tests: add tests for --no-stats

test/no-stats/with-config/a.js

@@ -0,0 +1,4 @@
+require('url');
+require('path');
+
+console.log('--no-stats with config test');

test/no-stats/with-config/no-stats-with-config.test.js

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+'use strict';
+// eslint-disable-next-line node/no-unpublished-require
+const { run } = require('../../utils/test-utils');
+// eslint-disable-next-line node/no-extraneous-require
+const { version } = require('webpack');
+
+describe('stats flag', () => {
+    it(`should use stats detailed as defined in webpack config`, () => {
+        const { stderr, stdout } = run(__dirname, []);
+
+        expect(stderr).toBeFalsy();
+        if (version.startsWith('5')) {
+            expect(stdout).toContain(`stats: { preset: 'detailed' }`);
+        } else {
+            expect(stdout).toContain(`stats: 'detailed'`);
+        }
+    });
+
+    it(`should use --no-stats and override value config`, () => {
+        const { stderr, stdout } = run(__dirname, ['--no-stats']);
+
+        expect(stderr).toBeFalsy();
+        if (version.startsWith('5')) {
+            expect(stdout).toContain(`stats: { preset: 'none' }`);
+        } else {
+            expect(stdout).toContain(`stats: false`);
+        }
+    });
+});

test/no-stats/with-config/webpack.config.js

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+// eslint-disable-next-line node/no-unpublished-require
+const WebpackCLITestPlugin = require('../../utils/webpack-cli-test-plugin');
+
+module.exports = {
+    mode: 'development',
+    entry: './main.js',
+    stats: 'detailed',
+    plugins: [new WebpackCLITestPlugin()],
+};

test/no-stats/with-flags/main.js

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+require('url');
+require('path');
+
+console.log('--no-stats test');

test/no-stats/with-flags/no-stats.test.js

@@ -0,0 +1,51 @@
+'use strict';
+// eslint-disable-next-line node/no-unpublished-require
+const { run } = require('../../utils/test-utils');
+// eslint-disable-next-line node/no-extraneous-require
+const { version } = require('webpack');
+
+describe('stats flag', () => {
+    it('should accept --no-stats as boolean', () => {
+        const { stderr, stdout } = run(__dirname, ['--no-stats']);
+
+        expect(stderr).toBeFalsy();
+        if (version.startsWith('5')) {
+            expect(stdout).toContain(`stats: { preset: 'none' }`);
+        } else {
+            expect(stdout).toContain('stats: false');
+        }
+    });
+
+    it('should warn and use --no-stats when stats and no-stats both are provided', () => {
+        const { stderr, stdout } = run(__dirname, ['--stats', 'verbose', '--no-stats']);
+
+        expect(stderr).toContain(`You provided both --stats and --no-stats. We will use only the last of these flags`);
+        if (version.startsWith('5')) {
+            expect(stdout).toContain(`stats: { preset: 'none' }`);
+        } else {
+            expect(stdout).toContain('stats: false');
+        }
+    });
+
+    it('should warn and use --stats when stats and no-stats both are provided', () => {
+        const { stderr, stdout } = run(__dirname, ['--no-stats', '--stats', 'verbose']);
+
+        expect(stderr).toContain(`You provided both --stats and --no-stats. We will use only the last of these flags`);
+        if (version.startsWith('5')) {
+            expect(stdout).toContain(`stats: { preset: 'verbose' }`);
+        } else {
+            expect(stdout).toContain(`stats: 'verbose'`);
+        }
+    });
+
+    it('should use --verbose over --no-stats', () => {
+        const { stderr, stdout } = run(__dirname, ['--no-stats', '--verbose']);
+
+        expect(stderr).toBeFalsy();
+        if (version.startsWith('5')) {
+            expect(stdout).toContain(`stats: { preset: 'verbose' }`);
+        } else {
+            expect(stdout).toContain(`stats: 'verbose'`);
+        }
+    });
+});

test/no-stats/with-flags/webpack.config.js

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+// eslint-disable-next-line node/no-unpublished-require
+const WebpackCLITestPlugin = require('../../utils/webpack-cli-test-plugin');
+
+module.exports = {
+    mode: 'development',
+    entry: './main.js',
+    plugins: [new WebpackCLITestPlugin()],
+};