diff --git a/.eslintignore b/.eslintignore
index 9b3c437e..a6c7c285 100644
--- a/.eslintignore
+++ b/.eslintignore
@@ -1,3 +1 @@
 *.js
-test/**/index.ts
-test/**/runTest.ts
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3c093628..fe82de5f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -46,6 +46,8 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 
 ### Added
 
+- Added unittests for the formatting providers
+  ([#423](https://github.com/fortran-lang/vscode-fortran-support/issues/423))
 - Added GitHub Actions environment to dependabot
 - Adds support for Intel (ifort) and LLVM (flang) compilers
   ([#291](https://github.com/krvajal/vscode-fortran-support/issues/291))
diff --git a/test/formatting-provider.test.ts b/test/formatting-provider.test.ts
new file mode 100644
index 00000000..c8947014
--- /dev/null
+++ b/test/formatting-provider.test.ts
@@ -0,0 +1,61 @@
+import { strictEqual } from 'assert';
+import { FortranFormattingProvider } from '../src/features/formatting-provider';
+import * as vscode from 'vscode';
+import * as path from 'path';
+import { LoggingService } from '../src/services/logging-service';
+import { spawnSync } from 'child_process';
+
+suite('Formatting tests', () => {
+  let doc: vscode.TextDocument;
+  const fmt = new FortranFormattingProvider(new LoggingService());
+  const fileUri = vscode.Uri.file(
+    path.resolve(__dirname, '../../test/resources/formatting_test.f90')
+  );
+
+  suiteSetup(async function (): Promise<void> {
+    spawnSync('pip', ['install', '--user', '--upgrade', 'findent']);
+    spawnSync('pip', ['install', '--user', '--upgrade', 'fprettify']);
+    doc = await vscode.workspace.openTextDocument(fileUri);
+    await vscode.window.showTextDocument(doc);
+    console.log('Open file: ' + fileUri.toString());
+  });
+
+  test('Using findent', async () => {
+    const fmt = new FortranFormattingProvider(new LoggingService());
+    fmt['formatter'] = 'findent';
+    const edits = await fmt['doFormatFindent'](doc);
+    strictEqual(
+      edits[0].newText.toString(),
+      `program main
+   implicit none
+   integer :: i, j
+   do i = 1, 5
+      do j = 1, 5
+         if (i == j) then
+            print *, i
+         end if
+      end do
+   end do
+end program main
+`
+    );
+  });
+
+  test('Using fprettify', async () => {
+    fmt['formatter'] = 'fprettify';
+    const edits = await fmt['doFormatFprettify'](doc);
+    const ref = `program main
+   implicit none
+   integer :: i, j
+   do i = 1, 5
+   do j = 1, 5
+   if (i == j) then
+      print *, i
+   end if
+   end do
+   end do
+end program main
+`;
+    strictEqual(edits[0].newText.toString(), ref);
+  });
+});
diff --git a/test/resources/formatting_test.f90 b/test/resources/formatting_test.f90
new file mode 100644
index 00000000..8050bc4d
--- /dev/null
+++ b/test/resources/formatting_test.f90
@@ -0,0 +1,11 @@
+program main
+implicit none
+integer :: i, j
+do i = 1, 5
+do j = 1, 5
+if (i == j) then
+print *, i
+end if
+end do
+end do
+end program main
\ No newline at end of file
diff --git a/test/resources/formatting_test.f90.snap b/test/resources/formatting_test.f90.snap
new file mode 100644
index 00000000..bcb34e9a
--- /dev/null
+++ b/test/resources/formatting_test.f90.snap
@@ -0,0 +1,64 @@
+>program main
+#^^^^^^^ source.fortran.free meta.program.fortran keyword.control.program.fortran
+#       ^ source.fortran.free meta.program.fortran
+#        ^^^^ source.fortran.free meta.program.fortran entity.name.program.fortran
+>implicit none
+#^^^^^^^^ source.fortran.free meta.program.fortran meta.block.specification.program.fortran meta.statement.implicit.fortran keyword.other.implicit.fortran
+#        ^ source.fortran.free meta.program.fortran meta.block.specification.program.fortran meta.statement.implicit.fortran
+#         ^^^^ source.fortran.free meta.program.fortran meta.block.specification.program.fortran meta.statement.implicit.fortran keyword.other.none.fortran
+>integer :: i, j
+#^^^^^^^ source.fortran.free meta.program.fortran meta.block.specification.program.fortran meta.specification.type.fortran storage.type.integer.fortran
+#       ^ source.fortran.free meta.program.fortran meta.block.specification.program.fortran meta.specification.type.fortran meta.attribute-list.type-specification-statements.fortran
+#        ^^ source.fortran.free meta.program.fortran meta.block.specification.program.fortran meta.specification.type.fortran keyword.operator.double-colon.fortran
