diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
new file mode 100644
index 0000000..35ce637
--- /dev/null
+++ b/.github/workflows/ci.yml
@@ -0,0 +1,40 @@
+name: ci
+
+on:
+  pull_request:
+    branches: [ '*' ]
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  build:
+    name: build-${{ matrix.os }}
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os:
+          - ubuntu-latest
+          - macOS-latest
+          - windows-latest
+    steps:
+      - name: Check out repo
+        uses: actions/checkout@v4
+
+      - name: Setup Pixi
+        uses: prefix-dev/setup-pixi@v0.8.1
+        with:
+          manifest-path: pixi.toml
+
+      - name: Setup gfortran
+        uses: fortran-lang/setup-fortran@v1
+        with:
+          compiler: gcc
+
+      - name: Build GFLOW executable
+        run: pixi run build-release-gfortran
+
+      - name: Run Tests
+        run: pixi run test
diff --git a/.gitignore b/.gitignore
index 24c552c..e3f64ab 100644
--- a/.gitignore
+++ b/.gitignore
@@ -36,4 +36,9 @@
 *.egg-info
 
 # Visual Studio Code
-.vscode/settings.json
\ No newline at end of file
+.vscode/settings.json
+
+# Python byte-compiled / optimized / DLL files
+__pycache__/
+*.py[cod]
+*$py.class
\ No newline at end of file
diff --git a/meson.build b/meson.build
index 9464641..a4a7de8 100644
--- a/meson.build
+++ b/meson.build
@@ -108,9 +108,12 @@ src = [
     'src/wlserv.for',
 ]
 incdir = include_directories('./src')
+project_bin_dir = join_paths(meson.current_source_dir(), 'bin')
 executable(
     'gflow2',
     sources: [main_file] + src,
     include_directories: incdir,
     fortran_args : compile_args,
+    install: true,
+    install_dir: project_bin_dir,
 )
\ No newline at end of file
diff --git a/pixi.lock b/pixi.lock
index b20bb5d..f1b3c63 100644
--- a/pixi.lock
+++ b/pixi.lock
@@ -9,7 +9,10 @@ environments:
       - conda: https://conda.anaconda.org/conda-forge/linux-64/_openmp_mutex-4.5-2_gnu.tar.bz2
       - conda: https://conda.anaconda.org/conda-forge/linux-64/bzip2-1.0.8-h4bc722e_7.conda
       - conda: https://conda.anaconda.org/conda-forge/linux-64/ca-certificates-2024.7.4-hbcca054_0.conda
+      - conda: https://conda.anaconda.org/conda-forge/noarch/colorama-0.4.6-pyhd8ed1ab_0.tar.bz2
+      - conda: https://conda.anaconda.org/conda-forge/noarch/exceptiongroup-1.2.2-pyhd8ed1ab_0.conda
       - conda: https://conda.anaconda.org/conda-forge/linux-64/fortls-3.1.2-py312h7900ff3_0.conda
+      - conda: https://conda.anaconda.org/conda-forge/noarch/iniconfig-2.0.0-pyhd8ed1ab_0.conda
       - conda: https://conda.anaconda.org/conda-forge/noarch/json5-0.9.25-pyhd8ed1ab_0.conda
       - conda: https://conda.anaconda.org/conda-forge/linux-64/ld_impl_linux-64-2.40-hf3520f5_7.conda
       - conda: https://conda.anaconda.org/conda-forge/linux-64/libexpat-2.6.2-h59595ed_0.conda
@@ -22,23 +25,29 @@ environments:
       - conda: https://conda.anaconda.org/conda-forge/linux-64/libuuid-2.38.1-h0b41bf4_0.conda
       - conda: https://conda.anaconda.org/conda-forge/linux-64/libxcrypt-4.4.36-hd590300_1.conda
