diff --git a/.github/workflows/onPushToMain.yml b/.github/workflows/onPushToMain.yml
index c2babc3..d3c3a77 100644
--- a/.github/workflows/onPushToMain.yml
+++ b/.github/workflows/onPushToMain.yml
@@ -11,6 +11,11 @@ jobs:
     steps:
       - uses: actions/checkout@v4
       - uses: actions/setup-node@v4
+        with:
+          node-version: latest
+      - run: |
+           npm install -g corepack --force
+           corepack enable
       - name: Check if version already exists
         id: version-check
         run: |
diff --git a/.github/workflows/onRelease.yml b/.github/workflows/onRelease.yml
index 12c9cf2..680809c 100644
--- a/.github/workflows/onRelease.yml
+++ b/.github/workflows/onRelease.yml
@@ -12,6 +12,9 @@ jobs:
       - uses: actions/setup-node@v4
         with:
           node-version: latest
+      - run: |
+           npm install -g corepack --force
+           corepack enable
       - run: yarn
       - uses: JS-DevTools/npm-publish@19c28f1ef146469e409470805ea4279d47c3d35c
         with:
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index c0a2b4a..b10cf29 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -17,7 +17,9 @@ jobs:
       - uses: actions/setup-node@v4
         with:
           node-version: ${{ matrix.node_version }}
-          cache: yarn
+      - run: |
+           npm install -g corepack --force
+           corepack enable
       - run: yarn
       - run: yarn build
       - run: yarn test
diff --git a/src/commands/commit/index.ts b/src/commands/commit/index.ts
index 5488938..5579b5c 100644
--- a/src/commands/commit/index.ts
+++ b/src/commands/commit/index.ts
@@ -43,81 +43,90 @@ export default class Commit extends Command {
 
     this.log(`[tf-patch] Found module "${module}"`)
 
-    dir({keep: false, unsafeCleanup: true}, async (err, dirA, cleanup) => {
-      if (err) {
-        throw err
-      }
-
-      await fse.copy(moduleDir, dirA)
-      await fse.remove(path.join(dirA, '.git'))
-
-      this.log(`[tf-patch] Diffing source module and patch dir: \nA: ${dirA}\nB: ${dirB}`)
-      // Using yarn as reference - https://github.com/yarnpkg/berry/blob/7fab4f101d1b8a98691efe14696d18ce00ecd234/packages/plugin-patch/sources/patchUtils.ts#L281-L298
-      const gitDiff = await spawn(
-        `git`,
-        [
-          `-c`,
-          `core.safecrlf=false`,
-          `diff`,
-          `--src-prefix=a/`,
-          `--dst-prefix=b/`,
-          `--ignore-cr-at-eol`,
-          `--full-index`,
-          `--no-index`,
-          `--no-renames`,
-          `--text`,
-          dirA,
-          dirB,
-        ],
-        {
-          env: {
-            ...process.env,
-            // #region Predictable output
-            // These variables aim to ignore the global git config so we get predictable output
-            // https://git-scm.com/docs/git#Documentation/git.txt-codeGITCONFIGNOSYSTEMcode
-            GIT_CONFIG_NOSYSTEM: `1`,
-            HOME: ``,
-            USERPROFILE: ``,
-            XDG_CONFIG_HOME: ``,
-            // #endregion
-          },
-        },
-      )
-      const stderr = (await gitDiff.stderr.toArray()).join('\n')
-      // we cannot rely on exit code, because --no-index implies --exit-code
-      // i.e. git diff will exit with 1 if there were differences
-      if (stderr.length > 0) {
-        throw new Error(
-          `Unable to diff directories. Make sure you have a recent version of 'git' available in PATH.\nThe following error was reported by 'git':\n${stderr}`,
-        )
