diff --git a/.github/workflows/setup-tofu.yml b/.github/workflows/setup-tofu.yml
index f2a5bf7..69bb3c8 100644
--- a/.github/workflows/setup-tofu.yml
+++ b/.github/workflows/setup-tofu.yml
@@ -17,9 +17,8 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest, windows-latest, macos-latest]
-        # TODO: add move versions to test when the feature is added
-        tofu-versions: [latest]
-        tofu-wrapper: ["true", "false"]
+        tofu-versions: [1.6.0-alpha1, latest]
+        tofu-wrapper: [true, false]
     steps:
     - name: Checkout
       uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac # v4.0.0
@@ -43,7 +42,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest, windows-latest, macos-latest]
-        tofu-wrapper: ["true", "false"]
+        tofu-wrapper: [true, false]
     steps:
     - name: Checkout
       uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac # v4.0.0
@@ -77,7 +76,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest, windows-latest, macos-latest]
-        tofu-wrapper: ["true", "false"]
+        tofu-wrapper: [true, false]
     defaults:
       run:
         working-directory: ./.github/workflows/data/local
diff --git a/dist/index.js b/dist/index.js
index cfbe285..8a47772 100644
--- a/dist/index.js
+++ b/dist/index.js
@@ -43,7 +43,7 @@ async function fetchReleases () {
   });
 
   if (!resp.ok) {
-    throw Error('failed fetching releases');
+    throw new Error('failed fetching releases');
   }
 
   const releasesMeta = await resp.json();
@@ -100,8 +100,7 @@ async function getRelease (version, fetchReleasesFn = fetchReleases) {
 // See: https://github.com/hashicorp/setup-terraform/blob/e192cfcbae6c6ed207c277ed7624131996c9bf13/lib/setup-terraform.js#L15
 module.exports = {
   getRelease,
-  Release,
-  Build
+  Release
 };
 
 
diff --git a/lib/releases.js b/lib/releases.js
index b6eb614..3d6376d 100644
--- a/lib/releases.js
+++ b/lib/releases.js
@@ -37,7 +37,7 @@ async function fetchReleases () {
   });
 
   if (!resp.ok) {
-    throw Error('failed fetching releases');
+    throw new Error('failed fetching releases');
   }
 
   const releasesMeta = await resp.json();
@@ -94,6 +94,5 @@ async function getRelease (version, fetchReleasesFn = fetchReleases) {
 // See: https://github.com/hashicorp/setup-terraform/blob/e192cfcbae6c6ed207c277ed7624131996c9bf13/lib/setup-terraform.js#L15
 module.exports = {
   getRelease,
-  Release,
-  Build
+  Release
 };
diff --git a/lib/test/releases.test.js b/lib/test/releases.test.js
index 53303cc..983d848 100644
--- a/lib/test/releases.test.js
+++ b/lib/test/releases.test.js
@@ -1,199 +1,219 @@
 const pkg = require('../releases');
 
-function mockFetchReleases () {
-  const mockReleasesMeta = [{
-    tag_name: 'v1.6.0-alpha2',
-    assets: [{
-      name: 'tofu_1.6.0-alpha2_386.apk',
-      browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0-alpha2/tofu_1.6.0-alpha2_386.apk'
-    }, {
-      name: 'tofu_1.6.0-alpha2_386.deb',
-      browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0-alpha2/tofu_1.6.0-alpha2_386.deb'
-    }, {
-      name: 'tofu_1.6.0-alpha2_386.rpm',
-      browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0-alpha2/tofu_1.6.0-alpha2_386.rpm'
-    }, {
-      name: 'tofu_1.6.0-alpha2_amd64.apk',
-      browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0-alpha2/tofu_1.6.0-alpha2_amd64.apk'
-    }, {
-      name: 'tofu_1.6.0-alpha2_amd64.deb',
-      browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0-alpha2/tofu_1.6.0-alpha2_amd64.deb'
-    }, {
-      name: 'tofu_1.6.0-alpha2_amd64.rpm',
-      browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0-alpha2/tofu_1.6.0-alpha2_amd64.rpm'
-    }, {
-      name: 'tofu_1.6.0-alpha2_arm.apk',
-      browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0-alpha2/tofu_1.6.0-alpha2_arm.apk'
-    }, {
-      name: 'tofu_1.6.0-alpha2_arm.deb',
-      browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0-alpha2/tofu_1.6.0-alpha2_arm.deb'