       - conda: https://conda.anaconda.org/conda-forge/linux-64/libzlib-1.3.1-h4ab18f5_1.conda
-      - conda: https://conda.anaconda.org/conda-forge/noarch/meson-1.5.0-pyhd8ed1ab_0.conda
+      - conda: https://conda.anaconda.org/conda-forge/noarch/meson-1.5.1-pyhd8ed1ab_0.conda
       - conda: https://conda.anaconda.org/conda-forge/linux-64/ncurses-6.5-h59595ed_0.conda
       - conda: https://conda.anaconda.org/conda-forge/linux-64/ninja-1.12.1-h297d8ca_0.conda
       - conda: https://conda.anaconda.org/conda-forge/linux-64/openssl-3.3.1-h4bc722e_2.conda
       - conda: https://conda.anaconda.org/conda-forge/noarch/packaging-24.1-pyhd8ed1ab_0.conda
+      - conda: https://conda.anaconda.org/conda-forge/noarch/pluggy-1.5.0-pyhd8ed1ab_0.conda
+      - conda: https://conda.anaconda.org/conda-forge/noarch/pytest-8.3.2-pyhd8ed1ab_0.conda
       - conda: https://conda.anaconda.org/conda-forge/linux-64/python-3.12.4-h194c7f8_0_cpython.conda
       - conda: https://conda.anaconda.org/conda-forge/linux-64/python_abi-3.12-4_cp312.conda
       - conda: https://conda.anaconda.org/conda-forge/linux-64/readline-8.2-h8228510_1.conda
-      - conda: https://conda.anaconda.org/conda-forge/noarch/setuptools-70.3.0-pyhd8ed1ab_0.conda
+      - conda: https://conda.anaconda.org/conda-forge/noarch/setuptools-71.0.4-pyhd8ed1ab_0.conda
       - conda: https://conda.anaconda.org/conda-forge/linux-64/tk-8.6.13-noxft_h4845f30_101.conda
+      - conda: https://conda.anaconda.org/conda-forge/noarch/tomli-2.0.1-pyhd8ed1ab_0.tar.bz2
       - conda: https://conda.anaconda.org/conda-forge/noarch/tzdata-2024a-h0c530f3_0.conda
       - conda: https://conda.anaconda.org/conda-forge/linux-64/xz-5.2.6-h166bdaf_0.tar.bz2
       linux-aarch64:
       - conda: https://conda.anaconda.org/conda-forge/linux-aarch64/_openmp_mutex-4.5-2_gnu.tar.bz2
       - conda: https://conda.anaconda.org/conda-forge/linux-aarch64/bzip2-1.0.8-h68df207_7.conda
       - conda: https://conda.anaconda.org/conda-forge/linux-aarch64/ca-certificates-2024.7.4-hcefe29a_0.conda
+      - conda: https://conda.anaconda.org/conda-forge/noarch/colorama-0.4.6-pyhd8ed1ab_0.tar.bz2
+      - conda: https://conda.anaconda.org/conda-forge/noarch/exceptiongroup-1.2.2-pyhd8ed1ab_0.conda
       - conda: https://conda.anaconda.org/conda-forge/linux-aarch64/fortls-3.1.2-py312h996f985_0.conda
+      - conda: https://conda.anaconda.org/conda-forge/noarch/iniconfig-2.0.0-pyhd8ed1ab_0.conda
       - conda: https://conda.anaconda.org/conda-forge/noarch/json5-0.9.25-pyhd8ed1ab_0.conda
       - conda: https://conda.anaconda.org/conda-forge/linux-aarch64/ld_impl_linux-aarch64-2.40-h9fc2d93_7.conda
       - conda: https://conda.anaconda.org/conda-forge/linux-aarch64/libexpat-2.6.2-h2f0025b_0.conda
@@ -51,79 +60,100 @@ environments:
       - conda: https://conda.anaconda.org/conda-forge/linux-aarch64/libuuid-2.38.1-hb4cce97_0.conda
       - conda: https://conda.anaconda.org/conda-forge/linux-aarch64/libxcrypt-4.4.36-h31becfc_1.conda
       - conda: https://conda.anaconda.org/conda-forge/linux-aarch64/libzlib-1.3.1-h68df207_1.conda