+#          ^ source.fortran.free meta.program.fortran meta.block.specification.program.fortran meta.specification.type.fortran meta.name-list.fortran
+#           ^ source.fortran.free meta.program.fortran meta.block.specification.program.fortran meta.specification.type.fortran meta.name-list.fortran meta.parameter.fortran
+#            ^^ source.fortran.free meta.program.fortran meta.block.specification.program.fortran meta.specification.type.fortran meta.name-list.fortran
+#              ^ source.fortran.free meta.program.fortran meta.block.specification.program.fortran meta.specification.type.fortran meta.name-list.fortran meta.parameter.fortran
+>do i = 1, 5
+#^^ source.fortran.free meta.program.fortran meta.block.specification.program.fortran meta.block.do.unlabeled.fortran keyword.control.do.fortran
+#  ^ source.fortran.free meta.program.fortran meta.block.specification.program.fortran meta.block.do.unlabeled.fortran meta.loop-control.fortran
+#   ^ source.fortran.free meta.program.fortran meta.block.specification.program.fortran meta.block.do.unlabeled.fortran meta.loop-control.fortran meta.parameter.fortran
+#    ^ source.fortran.free meta.program.fortran meta.block.specification.program.fortran meta.block.do.unlabeled.fortran meta.loop-control.fortran
+#     ^ source.fortran.free meta.program.fortran meta.block.specification.program.fortran meta.block.do.unlabeled.fortran meta.loop-control.fortran keyword.operator.assignment.fortran
+#      ^ source.fortran.free meta.program.fortran meta.block.specification.program.fortran meta.block.do.unlabeled.fortran meta.loop-control.fortran
+#       ^ source.fortran.free meta.program.fortran meta.block.specification.program.fortran meta.block.do.unlabeled.fortran meta.loop-control.fortran constant.numeric.fortran
+#        ^^ source.fortran.free meta.program.fortran meta.block.specification.program.fortran meta.block.do.unlabeled.fortran meta.loop-control.fortran
+#          ^ source.fortran.free meta.program.fortran meta.block.specification.program.fortran meta.block.do.unlabeled.fortran meta.loop-control.fortran constant.numeric.fortran
+>do j = 1, 5
+#^^ source.fortran.free meta.program.fortran meta.block.specification.program.fortran meta.block.do.unlabeled.fortran meta.block.do.unlabeled.fortran keyword.control.do.fortran
+#  ^ source.fortran.free meta.program.fortran meta.block.specification.program.fortran meta.block.do.unlabeled.fortran meta.block.do.unlabeled.fortran meta.loop-control.fortran
+#   ^ source.fortran.free meta.program.fortran meta.block.specification.program.fortran meta.block.do.unlabeled.fortran meta.block.do.unlabeled.fortran meta.loop-control.fortran meta.parameter.fortran
+#    ^ source.fortran.free meta.program.fortran meta.block.specification.program.fortran meta.block.do.unlabeled.fortran meta.block.do.unlabeled.fortran meta.loop-control.fortran
+#     ^ source.fortran.free meta.program.fortran meta.block.specification.program.fortran meta.block.do.unlabeled.fortran meta.block.do.unlabeled.fortran meta.loop-control.fortran keyword.operator.assignment.fortran
+#      ^ source.fortran.free meta.program.fortran meta.block.specification.program.fortran meta.block.do.unlabeled.fortran meta.block.do.unlabeled.fortran meta.loop-control.fortran
+#       ^ source.fortran.free meta.program.fortran meta.block.specification.program.fortran meta.block.do.unlabeled.fortran meta.block.do.unlabeled.fortran meta.loop-control.fortran constant.numeric.fortran
+#        ^^ source.fortran.free meta.program.fortran meta.block.specification.program.fortran meta.block.do.unlabeled.fortran meta.block.do.unlabeled.fortran meta.loop-control.fortran
+#          ^ source.fortran.free meta.program.fortran meta.block.specification.program.fortran meta.block.do.unlabeled.fortran meta.block.do.unlabeled.fortran meta.loop-control.fortran constant.numeric.fortran
+>if (i == j) then
+#^^ source.fortran.free meta.program.fortran meta.block.specification.program.fortran meta.block.do.unlabeled.fortran meta.block.do.unlabeled.fortran keyword.control.if.fortran
+#  ^ source.fortran.free meta.program.fortran meta.block.specification.program.fortran meta.block.do.unlabeled.fortran meta.block.do.unlabeled.fortran meta.expression.control.logical.fortran
+#   ^ source.fortran.free meta.program.fortran meta.block.specification.program.fortran meta.block.do.unlabeled.fortran meta.block.do.unlabeled.fortran meta.expression.control.logical.fortran punctuation.parentheses.left.fortran