-    }, {
-      name: 'tofu_1.6.0-alpha2_arm.rpm',
-      browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0-alpha2/tofu_1.6.0-alpha2_arm.rpm'
-    }, {
-      name: 'tofu_1.6.0-alpha2_arm64.apk',
-      browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0-alpha2/tofu_1.6.0-alpha2_arm64.apk'
-    }, {
-      name: 'tofu_1.6.0-alpha2_arm64.deb',
-      browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0-alpha2/tofu_1.6.0-alpha2_arm64.deb'
-    }, {
-      name: 'tofu_1.6.0-alpha2_arm64.rpm',
-      browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0-alpha2/tofu_1.6.0-alpha2_arm64.rpm'
-    }, {
-      browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0-alpha2/tofu_1.6.0-alpha2_darwin_amd64.zip'
-    }, {
-      name: 'tofu_1.6.0-alpha2_darwin_arm64.zip',
-      browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0-alpha2/tofu_1.6.0-alpha2_darwin_arm64.zip'
-    }, {
-      name: 'tofu_1.6.0-alpha2_freebsd_386.zip',
-      browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0-alpha2/tofu_1.6.0-alpha2_freebsd_386.zip'
-    }, {
-      name: 'tofu_1.6.0-alpha2_freebsd_amd64.zip',
-      browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0-alpha2/tofu_1.6.0-alpha2_freebsd_amd64.zip'
-    }, {
-      name: 'tofu_1.6.0-alpha2_freebsd_arm.zip',
-      browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0-alpha2/tofu_1.6.0-alpha2_freebsd_arm.zip'
-    }, {
-      name: 'tofu_1.6.0-alpha2_linux_386.zip',
-      browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0-alpha2/tofu_1.6.0-alpha2_linux_386.zip'
-    }, {
-      name: 'tofu_1.6.0-alpha2_linux_amd64.zip',
-      browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0-alpha2/tofu_1.6.0-alpha2_linux_amd64.zip'
-    }, {
-      name: 'tofu_1.6.0-alpha2_linux_arm.zip',
-      browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0-alpha2/tofu_1.6.0-alpha2_linux_arm.zip'
-    }, {
-      name: 'tofu_1.6.0-alpha2_linux_arm64.zip',
-      browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0-alpha2/tofu_1.6.0-alpha2_linux_arm64.zip'
-    }, {
-      name: 'tofu_1.6.0-alpha2_openbsd_386.zip',
-      browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0-alpha2/tofu_1.6.0-alpha2_openbsd_386.zip'
-    }, {
-      name: 'tofu_1.6.0-alpha2_openbsd_amd64.zip',
-      browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0-alpha2/tofu_1.6.0-alpha2_openbsd_amd64.zip'
-    }, {
-      name: 'tofu_1.6.0-alpha2_SHA256SUMS',
-      browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0-alpha2/tofu_1.6.0-alpha2_SHA256SUMS'
-    }, {
-      name: 'tofu_1.6.0-alpha2_SHA256SUMS.pem',
-      browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0-alpha2/tofu_1.6.0-alpha2_SHA256SUMS.pem'
-    }, {
-      name: 'tofu_1.6.0-alpha2_SHA256SUMS.sig',
-      browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0-alpha2/tofu_1.6.0-alpha2_SHA256SUMS.sig'
-    }, {
-      name: 'tofu_1.6.0-alpha2_solaris_amd64.zip',
-      browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0-alpha2/tofu_1.6.0-alpha2_solaris_amd64.zip'
-    }, {
-      name: 'tofu_1.6.0-alpha2_windows_386.zip',
-      browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0-alpha2/tofu_1.6.0-alpha2_windows_386.zip'
-    }, {
-      name: 'tofu_1.6.0-alpha2_windows_amd64.zip',
-      browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0-alpha2/tofu_1.6.0-alpha2_windows_amd64.zip'
-    }]
-  }, {
-    tag_name: 'v1.6.0-alpha1',
-    assets: [{
-      name: 'tofu_1.6.0-alpha1_386.apk',
-      browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0-alpha1/tofu_1.6.0-alpha1_386.apk'
-    }, {
-      name: 'tofu_1.6.0-alpha1_386.deb',
-      browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0-alpha1/tofu_1.6.0-alpha1_386.deb'
-    }, {
-      name: 'tofu_1.6.0-alpha1_386.rpm',
-      browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0-alpha1/tofu_1.6.0-alpha1_386.rpm'
-    }, {
-      name: 'tofu_1.6.0-alpha1_amd64.apk',