-      - conda: https://conda.anaconda.org/conda-forge/noarch/meson-1.5.0-pyhd8ed1ab_0.conda
+      - conda: https://conda.anaconda.org/conda-forge/noarch/meson-1.5.1-pyhd8ed1ab_0.conda
       - conda: https://conda.anaconda.org/conda-forge/linux-aarch64/ncurses-6.5-h0425590_0.conda
       - conda: https://conda.anaconda.org/conda-forge/linux-aarch64/ninja-1.12.1-h70be974_0.conda
       - conda: https://conda.anaconda.org/conda-forge/linux-aarch64/openssl-3.3.1-h68df207_2.conda
       - conda: https://conda.anaconda.org/conda-forge/noarch/packaging-24.1-pyhd8ed1ab_0.conda
+      - conda: https://conda.anaconda.org/conda-forge/noarch/pluggy-1.5.0-pyhd8ed1ab_0.conda
+      - conda: https://conda.anaconda.org/conda-forge/noarch/pytest-8.3.2-pyhd8ed1ab_0.conda
       - conda: https://conda.anaconda.org/conda-forge/linux-aarch64/python-3.12.4-h829453d_0_cpython.conda
       - conda: https://conda.anaconda.org/conda-forge/linux-aarch64/python_abi-3.12-4_cp312.conda
       - conda: https://conda.anaconda.org/conda-forge/linux-aarch64/readline-8.2-h8fc344f_1.conda
-      - conda: https://conda.anaconda.org/conda-forge/noarch/setuptools-70.3.0-pyhd8ed1ab_0.conda
+      - conda: https://conda.anaconda.org/conda-forge/noarch/setuptools-71.0.4-pyhd8ed1ab_0.conda
       - conda: https://conda.anaconda.org/conda-forge/linux-aarch64/tk-8.6.13-h194ca79_0.conda
+      - conda: https://conda.anaconda.org/conda-forge/noarch/tomli-2.0.1-pyhd8ed1ab_0.tar.bz2
       - conda: https://conda.anaconda.org/conda-forge/noarch/tzdata-2024a-h0c530f3_0.conda
       - conda: https://conda.anaconda.org/conda-forge/linux-aarch64/xz-5.2.6-h9cdd2b7_0.tar.bz2
       osx-64:
       - conda: https://conda.anaconda.org/conda-forge/osx-64/bzip2-1.0.8-hfdf4475_7.conda
       - conda: https://conda.anaconda.org/conda-forge/osx-64/ca-certificates-2024.7.4-h8857fd0_0.conda
+      - conda: https://conda.anaconda.org/conda-forge/noarch/colorama-0.4.6-pyhd8ed1ab_0.tar.bz2
+      - conda: https://conda.anaconda.org/conda-forge/noarch/exceptiongroup-1.2.2-pyhd8ed1ab_0.conda
       - conda: https://conda.anaconda.org/conda-forge/osx-64/fortls-3.1.2-py312hb401068_0.conda
+      - conda: https://conda.anaconda.org/conda-forge/noarch/iniconfig-2.0.0-pyhd8ed1ab_0.conda
       - conda: https://conda.anaconda.org/conda-forge/noarch/json5-0.9.25-pyhd8ed1ab_0.conda
-      - conda: https://conda.anaconda.org/conda-forge/osx-64/libcxx-18.1.8-hef8daea_0.conda
+      - conda: https://conda.anaconda.org/conda-forge/osx-64/libcxx-18.1.8-hef8daea_2.conda
       - conda: https://conda.anaconda.org/conda-forge/osx-64/libexpat-2.6.2-h73e2aa4_0.conda
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       - conda: https://conda.anaconda.org/conda-forge/osx-64/libzlib-1.3.1-h87427d6_1.conda
-      - conda: https://conda.anaconda.org/conda-forge/noarch/meson-1.5.0-pyhd8ed1ab_0.conda
+      - conda: https://conda.anaconda.org/conda-forge/noarch/meson-1.5.1-pyhd8ed1ab_0.conda
       - conda: https://conda.anaconda.org/conda-forge/osx-64/ncurses-6.5-h5846eda_0.conda
