diff --git a/tests/__data__/input/sites/duplicate.channels.xml b/tests/__data__/input/sites/duplicate.channels.xml
new file mode 100644
index 00000000..000cd700
--- /dev/null
+++ b/tests/__data__/input/sites/duplicate.channels.xml
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<site site="duplicate.com">
+  <channels>
+    <channel lang="en" xmltv_id="CNNInternationalEurope.us" site_id="140">CNN International</channel>
+    <channel lang="en" xmltv_id="CNNInternationalEurope.us" site_id="140">CNN International</channel>
+  </channels>
+</site>
\ No newline at end of file
diff --git a/tests/__data__/input/sites/wrong_xmltv_id.channels.xml b/tests/__data__/input/sites/wrong_xmltv_id.channels.xml
new file mode 100644
index 00000000..638ab301
--- /dev/null
+++ b/tests/__data__/input/sites/wrong_xmltv_id.channels.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<site site="wrong_xmltv_id.com">
+  <channels>
+    <channel lang="en" xmltv_id="CNNInternational" site_id="140">CNN International</channel>
+  </channels>
+</site>
\ No newline at end of file
diff --git a/tests/commands/channels/validate.test.js b/tests/commands/channels/validate.test.js
new file mode 100644
index 00000000..0c7e6026
--- /dev/null
+++ b/tests/commands/channels/validate.test.js
@@ -0,0 +1,49 @@
+const { execSync } = require('child_process')
+
+it('will show a message if the file contains a duplicate', () => {
+  try {
+    const stdout = execSync(
+      'npm run channels:validate -- tests/__data__/input/sites/duplicate.channels.xml',
+      {
+        encoding: 'utf8'
+      }
+    )
+    console.log(stdout)
+    process.exit(1)
+  } catch (err) {
+    expect(err.status).toBe(1)
+    expect(err.stdout).toBe(
+      `\n> channels:validate\n> node scripts/commands/channels/validate.js "tests/__data__/input/sites/duplicate.channels.xml"\n\ntests/__data__/input/sites/duplicate.channels.xml
+┌─────────┬─────────────┬──────┬─────────────────────────────┬─────────┬─────────────────────┐
+│ (index) │    type     │ lang │          xmltv_id           │ site_id │        name         │
+├─────────┼─────────────┼──────┼─────────────────────────────┼─────────┼─────────────────────┤
+│    0    │ 'duplicate' │ 'en' │ 'CNNInternationalEurope.us' │  '140'  │ 'CNN International' │
+└─────────┴─────────────┴──────┴─────────────────────────────┴─────────┴─────────────────────┘
+\n1 error(s) in 1 file(s)\n`
+    )
+  }
+})
+
+it('will show a message if the file contains a channel with wrong xmltv_id', () => {
+  try {
+    const stdout = execSync(
+      'npm run channels:validate -- tests/__data__/input/sites/wrong_xmltv_id.channels.xml',
+      {
+        encoding: 'utf8'
+      }
+    )
+    console.log(stdout)
+    process.exit(1)
+  } catch (err) {
+    expect(err.status).toBe(1)
+    expect(err.stdout).toBe(
+      `\n> channels:validate\n> node scripts/commands/channels/validate.js "tests/__data__/input/sites/wrong_xmltv_id.channels.xml"\n\ntests/__data__/input/sites/wrong_xmltv_id.channels.xml
+┌─────────┬──────────────────┬──────┬────────────────────┬─────────┬─────────────────────┐
+│ (index) │       type       │ lang │      xmltv_id      │ site_id │        name         │
+├─────────┼──────────────────┼──────┼────────────────────┼─────────┼─────────────────────┤
+│    0    │ 'wrong_xmltv_id' │ 'en' │ 'CNNInternational' │  '140'  │ 'CNN International' │
+└─────────┴──────────────────┴──────┴────────────────────┴─────────┴─────────────────────┘
+\n1 error(s) in 1 file(s)\n`
+    )
+  }
+})