-      browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0-alpha1/tofu_1.6.0-alpha1_amd64.apk'
-    }, {
-      name: 'tofu_1.6.0-alpha1_amd64.deb',
-      browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0-alpha1/tofu_1.6.0-alpha1_amd64.deb'
-    }, {
-      name: 'tofu_1.6.0-alpha1_amd64.rpm',
-      browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0-alpha1/tofu_1.6.0-alpha1_amd64.rpm'
-    }, {
-      name: 'tofu_1.6.0-alpha1_arm.apk',
-      browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0-alpha1/tofu_1.6.0-alpha1_arm.apk'
-    }, {
-      name: 'tofu_1.6.0-alpha1_arm.deb',
-      browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0-alpha1/tofu_1.6.0-alpha1_arm.deb'
-    }, {
-      name: 'tofu_1.6.0-alpha1_arm.rpm',
-      browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0-alpha1/tofu_1.6.0-alpha1_arm.rpm'
-    }, {
-      name: 'tofu_1.6.0-alpha1_arm64.apk',
-      browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0-alpha1/tofu_1.6.0-alpha1_arm64.apk'
-    }, {
-      name: 'tofu_1.6.0-alpha1_arm64.deb',
-      browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0-alpha1/tofu_1.6.0-alpha1_arm64.deb'
-    }, {
-      name: 'tofu_1.6.0-alpha1_arm64.rpm',
-      browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0-alpha1/tofu_1.6.0-alpha1_arm64.rpm'
-    }, {
-      name: 'tofu_1.6.0-alpha1_darwin_amd64.zip',
-      browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0-alpha1/tofu_1.6.0-alpha1_darwin_amd64.zip'
-    }, {
-      name: 'tofu_1.6.0-alpha1_darwin_arm64.zip',
-      browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0-alpha1/tofu_1.6.0-alpha1_darwin_arm64.zip'
-    }, {
-      name: 'tofu_1.6.0-alpha1_freebsd_386.zip',
-      browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0-alpha1/tofu_1.6.0-alpha1_freebsd_386.zip'
-    }, {
-      name: 'tofu_1.6.0-alpha1_freebsd_amd64.zip',
-      browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0-alpha1/tofu_1.6.0-alpha1_freebsd_amd64.zip'
-    }, {
-      name: 'tofu_1.6.0-alpha1_freebsd_arm.zip',
-      browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0-alpha1/tofu_1.6.0-alpha1_freebsd_arm.zip'
-    }, {
-      name: 'tofu_1.6.0-alpha1_linux_386.zip',
-      browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0-alpha1/tofu_1.6.0-alpha1_linux_386.zip'
-    }, {
-      name: 'tofu_1.6.0-alpha1_linux_amd64.zip',
-      browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0-alpha1/tofu_1.6.0-alpha1_linux_amd64.zip'
-    }, {
-      name: 'tofu_1.6.0-alpha1_linux_arm.zip',
-      browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0-alpha1/tofu_1.6.0-alpha1_linux_arm.zip'
-    }, {
-      name: 'tofu_1.6.0-alpha1_linux_arm64.zip',
-      browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0-alpha1/tofu_1.6.0-alpha1_linux_arm64.zip'
-    }, {
-      name: 'tofu_1.6.0-alpha1_openbsd_386.zip',
-      browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0-alpha1/tofu_1.6.0-alpha1_openbsd_386.zip'
-    }, {
-      name: 'tofu_1.6.0-alpha1_openbsd_amd64.zip',
-      browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0-alpha1/tofu_1.6.0-alpha1_openbsd_amd64.zip'
-    }, {
-      name: 'tofu_1.6.0-alpha1_SHA256SUMS',
-      browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0-alpha1/tofu_1.6.0-alpha1_SHA256SUMS'
-    }, {
-      name: 'tofu_1.6.0-alpha1_SHA256SUMS.pem',
-      browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0-alpha1/tofu_1.6.0-alpha1_SHA256SUMS.pem'
-    }, {
-      name: 'tofu_1.6.0-alpha1_SHA256SUMS.sig',
-      browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0-alpha1/tofu_1.6.0-alpha1_SHA256SUMS.sig'
-    }, {
-      name: 'tofu_1.6.0-alpha1_solaris_amd64.zip',
-      browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0-alpha1/tofu_1.6.0-alpha1_solaris_amd64.zip'
-    }, {
-      name: 'tofu_1.6.0-alpha1_windows_386.zip',