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       - conda: https://conda.anaconda.org/conda-forge/noarch/packaging-24.1-pyhd8ed1ab_0.conda
+      - conda: https://conda.anaconda.org/conda-forge/noarch/pluggy-1.5.0-pyhd8ed1ab_0.conda
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-      - conda: https://conda.anaconda.org/conda-forge/noarch/setuptools-70.3.0-pyhd8ed1ab_0.conda
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       - conda: https://conda.anaconda.org/conda-forge/noarch/tzdata-2024a-h0c530f3_0.conda
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       osx-arm64:
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       - conda: https://conda.anaconda.org/conda-forge/osx-arm64/ca-certificates-2024.7.4-hf0a4a13_0.conda
+      - conda: https://conda.anaconda.org/conda-forge/noarch/colorama-0.4.6-pyhd8ed1ab_0.tar.bz2
+      - conda: https://conda.anaconda.org/conda-forge/noarch/exceptiongroup-1.2.2-pyhd8ed1ab_0.conda
       - conda: https://conda.anaconda.org/conda-forge/osx-arm64/fortls-3.1.2-py312h81bd7bf_0.conda
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-      - conda: https://conda.anaconda.org/conda-forge/osx-arm64/libcxx-18.1.8-h167917d_0.conda
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       win-64:
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       - conda: https://conda.anaconda.org/conda-forge/win-64/ca-certificates-2024.7.4-h56e8100_0.conda
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-      - conda: https://conda.anaconda.org/conda-forge/noarch/meson-1.5.0-pyhd8ed1ab_0.conda
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-      - conda: https://conda.anaconda.org/conda-forge/noarch/setuptools-70.3.0-pyhd8ed1ab_0.conda
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       - conda: https://conda.anaconda.org/conda-forge/win-64/tk-8.6.13-h5226925_1.conda
+      - conda: https://conda.anaconda.org/conda-forge/noarch/tomli-2.0.1-pyhd8ed1ab_0.tar.bz2
       - conda: https://conda.anaconda.org/conda-forge/noarch/tzdata-2024a-h0c530f3_0.conda
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       - conda: https://conda.anaconda.org/conda-forge/win-64/vc-14.3-h8a93ad2_20.conda
@@ -310,6 +340,35 @@ packages:
   license: ISC
   size: 154517
   timestamp: 1720077468981
+- kind: conda
+  name: colorama
+  version: 0.4.6
+  build: pyhd8ed1ab_0
+  subdir: noarch
+  noarch: python
+  url: https://conda.anaconda.org/conda-forge/noarch/colorama-0.4.6-pyhd8ed1ab_0.tar.bz2
+  sha256: 2c1b2e9755ce3102bca8d69e8f26e4f087ece73f50418186aee7c74bef8e1698
+  md5: 3faab06a954c2a04039983f2c4a50d99
+  depends:
+  - python >=3.7
+  license: BSD-3-Clause
+  license_family: BSD
+  size: 25170
+  timestamp: 1666700778190
+- kind: conda
+  name: exceptiongroup
+  version: 1.2.2
+  build: pyhd8ed1ab_0
+  subdir: noarch
+  noarch: python
+  url: https://conda.anaconda.org/conda-forge/noarch/exceptiongroup-1.2.2-pyhd8ed1ab_0.conda
+  sha256: e0edd30c4b7144406bb4da975e6bb97d6bc9c0e999aa4efe66ae108cada5d5b5
+  md5: d02ae936e42063ca46af6cdad2dbd1e0