-      }
-
-      const controller = new AbortController()
-      const timer = setTimeout(() => {
-        this.log('[tf-patch] Timed out creating patch')
-        controller.abort()
-      }, 10_000)
-      const stdoutArr = await gitDiff.stdout.toArray({signal: controller.signal})
-      clearTimeout(timer)
-
-      const stdout = stdoutArr
-        .join('\n')
-        .replace(new RegExp(`(a|b)(${_.escapeRegExp(`/${normalizePath(dirA)}/`)})`, `g`), `$1/`)
-        .replace(new RegExp(`(a|b)${_.escapeRegExp(`/${normalizePath(dirB)}/`)}`, `g`), `$1/`)
-        .replace(new RegExp(_.escapeRegExp(`${dirA}/`), `g`), ``)
-        .replace(new RegExp(_.escapeRegExp(`${dirB}/`), `g`), ``)
-
-      if (!stdout.trim()) {
-        throw new Error(`No changes detected in module "${module}"`)
-      }
-
-      await fse.ensureDir(PATCHES_DIR)
-      const patchFile = path.join(PATCHES_DIR, `${module}.patch`)
-      await writeFile(patchFile, stdout)
-      this.log(`[tf-patch] Created patch file: ${patchFile}`)
-      this.log(`[tf-patch] Now you can apply the patches after "terraform init" by running "tf-patch init"`)
-
-      cleanup()
+    await new Promise<void>((resolve, reject) => {
+      dir({keep: false, unsafeCleanup: true}, async (err, dirA, cleanup) => {
+        if (err) {
+          reject(err)
+          return
+        }
+
+        try {
+          await fse.copy(moduleDir, dirA)
+          await fse.remove(path.join(dirA, '.git'))
+
+          this.log(`[tf-patch] Diffing source module and patch dir: \nA: ${dirA}\nB: ${dirB}`)
+          // Using yarn as reference - https://github.com/yarnpkg/berry/blob/7fab4f101d1b8a98691efe14696d18ce00ecd234/packages/plugin-patch/sources/patchUtils.ts#L281-L298
+          const gitDiff = await spawn(
+            `git`,
+            [
+              `-c`,
+              `core.safecrlf=false`,
+              `diff`,
+              `--src-prefix=a/`,
+              `--dst-prefix=b/`,
+              `--ignore-cr-at-eol`,
+              `--full-index`,
+              `--no-index`,
+              `--no-renames`,
+              `--text`,
+              dirA,
+              dirB,
+            ],
+            {
+              env: {
+                ...process.env,
+                // #region Predictable output
+                // These variables aim to ignore the global git config so we get predictable output
+                // https://git-scm.com/docs/git#Documentation/git.txt-codeGITCONFIGNOSYSTEMcode
+                GIT_CONFIG_NOSYSTEM: `1`,
+                HOME: ``,
+                USERPROFILE: ``,
+                XDG_CONFIG_HOME: ``,
+                // #endregion
+              },
+            },
+          )
+          const stderr = (await gitDiff.stderr.toArray()).join('\n')
+          // we cannot rely on exit code, because --no-index implies --exit-code
+          // i.e. git diff will exit with 1 if there were differences
+          if (stderr.length > 0) {
+            throw new Error(
+              `Unable to diff directories. Make sure you have a recent version of 'git' available in PATH.\nThe following error was reported by 'git':\n${stderr}`,
+            )
+          }
+
+          const controller = new AbortController()
+          const timer = setTimeout(() => {
+            this.log('[tf-patch] Timed out creating patch')
+            controller.abort()
+          }, 10_000)
+          const stdoutArr = await gitDiff.stdout.toArray({signal: controller.signal})
+          clearTimeout(timer)