+#    ^ source.fortran.free meta.program.fortran meta.block.specification.program.fortran meta.block.do.unlabeled.fortran meta.block.do.unlabeled.fortran meta.expression.control.logical.fortran meta.parameter.fortran
+#     ^ source.fortran.free meta.program.fortran meta.block.specification.program.fortran meta.block.do.unlabeled.fortran meta.block.do.unlabeled.fortran meta.expression.control.logical.fortran
+#      ^^ source.fortran.free meta.program.fortran meta.block.specification.program.fortran meta.block.do.unlabeled.fortran meta.block.do.unlabeled.fortran meta.expression.control.logical.fortran keyword.logical.fortran.modern
+#        ^ source.fortran.free meta.program.fortran meta.block.specification.program.fortran meta.block.do.unlabeled.fortran meta.block.do.unlabeled.fortran meta.expression.control.logical.fortran
+#         ^ source.fortran.free meta.program.fortran meta.block.specification.program.fortran meta.block.do.unlabeled.fortran meta.block.do.unlabeled.fortran meta.expression.control.logical.fortran meta.parameter.fortran
+#          ^ source.fortran.free meta.program.fortran meta.block.specification.program.fortran meta.block.do.unlabeled.fortran meta.block.do.unlabeled.fortran meta.expression.control.logical.fortran punctuation.parentheses.right.fortran
+#           ^ source.fortran.free meta.program.fortran meta.block.specification.program.fortran meta.block.do.unlabeled.fortran meta.block.do.unlabeled.fortran
+#            ^^^^ source.fortran.free meta.program.fortran meta.block.specification.program.fortran meta.block.do.unlabeled.fortran meta.block.do.unlabeled.fortran keyword.control.then.fortran
+>print *, i
+#^^^^^ source.fortran.free meta.program.fortran meta.block.specification.program.fortran meta.block.do.unlabeled.fortran meta.block.do.unlabeled.fortran meta.block.if.fortran keyword.control.print.fortran
+#     ^ source.fortran.free meta.program.fortran meta.block.specification.program.fortran meta.block.do.unlabeled.fortran meta.block.do.unlabeled.fortran meta.block.if.fortran
+#      ^ source.fortran.free meta.program.fortran meta.block.specification.program.fortran meta.block.do.unlabeled.fortran meta.block.do.unlabeled.fortran meta.block.if.fortran keyword.operator.power.fortran
+#       ^^ source.fortran.free meta.program.fortran meta.block.specification.program.fortran meta.block.do.unlabeled.fortran meta.block.do.unlabeled.fortran meta.block.if.fortran
+#         ^ source.fortran.free meta.program.fortran meta.block.specification.program.fortran meta.block.do.unlabeled.fortran meta.block.do.unlabeled.fortran meta.block.if.fortran meta.parameter.fortran
+>end if
+#^^^^^^ source.fortran.free meta.program.fortran meta.block.specification.program.fortran meta.block.do.unlabeled.fortran meta.block.do.unlabeled.fortran keyword.control.endif.fortran
+>end do
+#^^^^^^ source.fortran.free meta.program.fortran meta.block.specification.program.fortran meta.block.do.unlabeled.fortran meta.block.do.unlabeled.fortran keyword.control.enddo.fortran
+>end do
+#^^^^^^ source.fortran.free meta.program.fortran meta.block.specification.program.fortran meta.block.do.unlabeled.fortran keyword.control.enddo.fortran
+>end program main
+#^^^^^^^^^^^ source.fortran.free meta.program.fortran keyword.control.endprogram.fortran
+#           ^ source.fortran.free meta.program.fortran
+#            ^^^^ source.fortran.free meta.program.fortran entity.name.program.fortran
\ No newline at end of file
diff --git a/test/runTest.ts b/test/runTest.ts
index b7d75a77..0d34d797 100644
--- a/test/runTest.ts
+++ b/test/runTest.ts
@@ -6,13 +6,13 @@ async function main() {
   try {
     // The folder containing the Extension Manifest package.json
     // Passed to `--extensionDevelopmentPath`
-    const extensionDevelopmentPath = path.resolve(__dirname, '../');
+    const extensionDevelopmentPath = path.resolve(__dirname, '../../');
 
     // The path to the extension test runner script
     // Passed to --extensionTestsPath
     const extensionTestsPath = path.resolve(__dirname, './index');
 
-    const launchArgs = ['--disable-extensions', '--install-extension ms-vscode.cpptools'];
+    const launchArgs = ['--disable-extensions', '--install-extension', 'ms-vscode.cpptools'];
     // Download VS Code, unzip it and run the integration test
     await runTests({
       launchArgs,