+  depends:
+  - python >=3.7
+  license: MIT and PSF-2.0
+  size: 20418
+  timestamp: 1720869435725
 - kind: conda
   name: fortls
   version: 3.1.2
@@ -397,6 +456,21 @@ packages:
   license_family: MIT
   size: 338920
   timestamp: 1718867419158
+- kind: conda
+  name: iniconfig
+  version: 2.0.0
+  build: pyhd8ed1ab_0
+  subdir: noarch
+  noarch: python
+  url: https://conda.anaconda.org/conda-forge/noarch/iniconfig-2.0.0-pyhd8ed1ab_0.conda
+  sha256: 38740c939b668b36a50ef455b077e8015b8c9cf89860d421b3fff86048f49666
+  md5: f800d2da156d08e289b14e87e43c1ae5
+  depends:
+  - python >=3.7
+  license: MIT
+  license_family: MIT
+  size: 11101
+  timestamp: 1673103208955
 - kind: conda
   name: json5
   version: 0.9.25
@@ -445,31 +519,33 @@ packages:
 - kind: conda
   name: libcxx
   version: 18.1.8
-  build: h167917d_0
+  build: h167917d_2
+  build_number: 2
   subdir: osx-arm64
-  url: https://conda.anaconda.org/conda-forge/osx-arm64/libcxx-18.1.8-h167917d_0.conda
-  sha256: a598062f2d1522fc3727c16620fbc2bc913c1069342671428a92fcf4eb02ec12
-  md5: c891c2eeabd7d67fbc38e012cc6045d6
+  url: https://conda.anaconda.org/conda-forge/osx-arm64/libcxx-18.1.8-h167917d_2.conda
+  sha256: 001b211de6264f7160f4e781efbff11cd67a326f67b7d6b07e6278fcb0cc2f50
+  md5: 15656a04159b40ab98e02b46b52b7919
   depends:
   - __osx >=11.0
   license: Apache-2.0 WITH LLVM-exception
   license_family: Apache
-  size: 1219441
-  timestamp: 1720589623297
+  size: 1220245
+  timestamp: 1722378613893
 - kind: conda
   name: libcxx
   version: 18.1.8
-  build: hef8daea_0
+  build: hef8daea_2
+  build_number: 2
   subdir: osx-64
-  url: https://conda.anaconda.org/conda-forge/osx-64/libcxx-18.1.8-hef8daea_0.conda
-  sha256: d5e7755fe7175e6632179801f2e71c67eec033f1610a48e14510df679c038aa3
-  md5: 4101cde4241c92aeac310d65e6791579
+  url: https://conda.anaconda.org/conda-forge/osx-64/libcxx-18.1.8-hef8daea_2.conda
+  sha256: d63c2c723014fd7c27bfbc69aff3c09975d00755d1821b1d2304303b08b2e560
+  md5: c21d8b63b5cf5d3290d5a7aa2b028bcc
   depends:
   - __osx >=10.13
   license: Apache-2.0 WITH LLVM-exception
   license_family: Apache
-  size: 1396919
-  timestamp: 1720589431855
+  size: 1221021
+  timestamp: 1722378520414
 - kind: conda
   name: libexpat
   version: 2.6.2
@@ -947,21 +1023,21 @@ packages:
   timestamp: 1716874262512
 - kind: conda
   name: meson
-  version: 1.5.0
+  version: 1.5.1
   build: pyhd8ed1ab_0
   subdir: noarch
   noarch: python
-  url: https://conda.anaconda.org/conda-forge/noarch/meson-1.5.0-pyhd8ed1ab_0.conda
-  sha256: 9ca86c9ecedfcc727a9bb1f66787e26e230f57f0b49e24b673fa34e3a8376f34
-  md5: 9d971c5bf99aed063664d6650e7e7ed8
+  url: https://conda.anaconda.org/conda-forge/noarch/meson-1.5.1-pyhd8ed1ab_0.conda
+  sha256: 564e89887c0cd4be27201eac2e4da39a0f46ae79f01174bdc8ef5662a030a96b
+  md5: a87a68d26db0c5bea5cab1f8d7772112
   depends:
   - ninja >=1.8.2
   - python >=3.7
   - setuptools
   license: Apache-2.0
   license_family: APACHE
-  size: 648522
-  timestamp: 1720651658395
+  size: 648162
+  timestamp: 1722166812654
 - kind: conda