+
+          const stdout = stdoutArr
+            .join('\n')
+            .replace(new RegExp(`(a|b)(${_.escapeRegExp(`/${normalizePath(dirA)}/`)})`, `g`), `$1/`)
+            .replace(new RegExp(`(a|b)${_.escapeRegExp(`/${normalizePath(dirB)}/`)}`, `g`), `$1/`)
+            .replace(new RegExp(_.escapeRegExp(`${dirA}/`), `g`), ``)
+            .replace(new RegExp(_.escapeRegExp(`${dirB}/`), `g`), ``)
+
+          if (!stdout.trim()) {
+            throw new Error(`No changes detected in module "${module}"`)
+          }
+
+          await fse.ensureDir(PATCHES_DIR)
+          const patchFile = path.join(PATCHES_DIR, `${module}.patch`)
+          await writeFile(patchFile, stdout)
+          this.log(`[tf-patch] Created patch file: ${patchFile}`)
+          this.log(`[tf-patch] Now you can apply the patches after "terraform init" by running "tf-patch init"`)
+
+          cleanup()
+          resolve()
+        } catch (error) {
+          cleanup()
+          reject(error)
+        }
+      })
     })
   }
 }
diff --git a/src/commands/patch/index.ts b/src/commands/patch/index.ts
index e6721a7..9461bc5 100644
--- a/src/commands/patch/index.ts
+++ b/src/commands/patch/index.ts
@@ -37,27 +37,35 @@ intended to be editable at will.`
       throw new Error(`Module "${module}" not found in terraform modules directory`)
     }
 
-    dir(async (err, tmpDir) => {
-      if (err) {
-        throw err
-      }
-
-      await writeFile(
-        path.join(tmpDir, PATCH_DATA_FILE),
-        JSON.stringify({
-          module,
-        }),
-      )
-
-      const tmpModule = path.join(tmpDir, 'module')
-      await fse.ensureDir(tmpModule)
-      await fse.copy(moduleDir, tmpModule)
-      await fse.remove(path.join(tmpModule, '.git'))
-
-      this.log(`[tf-patch] You can now edit the following folder: ${tmpModule}`)
-      this.log(
-        `[tf-patch] Once you are done run "tf-patch commit ${tmpModule}" and we will store a patchfile based on your changes.`,
-      )
+    await new Promise<void>((resolve, reject) => {
+      dir(async (err, tmpDir) => {
+        if (err) {
+          reject(err)
+          return
+        }
+
+        try {
+          await writeFile(
+            path.join(tmpDir, PATCH_DATA_FILE),
+            JSON.stringify({
+              module,
+            }),
+          )
+
+          const tmpModule = path.join(tmpDir, 'module')
+          await fse.ensureDir(tmpModule)
+          await fse.copy(moduleDir, tmpModule)
+          await fse.remove(path.join(tmpModule, '.git'))
+
+          this.log(`[tf-patch] You can now edit the following folder: ${tmpModule}`)
+          this.log(
+            `[tf-patch] Once you are done run "tf-patch commit ${tmpModule}" and we will store a patchfile based on your changes.`,
+          )
+          resolve()
+        } catch (error) {
+          reject(error)
+        }
+      })
     })
   }
 }
diff --git a/test/commands/commit/index.test.ts b/test/commands/commit/index.test.ts
new file mode 100644
index 0000000..f563bd7
--- /dev/null
+++ b/test/commands/commit/index.test.ts
@@ -0,0 +1,61 @@
+import {runCommand} from '@oclif/test'
+import {expect} from 'chai'
+import * as fse from 'fs-extra'
+import {mkdtempSync} from 'node:fs'
+import {readFile, writeFile} from 'node:fs/promises'
+import {tmpdir} from 'node:os'
+import path from 'node:path'
+
+import {PATCHES_DIR} from '../../../src/commands/commit/index.js'
+import {PATCH_DATA_FILE, TERRAFORM_MODULES_DIR} from '../../../src/commands/patch/index.js'
