   });
 });
+
+test.concurrent('install with exotic resolutions should override versions', (): Promise<void> => {
+  return runInstall({}, {source: 'resolutions', cwd: 'exotic-version'}, async config => {
+    expect(await getPackageVersion(config, 'left-pad')).toEqual('1.1.1');
+  });
+});
+
+test.concurrent('install with range resolutions should override versions', (): Promise<void> => {
+  return runInstall({}, {source: 'resolutions', cwd: 'simple-range'}, async config => {
+    expect(await getPackageVersion(config, 'left-pad')).toEqual('1.1.1');
+  });
+});
+test.concurrent('should warn when resolution entries are incorrrect or incompatible', async (): Promise<void> => {
+  let error;
+
+  try {
+    await runInstall({}, {source: 'resolutions', cwd: 'invalid-entries'});
+  } catch (e) {
+    error = e.message;
+  }
+
+  expect(error).toContain('Resolution field "[email protected]" is incompatible with requested version "left-pad@~1.1.0');
+  expect(error).toContain('Resolution field "wrongversion" has an invalid version entry and may be ignored');
+  expect(error).toContain('Resolution field "invalidname/" does not end with a valid package name and will be ignored');
+});

__tests__/fixtures/install/resolutions/c-1/package.json

@@ -2,6 +2,6 @@
   "name": "c",
   "version": "1.0.0",
   "dependencies": {
-    "left-pad": "~1.1.1"
+    "left-pad": "~1.1.0"
   }
 }

__tests__/fixtures/install/resolutions/exotic-version/.yarnrc

@@ -0,0 +1 @@
+yarn-offline-mirror "./mirror-for-offline"

__tests__/fixtures/install/resolutions/exotic-version/mirror-for-offline/left-pad-1.1.1.tgz

@@ -0,0 +1,10 @@
+{
+  "name": "project",
+  "version": "1.0.0",
+  "dependencies": {
+    "c": "file:../c-1"
+  },
+  "resolutions": {
+    "left-pad": "https://github.com/stevemao/left-pad.git#1.1.1"
+  }
+}

__tests__/fixtures/install/resolutions/exotic-version/package.json

@@ -0,0 +1,12 @@
+{
+  "name": "project",
+  "version": "1.0.0",
+  "dependencies": {
+    "c": "file:../c-1"
+  },
+  "resolutions": {
+    "c/**/left-pad": "1.0.0",
+    "invalidname/": "1.0.0",
+    "**/left-pad": "wrongversion"
+  }
+}

__tests__/fixtures/install/resolutions/invalid-entries/package.json

@@ -0,0 +1,10 @@
+{
+  "name": "project",
+  "version": "1.0.0",
+  "dependencies": {
+    "c": "file:../c-1"
+  },
+  "resolutions": {
+    "left-pad": "<=1.1.1"
+  }
+}

__tests__/fixtures/install/resolutions/simple-range/package.json

@@ -86,7 +86,7 @@ export default class ResolutionMap {
     const {pattern, range} = resolutions.find(({globPattern}) => minimatch(modulePath, globPattern)) || {};
 
     if (pattern) {
-      if (semver.validRange(range) && semver.valid(reqRange) && !semver.satisfies(range, reqRange)) {
+      if (semver.validRange(reqRange) && semver.valid(range) && !semver.satisfies(range, reqRange)) {
         this.reporter.warn(this.reporter.lang('incompatibleResolutionVersion', pattern, reqPattern));
       }
     }