   name: ncurses
   version: '6.5'
@@ -1194,6 +1270,44 @@ packages:
   license_family: APACHE
   size: 50290
   timestamp: 1718189540074
+- kind: conda
+  name: pluggy
+  version: 1.5.0
+  build: pyhd8ed1ab_0
+  subdir: noarch
+  noarch: python
+  url: https://conda.anaconda.org/conda-forge/noarch/pluggy-1.5.0-pyhd8ed1ab_0.conda
+  sha256: 33eaa3359948a260ebccf9cdc2fd862cea5a6029783289e13602d8e634cd9a26
+  md5: d3483c8fc2dc2cc3f5cf43e26d60cabf
+  depends:
+  - python >=3.8
+  license: MIT
+  license_family: MIT
+  size: 23815
+  timestamp: 1713667175451
+- kind: conda
+  name: pytest
+  version: 8.3.2
+  build: pyhd8ed1ab_0
+  subdir: noarch
+  noarch: python
+  url: https://conda.anaconda.org/conda-forge/noarch/pytest-8.3.2-pyhd8ed1ab_0.conda
+  sha256: 72c84a3cd9fe82835a88e975fd2a0dbf2071d1c423ea4f79e7930578c1014873
+  md5: e010a224b90f1f623a917c35addbb924
+  depends:
+  - colorama
+  - exceptiongroup >=1.0.0rc8
+  - iniconfig
+  - packaging
+  - pluggy <2,>=1.5
+  - python >=3.8
+  - tomli >=1
+  constrains:
+  - pytest-faulthandler >=2
+  license: MIT
+  license_family: MIT
+  size: 257671
+  timestamp: 1721923749407
 - kind: conda
   name: python
   version: 3.12.4
@@ -1471,19 +1585,19 @@ packages:
   timestamp: 1679532707590
 - kind: conda
   name: setuptools
-  version: 70.3.0
+  version: 71.0.4
   build: pyhd8ed1ab_0
   subdir: noarch
   noarch: python
-  url: https://conda.anaconda.org/conda-forge/noarch/setuptools-70.3.0-pyhd8ed1ab_0.conda
-  sha256: 869ea7688c040911ac1050d5765fa1f3d8ea1858c9f9cecb0df136a2f5e44f46
-  md5: 693bb57e8f92120caa956898065f3627
+  url: https://conda.anaconda.org/conda-forge/noarch/setuptools-71.0.4-pyhd8ed1ab_0.conda
+  sha256: e1b5dd28d2ea2a7ad660fbc8d1f2ef682a2f8460f80240d836d62e56225ac680
+  md5: ee78ac9c720d0d02fcfd420866b82ab1
   depends:
   - python >=3.8
   license: MIT
   license_family: MIT
-  size: 496453
-  timestamp: 1720782643725
+  size: 1463254
+  timestamp: 1721475299854
 - kind: conda
   name: tk
   version: 8.6.13
@@ -1562,6 +1676,21 @@ packages:
   license_family: BSD
   size: 3318875
   timestamp: 1699202167581
+- kind: conda
+  name: tomli
+  version: 2.0.1
+  build: pyhd8ed1ab_0
+  subdir: noarch
+  noarch: python
+  url: https://conda.anaconda.org/conda-forge/noarch/tomli-2.0.1-pyhd8ed1ab_0.tar.bz2
+  sha256: 4cd48aba7cd026d17e86886af48d0d2ebc67ed36f87f6534f4b67138f5a5a58f
+  md5: 5844808ffab9ebdb694585b50ba02a96
+  depends:
+  - python >=3.7
+  license: MIT
+  license_family: MIT
+  size: 15940
+  timestamp: 1644342331069
 - kind: conda
   name: tzdata
   version: 2024a
diff --git a/pixi.toml b/pixi.toml
index d9de781..056c6a1 100644
--- a/pixi.toml
+++ b/pixi.toml
@@ -5,11 +5,15 @@ platforms = ["win-64", "linux-64", "linux-aarch64", "osx-arm64", "osx-64"]
 version = "0.0.1"
 
 [tasks]
-build-release-gfortran = "meson setup builddir-release-gfortran --buildtype=release -Dfortran_compiler=gfortran && meson compile -C builddir-release-gfortran"
-build-debug-gfortran = "meson setup builddir-debug-gfortran --buildtype=debug -Dfortran_compiler=gfortran && meson compile -C builddir-debug-gfortran"