-      browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0-alpha1/tofu_1.6.0-alpha1_windows_386.zip'
-    }, {
-      name: 'tofu_1.6.0-alpha1_windows_amd64.zip',
-      browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0-alpha1/tofu_1.6.0-alpha1_windows_amd64.zip'
-    }]
-  }];
-
-  return mockReleasesMeta.map(el => new pkg.Release(el));
-}
-
 describe('getRelease', () => {
-  it('shall return \'1.6.0-alpha2\' release', async () => {
-    const version = '<1.6.0-alpha3';
-    const want = mockFetchReleases().find(el => el.version === '1.6.0-alpha2');
-    const gotRelease = await pkg.getRelease(version, mockFetchReleases);
+  function mockFetchReleases () {
+    const mockReleasesMeta = [{
+      tag_name: 'v1.6.0-alpha2',
+      assets: [{
+        name: 'tofu_1.6.0-alpha2_386.apk',
+        browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0-alpha2/tofu_1.6.0-alpha2_386.apk'
+      }, {
+        name: 'tofu_1.6.0-alpha2_386.deb',
+        browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0-alpha2/tofu_1.6.0-alpha2_386.deb'
+      }, {
+        name: 'tofu_1.6.0-alpha2_386.rpm',
+        browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0-alpha2/tofu_1.6.0-alpha2_386.rpm'
+      }, {
+        name: 'tofu_1.6.0-alpha2_amd64.apk',
+        browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0-alpha2/tofu_1.6.0-alpha2_amd64.apk'
+      }, {
+        name: 'tofu_1.6.0-alpha2_amd64.deb',
+        browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0-alpha2/tofu_1.6.0-alpha2_amd64.deb'
+      }, {
+        name: 'tofu_1.6.0-alpha2_amd64.rpm',
+        browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0-alpha2/tofu_1.6.0-alpha2_amd64.rpm'
+      }, {
+        name: 'tofu_1.6.0-alpha2_arm.apk',
+        browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0-alpha2/tofu_1.6.0-alpha2_arm.apk'
+      }, {
+        name: 'tofu_1.6.0-alpha2_arm.deb',
+        browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0-alpha2/tofu_1.6.0-alpha2_arm.deb'
+      }, {
+        name: 'tofu_1.6.0-alpha2_arm.rpm',
+        browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0-alpha2/tofu_1.6.0-alpha2_arm.rpm'
+      }, {
+        name: 'tofu_1.6.0-alpha2_arm64.apk',
+        browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0-alpha2/tofu_1.6.0-alpha2_arm64.apk'
+      }, {
+        name: 'tofu_1.6.0-alpha2_arm64.deb',
+        browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0-alpha2/tofu_1.6.0-alpha2_arm64.deb'
+      }, {
+        name: 'tofu_1.6.0-alpha2_arm64.rpm',
+        browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0-alpha2/tofu_1.6.0-alpha2_arm64.rpm'
+      }, {
+        browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0-alpha2/tofu_1.6.0-alpha2_darwin_amd64.zip'
+      }, {
+        name: 'tofu_1.6.0-alpha2_darwin_arm64.zip',
+        browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0-alpha2/tofu_1.6.0-alpha2_darwin_arm64.zip'
+      }, {
+        name: 'tofu_1.6.0-alpha2_freebsd_386.zip',
+        browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0-alpha2/tofu_1.6.0-alpha2_freebsd_386.zip'
+      }, {
+        name: 'tofu_1.6.0-alpha2_freebsd_amd64.zip',
+        browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0-alpha2/tofu_1.6.0-alpha2_freebsd_amd64.zip'
+      }, {
+        name: 'tofu_1.6.0-alpha2_freebsd_arm.zip',
+        browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0-alpha2/tofu_1.6.0-alpha2_freebsd_arm.zip'
+      }, {
+        name: 'tofu_1.6.0-alpha2_linux_386.zip',
+        browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0-alpha2/tofu_1.6.0-alpha2_linux_386.zip'
+      }, {
+        name: 'tofu_1.6.0-alpha2_linux_amd64.zip',
+        browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0-alpha2/tofu_1.6.0-alpha2_linux_amd64.zip'
+      }, {
+        name: 'tofu_1.6.0-alpha2_linux_arm.zip',
+        browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0-alpha2/tofu_1.6.0-alpha2_linux_arm.zip'
+      }, {
