diff --git a/tests/Composer/Test/Command/FundCommandTest.php b/tests/Composer/Test/Command/FundCommandTest.php
new file mode 100644
index 000000000..92593724f
--- /dev/null
+++ b/tests/Composer/Test/Command/FundCommandTest.php
@@ -0,0 +1,204 @@
+<?php declare(strict_types=1);
+
+/*
+ * This file is part of Composer.
+ *
+ * (c) Nils Adermann <naderman@naderman.de>
+ *     Jordi Boggiano <j.boggiano@seld.be>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Composer\Test\Command;
+
+use Composer\Test\TestCase;
+use Generator;
+
+class FundCommandTest extends TestCase
+{
+    /**
+     * @dataProvider useCaseProvider
+     * @param  array<mixed>  $composerJson
+     * @param  array<mixed>  $command
+     * @param  array<mixed>  $funding
+     */
+    public function testFundCommand(
+        array $composerJson,
+        array $command,
+        array $funding,
+        string $expected
+    ): void {
+        $this->initTempComposer($composerJson);
+
+        $packages = [
+            'first/pkg' => $this->getPackage('first/pkg', '2.3.4'),
+            'stable/pkg' => $this->getPackage('stable/pkg', '1.0.0'),
+        ];
+        $devPackages = [
+            'dev/pkg' => $this->getPackage('dev/pkg', '2.3.4.5')
+        ];
+
+        if (count($funding) !== 0) {
+            foreach ($funding as $pkg => $fundingInfo) {
+                if (isset($packages[$pkg])) {
+                    $packages[$pkg]->setFunding([$fundingInfo]);
+                }
+                if (isset($devPackages[$pkg])) {
+                    $devPackages[$pkg]->setFunding([$fundingInfo]);
+                }
+            }
+        }
+
+        $this->createInstalledJson($packages, $devPackages);
+
+        $appTester = $this->getApplicationTester();
+        $appTester->run(array_merge(['command' => 'fund'], $command));
+
+        $appTester->assertCommandIsSuccessful();
+        $this->assertSame(trim($expected), trim($appTester->getDisplay(true)));
+    }
+
+    public function useCaseProvider(): Generator
+    {
+        yield 'no funding links present, locally or remotely' => [
+            [
+                'repositories' => [],
+                'require' => [
+                    'first/pkg' => '^2.0',
+                ],
+                'require-dev' => [
+                    'dev/pkg' => '~4.0',
+                ]
+            ],
+            [],
+            [],
+            "No funding links were found in your package dependencies. This doesn't mean they don't need your support!"
+        ];
+
+        yield 'funding links set locally are used as fallback if not found remotely' => [
+            [
+                'repositories' => [],
+                'require' => [
+                    'first/pkg' => '^2.0',
+                ],
+                'require-dev' => [
+                    'dev/pkg' => '~4.0',
+                ]
+            ],
+            [],
+            [
+                'first/pkg' => [
+                    'type' => 'github',
+                    'url' => 'https://github.com/composer-test-data'
+                ],
+                'dev/pkg' => [
+                    'type' => 'github',
+                    'url' => 'https://github.com/composer-test-data-dev'
+                ]
+            ],
+            "The following packages were found in your dependencies which publish funding information:
+
+dev
+  pkg
+    https://github.com/sponsors/composer-test-data-dev
+
+first
+    https://github.com/sponsors/composer-test-data
+
+Please consider following these links and sponsoring the work of package authors!
+Thank you!"
+        ];
+
+        yield 'funding links set remotely are used as primary if found' => [
+            [
+                'repositories' => [
+                    [
+                        'type' => 'package',
+                        'package' => [
+                            // should not be used as there is a default branch version of this package available
+                            ['name' => 'first/pkg', 'version' => 'dev-foo', 'funding' => [['type' => 'github', 'url' => 'https://github.com/test-should-not-be-used']]],
+                            // should be used as default branch from remote repo takes precedence
+                            ['name' => 'first/pkg', 'version' => 'dev-main', 'default-branch' => true, 'funding' => [['type' => 'custom', 'url' => 'https://example.org']]],
+                            // should be used as default branch from remote repo takes precedence
+                            ['name' => 'dev/pkg', 'version' => 'dev-foo', 'default-branch' => true,  'funding' => [['type' => 'github', 'url' => 'https://github.com/org']]],
+                            // no default branch available so falling back to locally installed data
+                            ['name' => 'stable/pkg', 'version' => '1.0.0', 'funding' => [['type' => 'github', 'url' => 'org2']]],
+                        ],
+                    ]
+                ],
+                'require' => [
+                    'first/pkg' => '^2.0',
+                    'stable/pkg' => '^1.0',
+                ],
+                'require-dev' => [
+                    'dev/pkg' => '~4.0',
+                ]
+            ],
+            [],
+            [
+                'first/pkg' => [
+                    'type' => 'github',
+                    'url' => 'https://github.com/composer-test-data'
+                ],
+                'dev/pkg' => [
+                    'type' => 'github',
+                    'url' => 'https://github.com/composer-test-data-dev'
+                ],
+                'stable/pkg' => [
+                    'type' => 'github',
+                    'url' => 'https://github.com/composer-test-data-stable'
+                ]
+            ],
+            "The following packages were found in your dependencies which publish funding information:
+
+dev
+  pkg
+    https://github.com/sponsors/org
+
+first
+    https://example.org
+
+stable
+    https://github.com/sponsors/composer-test-data-stable
+
+Please consider following these links and sponsoring the work of package authors!
+Thank you!"
+        ];
+
+        yield 'format funding links as JSON' => [
+            [
+                'repositories' => [],
+                'require' => [
+                    'first/pkg' => '^2.0',
+                ],
+                'require-dev' => [
+                    'dev/pkg' => '~4.0',
+                ]
+            ],
+            ['--format' => 'json'],
+            [
+                'first/pkg' => [
+                    'type' => 'github',
+                    'url' => 'https://github.com/composer-test-data'
+                ],
+                'dev/pkg' => [
+                    'type' => 'github',
+                    'url' => 'https://github.com/composer-test-data-dev'
+                ]
+            ],
+            '{
+    "dev": {
+        "https://github.com/sponsors/composer-test-data-dev": [
+            "pkg"
+        ]
+    },
+    "first": {
+        "https://github.com/sponsors/composer-test-data": [
+            "pkg"
+        ]
+    }
+}'
+        ];
+    }
+}