-build-release-ifort = "meson setup builddir-release-ifort --buildtype=release -Dfortran_compiler=ifort && meson compile -C builddir-release-ifort"
-build-debug-ifort = "meson setup builddir-debug-ifort --buildtype=debug -Dfortran_compiler=ifort && meson compile -C builddir-debug-ifort"
+build-release-gfortran = "meson setup builddir-release-gfortran --buildtype=release -Dfortran_compiler=gfortran && meson compile -C builddir-release-gfortran && meson install -C builddir-release-gfortran"
+build-debug-gfortran = "meson setup builddir-debug-gfortran --buildtype=debug -Dfortran_compiler=gfortran && meson compile -C builddir-debug-gfortran && meson install -C builddir-debug-gfortran"
+build-release-ifort = "meson setup builddir-release-ifort --buildtype=release -Dfortran_compiler=ifort && meson compile -C builddir-release-ifort && meson install -C builddir-release-ifort"
+build-debug-ifort = "meson setup builddir-debug-ifort --buildtype=debug -Dfortran_compiler=ifort && meson compile -C builddir-debug-ifort && meson install -C builddir-debug-ifort"
+
+# Whatever has been most recently built will be moved to the ./bin directory.
+test = "pytest"
 
 [dependencies]
 fortls = "*"
 meson = ">=1.5.0,<1.6"
+pytest = "*"
\ No newline at end of file
diff --git a/test/test_well_uflow.py b/test/test_well_uflow.py
new file mode 100644
index 0000000..c6784a2
--- /dev/null
+++ b/test/test_well_uflow.py
@@ -0,0 +1,59 @@
+import contextlib
+import pathlib
+import os
+import subprocess
+
+import pytest
+
+
+@contextlib.contextmanager
+def cd(path: pathlib.Path):
+    """
+    Change directory, and change it back after the with block.
+
+    Examples
+    --------
+    >>> with imod.util.context.cd("docs"):
+            do_something_in_docs()
+
+    """
+    curdir = os.getcwd()
+    os.chdir(path)
+    try:
+        yield
+    finally:
+        os.chdir(curdir)
+        
+
+class TestRun:
+    @pytest.fixture(autouse=True)
+    def setup(self, tmpdir):
+        self.tmpdir = pathlib.Path(tmpdir)
+
+        # Get the root path and add the bin folder to PATH so we can find the
+        # recently built executable.
+        project_root = pathlib.Path(__file__).parent.parent.resolve()
+        os.environ["PATH"] += os.pathsep + str(project_root / "bin")
+
+        # Copy the file
+        source_file = project_root / 'test/data/well_uflow.dat'
+        target_file = self.tmpdir / 'WELL_UFLOW.DAT'
+        target_file.write_bytes(source_file.read_bytes())
+
+        # Run gflow
+        with cd(self.tmpdir):
+            self.result = subprocess.run(
+                ["gflow2", "WELL_UFLOW.DAT"],
+                timeout=2,  # two seconds
+                check=True,
+                capture_output=True,
+                text=True
+            )
+            
+    def check_exitcode(self):
+        assert self.result.returncode == 0
+ 
+    def test_files(self):
+        assert (self.tmpdir / "WELL_UFLOW.GRD").exists()
+        assert (self.tmpdir / "WELL_UFLOW.XTR").exists()
+ 
\ No newline at end of file