+        name: 'tofu_1.6.0-alpha2_linux_arm64.zip',
+        browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0-alpha2/tofu_1.6.0-alpha2_linux_arm64.zip'
+      }, {
+        name: 'tofu_1.6.0-alpha2_openbsd_386.zip',
+        browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0-alpha2/tofu_1.6.0-alpha2_openbsd_386.zip'
+      }, {
+        name: 'tofu_1.6.0-alpha2_openbsd_amd64.zip',
+        browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0-alpha2/tofu_1.6.0-alpha2_openbsd_amd64.zip'
+      }, {
+        name: 'tofu_1.6.0-alpha2_SHA256SUMS',
+        browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0-alpha2/tofu_1.6.0-alpha2_SHA256SUMS'
+      }, {
+        name: 'tofu_1.6.0-alpha2_SHA256SUMS.pem',
+        browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0-alpha2/tofu_1.6.0-alpha2_SHA256SUMS.pem'
+      }, {
+        name: 'tofu_1.6.0-alpha2_SHA256SUMS.sig',
+        browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0-alpha2/tofu_1.6.0-alpha2_SHA256SUMS.sig'
+      }, {
+        name: 'tofu_1.6.0-alpha2_solaris_amd64.zip',
+        browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0-alpha2/tofu_1.6.0-alpha2_solaris_amd64.zip'
+      }, {
+        name: 'tofu_1.6.0-alpha2_windows_386.zip',
+        browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0-alpha2/tofu_1.6.0-alpha2_windows_386.zip'
+      }, {
+        name: 'tofu_1.6.0-alpha2_windows_amd64.zip',
+        browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0-alpha2/tofu_1.6.0-alpha2_windows_amd64.zip'
+      }]
+    }, {
+      tag_name: 'v1.6.0-alpha1',
+      assets: [{
+        name: 'tofu_1.6.0-alpha1_386.apk',
+        browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0-alpha1/tofu_1.6.0-alpha1_386.apk'
+      }, {
+        name: 'tofu_1.6.0-alpha1_386.deb',
+        browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0-alpha1/tofu_1.6.0-alpha1_386.deb'
+      }, {
+        name: 'tofu_1.6.0-alpha1_386.rpm',
+        browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0-alpha1/tofu_1.6.0-alpha1_386.rpm'
+      }, {
+        name: 'tofu_1.6.0-alpha1_amd64.apk',
+        browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0-alpha1/tofu_1.6.0-alpha1_amd64.apk'
+      }, {
+        name: 'tofu_1.6.0-alpha1_amd64.deb',
+        browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0-alpha1/tofu_1.6.0-alpha1_amd64.deb'
+      }, {
+        name: 'tofu_1.6.0-alpha1_amd64.rpm',
+        browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0-alpha1/tofu_1.6.0-alpha1_amd64.rpm'
+      }, {
+        name: 'tofu_1.6.0-alpha1_arm.apk',
+        browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0-alpha1/tofu_1.6.0-alpha1_arm.apk'
+      }, {
+        name: 'tofu_1.6.0-alpha1_arm.deb',
+        browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0-alpha1/tofu_1.6.0-alpha1_arm.deb'
+      }, {
+        name: 'tofu_1.6.0-alpha1_arm.rpm',
+        browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0-alpha1/tofu_1.6.0-alpha1_arm.rpm'
+      }, {
+        name: 'tofu_1.6.0-alpha1_arm64.apk',
+        browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0-alpha1/tofu_1.6.0-alpha1_arm64.apk'
+      }, {
+        name: 'tofu_1.6.0-alpha1_arm64.deb',
+        browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0-alpha1/tofu_1.6.0-alpha1_arm64.deb'
+      }, {
+        name: 'tofu_1.6.0-alpha1_arm64.rpm',
+        browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0-alpha1/tofu_1.6.0-alpha1_arm64.rpm'
+      }, {
+        name: 'tofu_1.6.0-alpha1_darwin_amd64.zip',
+        browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0-alpha1/tofu_1.6.0-alpha1_darwin_amd64.zip'
+      }, {
+        name: 'tofu_1.6.0-alpha1_darwin_arm64.zip',
+        browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0-alpha1/tofu_1.6.0-alpha1_darwin_arm64.zip'
+      }, {
+        name: 'tofu_1.6.0-alpha1_freebsd_386.zip',