+
+describe('commit', () => {
+  let tmpDir: string
+  let originalCwd: string
+
+  before(() => {
+    originalCwd = process.cwd()
+    tmpDir = mkdtempSync(path.join(tmpdir(), 'tf-patch-commit-test-'))
+  })
+
+  after(async () => {
+    process.chdir(originalCwd)
+    await fse.remove(tmpDir)
+  })
+
+  it('throws an error when folder is not found', async () => {
+    const {error} = await runCommand('commit /nonexistent-folder-xyz-abc')
+    expect(error?.message).to.contain('not found')
+  })
+
+  it('creates a patch file from a modified module', async () => {
+    process.chdir(tmpDir)
+
+    const module = 'test-module'
+    const moduleDir = path.join(tmpDir, TERRAFORM_MODULES_DIR, module)
+    await fse.ensureDir(moduleDir)
+    await writeFile(path.join(moduleDir, 'main.tf'), 'resource "null_resource" "original" {}\n')
+
+    // Create the patched folder that commit expects
+    const patchedDir = mkdtempSync(path.join(tmpdir(), 'tf-patch-patched-'))
+    const moduleFolder = path.join(patchedDir, 'module')
+    await fse.ensureDir(moduleFolder)
+    await writeFile(path.join(moduleFolder, 'main.tf'), 'resource "null_resource" "modified" {}\n')
+    await writeFile(
+      path.join(patchedDir, PATCH_DATA_FILE),
+      JSON.stringify({module}),
+    )
+
+    try {
+      const {stdout} = await runCommand(`commit ${moduleFolder}`)
+      expect(stdout).to.contain('Created patch file')
+      const patchFile = path.join(tmpDir, PATCHES_DIR, `${module}.patch`)
+      expect(await fse.pathExists(patchFile)).to.equal(true)
+      const patchContent = await readFile(patchFile, 'utf8')
+      expect(patchContent).to.contain('original')
+      expect(patchContent).to.contain('modified')
+    } finally {
+      await fse.remove(patchedDir)
+    }
+  })
+})
diff --git a/test/commands/hello/index.test.ts b/test/commands/hello/index.test.ts
deleted file mode 100644
index dad0ac3..0000000
--- a/test/commands/hello/index.test.ts
+++ /dev/null
@@ -1,9 +0,0 @@
-import {runCommand} from '@oclif/test'
-import {expect} from 'chai'
-
-describe('hello', () => {
-  it('runs hello', async () => {
-    const {stdout} = await runCommand('hello friend --from oclif')
-    expect(stdout).to.contain('hello friend from oclif!')
-  })
-})
diff --git a/test/commands/hello/world.test.ts b/test/commands/hello/world.test.ts
deleted file mode 100644
index 0f5e90f..0000000
--- a/test/commands/hello/world.test.ts
+++ /dev/null
@@ -1,9 +0,0 @@
-import {runCommand} from '@oclif/test'
-import {expect} from 'chai'
-
-describe('hello world', () => {
-  it('runs hello world cmd', async () => {
-    const {stdout} = await runCommand('hello world')
-    expect(stdout).to.contain('hello world!')
-  })
-})
diff --git a/test/commands/init/index.test.ts b/test/commands/init/index.test.ts
new file mode 100644
index 0000000..826d552
--- /dev/null
+++ b/test/commands/init/index.test.ts
@@ -0,0 +1,83 @@
+import {runCommand} from '@oclif/test'
+import {expect} from 'chai'
+import * as fse from 'fs-extra'
+import {mkdtempSync} from 'node:fs'
+import {readFile, writeFile} from 'node:fs/promises'
+import {tmpdir} from 'node:os'
+import path from 'node:path'
+
+import {PATCHES_DIR} from '../../../src/commands/commit/index.js'
+import {TERRAFORM_MODULES_DIR} from '../../../src/commands/patch/index.js'
+
+const SAMPLE_PATCH = `diff --git a/main.tf b/main.tf
+index abc1234..def5678 100644
+--- a/main.tf
++++ b/main.tf
+@@ -1,3 +1,3 @@
+ resource "null_resource" "example" {
+-  triggers = {}
