diff --git a/services/snapcraft/snapcraft-version.spec.js b/services/snapcraft/snapcraft-version.spec.js
new file mode 100644
index 0000000000000..a0ef7a31c7c4a
--- /dev/null
+++ b/services/snapcraft/snapcraft-version.spec.js
@@ -0,0 +1,103 @@
+import { expect } from 'chai'
+import { test, given } from 'sazerac'
+import _ from 'lodash'
+import { NotFound } from '../index.js'
+import SnapcraftVersion from './snapcraft-version.service.js'
+
+describe('SnapcraftVersion', function () {
+  const exampleChannel = {
+    channel: {
+      architecture: 'amd64',
+      risk: 'stable',
+      track: 'latest',
+    },
+    version: '1.2.3',
+  }
+  const exampleArchChange = _.merge(_.cloneDeep(exampleChannel), {
+    channel: { architecture: 'arm64' },
+    version: '2.3.4',
+  })
+  const exampleTrackChange = _.merge(_.cloneDeep(exampleChannel), {
+    channel: { track: 'beta' },
+    version: '3.4.5',
+  })
+  const exampleRiskChange = _.merge(_.cloneDeep(exampleChannel), {
+    channel: { risk: 'edge' },
+    version: '5.4.6',
+  })
+  const testApiData = {
+    'channel-map': [
+      exampleChannel,
+      exampleArchChange,
+      exampleTrackChange,
+      exampleRiskChange,
+    ],
+  }
+
+  test(SnapcraftVersion.prototype.transform, () => {
+    given(
+      testApiData,
+      exampleChannel.channel.track,
+      exampleChannel.channel.risk,
+      exampleChannel.channel.architecture,
+    ).expect(exampleChannel)
+    // change arch
+    given(
+      testApiData,
+      exampleChannel.channel.track,
+      exampleChannel.channel.risk,
+      exampleArchChange.channel.architecture,
+    ).expect(exampleArchChange)
+    // change track
+    given(
+      testApiData,
+      exampleTrackChange.channel.track,
+      exampleChannel.channel.risk,
+      exampleChannel.channel.architecture,
+    ).expect(exampleTrackChange)
+    // change risk
+    given(
+      testApiData,
+      exampleChannel.channel.track,
+      exampleRiskChange.channel.risk,
+      exampleChannel.channel.architecture,
+    ).expect(exampleRiskChange)
+  })
+
+  it('throws NotFound error with missing arch', function () {
+    expect(() => {
+      SnapcraftVersion.prototype.transform(
+        testApiData,
+        exampleChannel.channel.track,
+        exampleChannel.channel.risk,
+        'missing',
+      )
+    })
+      .to.throw(NotFound)
+      .with.property('prettyMessage', 'arch not found')
+  })
+  it('throws NotFound error with missing track', function () {
+    expect(() => {
+      SnapcraftVersion.prototype.transform(
+        testApiData,
+        'missing',
+        exampleChannel.channel.risk,
+        exampleChannel.channel.architecture,
+      )
+    })
+      .to.throw(NotFound)
+      .with.property('prettyMessage', 'track not found')
+  })
+  it('throws NotFound error with missing risk', function () {
+    expect(() => {
+      SnapcraftVersion.prototype.transform(
+        testApiData,
+        exampleChannel.channel.track,
+        'missing',
+        exampleChannel.channel.architecture,
+      )
+    })
+      .to.throw(NotFound)
+      .with.property('prettyMessage', 'risk not found')
+  })
+})