+        browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0-alpha1/tofu_1.6.0-alpha1_freebsd_386.zip'
+      }, {
+        name: 'tofu_1.6.0-alpha1_freebsd_amd64.zip',
+        browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0-alpha1/tofu_1.6.0-alpha1_freebsd_amd64.zip'
+      }, {
+        name: 'tofu_1.6.0-alpha1_freebsd_arm.zip',
+        browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0-alpha1/tofu_1.6.0-alpha1_freebsd_arm.zip'
+      }, {
+        name: 'tofu_1.6.0-alpha1_linux_386.zip',
+        browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0-alpha1/tofu_1.6.0-alpha1_linux_386.zip'
+      }, {
+        name: 'tofu_1.6.0-alpha1_linux_amd64.zip',
+        browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0-alpha1/tofu_1.6.0-alpha1_linux_amd64.zip'
+      }, {
+        name: 'tofu_1.6.0-alpha1_linux_arm.zip',
+        browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0-alpha1/tofu_1.6.0-alpha1_linux_arm.zip'
+      }, {
+        name: 'tofu_1.6.0-alpha1_linux_arm64.zip',
+        browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0-alpha1/tofu_1.6.0-alpha1_linux_arm64.zip'
+      }, {
+        name: 'tofu_1.6.0-alpha1_openbsd_386.zip',
+        browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0-alpha1/tofu_1.6.0-alpha1_openbsd_386.zip'
+      }, {
+        name: 'tofu_1.6.0-alpha1_openbsd_amd64.zip',
+        browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0-alpha1/tofu_1.6.0-alpha1_openbsd_amd64.zip'
+      }, {
+        name: 'tofu_1.6.0-alpha1_SHA256SUMS',
+        browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0-alpha1/tofu_1.6.0-alpha1_SHA256SUMS'
+      }, {
+        name: 'tofu_1.6.0-alpha1_SHA256SUMS.pem',
+        browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0-alpha1/tofu_1.6.0-alpha1_SHA256SUMS.pem'
+      }, {
+        name: 'tofu_1.6.0-alpha1_SHA256SUMS.sig',
+        browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0-alpha1/tofu_1.6.0-alpha1_SHA256SUMS.sig'
+      }, {
+        name: 'tofu_1.6.0-alpha1_solaris_amd64.zip',
+        browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0-alpha1/tofu_1.6.0-alpha1_solaris_amd64.zip'
+      }, {
+        name: 'tofu_1.6.0-alpha1_windows_386.zip',
+        browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0-alpha1/tofu_1.6.0-alpha1_windows_386.zip'
+      }, {
+        name: 'tofu_1.6.0-alpha1_windows_amd64.zip',
+        browser_download_url: 'https://github.com/opentofu/opentofu/releases/download/v1.6.0-alpha1/tofu_1.6.0-alpha1_windows_amd64.zip'
+      }]
+    }];
+
+    return mockReleasesMeta.map(el => new pkg.Release(el));
+  }
+
+  it.each(
+    [
+      ['latest', '1.6.0-alpha2'],
+      ['<1.6.0-beta', '1.6.0-alpha2'],
+      ['>1.6.0-alpha1', '1.6.0-alpha2'],
+      ['>1.6.0-alpha1 <1.6.0', '1.6.0-alpha2'],
+      ['~1.6.0-alpha', '1.6.0-alpha2'],
+      ['<=1.6.0-alpha1', '1.6.0-alpha1']
+    ]
+  )('happy path: getRelease(\'%s\') -> \'%s\'', async (input, wantVersion) => {
+    const want = mockFetchReleases().find(el => el.version === wantVersion);
+    const gotRelease = await pkg.getRelease(input, mockFetchReleases);
     expect(gotRelease).toEqual(want);
   });
 
-  it('shall return the latest release', async () => {
-    await pkg.getRelease('latest', mockFetchReleases);
+  it.each(
+    [
+      ['foo', 'Input version cannot be used, see semver: https://semver.org/spec/v2.0.0.html', undefined],
+      ['2.0', 'No matching version found', undefined],
+      ['latest', 'No tofu releases found, please contact OpenTofu', async () => { return null; }],
+      ['latest', 'No tofu releases found, please contact OpenTofu', async () => { return []; }]
+    ]
+  )('unhappy path: getRelease(\'%s\') -> throw Error(\'%s\')', async (input, wantErrorMessage, mockFetchReleasesFn) => {
+    try {
+      await pkg.getRelease(input, mockFetchReleasesFn);
+      expect(true).toBe(false);
+    } catch (e) {
+      expect(e.message).toBe(wantErrorMessage);
+    }
   });
 });