++  triggers = { always_run = true }
+ }
+`
+
+describe('init', () => {
+  let tmpDir: string
+  let originalCwd: string
+
+  before(() => {
+    originalCwd = process.cwd()
+  })
+
+  beforeEach(() => {
+    tmpDir = mkdtempSync(path.join(tmpdir(), 'tf-patch-init-test-'))
+    process.chdir(tmpDir)
+  })
+
+  afterEach(async () => {
+    process.chdir(originalCwd)
+    await fse.remove(tmpDir)
+  })
+
+  it('throws an error when no patches are found', async () => {
+    const {error} = await runCommand('init')
+    expect(error?.message).to.contain('No terraform module patches found')
+  })
+
+  it('throws an error when module does not exist', async () => {
+    await fse.ensureDir(path.join(tmpDir, PATCHES_DIR))
+    await writeFile(path.join(tmpDir, PATCHES_DIR, 'missing-module.patch'), SAMPLE_PATCH)
+
+    const {error} = await runCommand('init')
+    expect(error?.message).to.contain('missing-module')
+    expect(error?.message).to.contain('does not exist')
+  })
+
+  it('applies a patch to a terraform module', async () => {
+    const module = 'apply-test-module'
+    const moduleDir = path.join(tmpDir, TERRAFORM_MODULES_DIR, module)
+    await fse.ensureDir(moduleDir)
+    await writeFile(
+      path.join(moduleDir, 'main.tf'),
+      'resource "null_resource" "example" {\n  triggers = {}\n}\n',
+    )
+
+    const patch = `diff --git a/main.tf b/main.tf
+index abc1234..def5678 100644
+--- a/main.tf
++++ b/main.tf
+@@ -1,3 +1,3 @@
+ resource "null_resource" "example" {
+-  triggers = {}
++  triggers = { always_run = true }
+ }
+`
+    await fse.ensureDir(path.join(tmpDir, PATCHES_DIR))
+    await writeFile(path.join(tmpDir, PATCHES_DIR, `${module}.patch`), patch)
+
+    const {stdout} = await runCommand('init')
+    expect(stdout).to.contain(`Updated module, "${module}"`)
+
+    const updated = await readFile(path.join(moduleDir, 'main.tf'), 'utf8')
+    expect(updated).to.contain('always_run = true')
+  })
+})
diff --git a/test/commands/patch/index.test.ts b/test/commands/patch/index.test.ts
new file mode 100644
index 0000000..534ef63
--- /dev/null
+++ b/test/commands/patch/index.test.ts
@@ -0,0 +1,41 @@
+import {runCommand} from '@oclif/test'
+import {expect} from 'chai'
+import * as fse from 'fs-extra'
+import {mkdtempSync} from 'node:fs'
+import {writeFile} from 'node:fs/promises'
+import {tmpdir} from 'node:os'
+import path from 'node:path'
+
+import {TERRAFORM_MODULES_DIR} from '../../../src/commands/patch/index.js'
+
+describe('patch', () => {
+  let tmpDir: string
+  let originalCwd: string
+
+  before(() => {
+    originalCwd = process.cwd()
+    tmpDir = mkdtempSync(path.join(tmpdir(), 'tf-patch-test-'))
+  })
+
+  after(async () => {
+    process.chdir(originalCwd)
+    await fse.remove(tmpDir)
+  })
+
+  it('throws an error when module is not found', async () => {
+    process.chdir(tmpDir)
+    const {error} = await runCommand('patch nonexistent-module-xyz')
+    expect(error?.message).to.contain('not found in terraform modules directory')
+  })
+
+  it('creates a tmp module folder and patch data file for a valid module', async () => {
+    process.chdir(tmpDir)
+    const moduleDir = path.join(tmpDir, TERRAFORM_MODULES_DIR, 'my-module')
+    await fse.ensureDir(moduleDir)
+    await writeFile(path.join(moduleDir, 'main.tf'), 'resource "null_resource" "example" {}')
+
+    const {stdout} = await runCommand('patch my-module')
+    expect(stdout).to.contain('You can now edit the following folder')
+    expect(stdout).to.contain('tf-patch commit')
+  })
+})