Unit testing

How to ensure high quality components.

We recommend adding unit tests to all of your components in a project as soon as possible. Implementing unit tests not only ensures that your component works, but it also makes the project more maintainable in the long run as you will be notified when a component breaks.

This page describes how to add a unit test to your component.

Create unit test

Below is an example of how to add a unit test to a Viash component.

#!/bin/bash

## VIASH START
meta_executable="target/example_bash"
## VIASH END

echo ">>> Create input test file"
echo "foo" > foo.txt

echo ">>> Run executable"
$meta_executable --input foo.txt --output bar.txt

echo ">>> Check whether output file exists"
[[ -f bar.txt ]] (echo "Output file could not be found!" && exit 1)

echo ">>> Check whether input and output file are the same"
cmp foo.txt bar.tx (echo "Input and output files are different!" && exit 1)

echo ">>> Test finished successfully"
using System;
using System.IO;
using System.Diagnostics;

// VIASH START
var meta = new {
  executable = "target/example_csharp"
};
// VIASH END

string inputPath = "foo.txt";
string outputPath = "bar.txt";
string content = "hello\nthere\n";

Console.WriteLine(">>> Create input test file");
File.WriteAllText(inputPath, content);

Console.WriteLine(">>> Run executable");

var startInfo = new ProcessStartInfo(meta.executable)
{
    Arguments = $"--input {inputPath} --output {outputPath}",
    UseShellExecute = false,
    RedirectStandardOutput = true,
    CreateNoWindow = true
};
using(var cmd = Process.Start(startInfo))
{
    cmd.WaitForExit();
}


Console.WriteLine(">>> Check whether output file exists");
if (!File.Exists(outputPath)) {
    Console.WriteLine("Output file was not found");
    Environment.Exit(1);
}

Console.WriteLine(">>> Check whether input and output file are the same");
var outputLines = File.ReadAllText(outputPath);
if (content != outputLines) {
    Console.WriteLine(
        "Input and output should be the same\n" +
        $"expected content: {content}\n" +
        $"found: {outputLines}\n"
    );
    Environment.Exit(1);
}

Console.WriteLine(">>> Test finished successfully");
const fs = require('fs');
const child_process = require('child_process');

// VIASH START
let meta = {
  'executable': 'target/example_js'
};
// VIASH END

const inputPath = 'foo.txt';
const outputPath = 'bar.txt';
const content = 'hello\nthere\n';

console.log('>>> Create input test file');
fs.writeFileSync(inputPath, content, 'utf8');

console.log('>>> Run executable');
const cmdArgs = [
  '--input', inputPath,
  '--output', outputPath
];
const child = child_process.spawnSync(meta["executable"], cmdArgs);
if (child.error) {
  console.error(`Error: ${child.error}`);
  process.exit(1);
}

console.log('>>> Check whether output file exists');
if (!fs.existsSync(outputPath)) {
  console.error('Output file was not found');
  process.exit(1);
}

console.log('>>> Check whether input and output file are the same');
const outputLines = fs.readFileSync(outputPath, 'utf8');
if (content !== outputLines) {
  console.error(
    `Input and output should be the same\n` +
    `expected content: ${content}\n` +
    `found: ${outputLines}\n`
  );
  process.exit(1);
}

console.log('>>> Test finished successfully');
import subprocess
import os

input_path = "foo.txt"
output_path = "bar.txt"
content = "hello\nthere\n"

## VIASH START
meta = {
  "executable": "target/example_python"
}
## VIASH END

print(">>> Create input test file")
with open(input_path, "w") as file:
  file.write(content)

print(">>> Run executable")
cmd_args = [
  meta["executable"],
  "--input", input_path,
  "--output", output_path
]
subprocess.run(cmd_args, check=True)

print(">>> Check whether output file exists")
assert os.path.exists(output_path), "Output file was not found"

print(">>> Check whether input and output file are the same")
with open(output_path, "r", encoding="utf8") as file:
  output_lines = file.read()

assert content == output_lines, \
  "Input and output should be the same" \
  f"expected content: {content}" \
  f"found: {output_lines}"

print(">>> Test finished successfully")
## VIASH START
meta <- list(
  "target/example_r"
)
## VIASH END

input_path <- "foo.txt"
output_path <- "bar.txt"
content <- c("hello", "there")

cat(">>> Create input test file\n")
writeLines(content, input_path)

cat(">>> Run executable\n")
system2(
  meta$executable,
  c(
    "--input", input_path,
    "--output", output_path
  )
)

cat(">>> Check whether output file exists\n")
if (!file.exists(output_path)) {
  stop("Output file was not found")
}

cat(">>> Check whether input and output file are the same\n")
output_lines <- readLines(output_path)

if (!identical(content, output_lines)) {
  stop(paste0(
    "Input and output should be the same\n",
    "expected content: ", content, "\n",
    "found: ", output_lines, "\n"
  ))
}

cat(">>> Test finished successfully\n")
import scala.sys.process._
import java.nio.file.{Files, Paths}
import scala.io.Source

// VIASH START
case class ViashMeta(executable: String)
val meta = ViashMeta(
  "target/example_scala"
)
// VIASH END
val inputPath = Paths.get("foo.txt")
val outputPath = Paths.get("bar.txt")
val content = "hello\nthere"

println(">>> Create input test file")
Files.write(inputPath, content.getBytes("UTF-8"))

println(">>> Run executable")
s"${meta.executable} --input $inputPath --output $outputPath".!

println(">>> Check whether output file exists")
assert(Files.exists(outputPath), "Output file not found")

println(">>> Check whether input and output file are the same")
val outputLines = Source.fromFile(outputPath.toFile()).getLines.mkString("\n")
assert(
  content == outputLines, 
  s"""Output not the same
expected: '$content'
found: '$outputLines'
""".stripMargin
)

println(">>> Test finished successfully")
  1. Create an input file “foo.txt” with some sample content.
  2. Run an executable file specified in the “meta” dictionary with the arguments “–input foo.txt” and “–output bar.txt”.
  3. Check whether the output file “bar.txt” exists.
  4. Check whether the content of the output file is the same as the content of the input file.
  5. If both checks pass, the script prints “Test finished successfully”.
Important

A test script doesn’t need to be written in the same scripting language as the main script, as long as all of the required dependencies are available. This means the main script could be written in R, but the unit test could be written in Bash.

Add test to config

Next, we need to add the unit test to the test_resources section in the Viash config.

functionality:
  name: example_bash
  description: A minimal example component.
  arguments:
    - type: file
      name: --input
      example: file.txt
      required: true
    - type: file
      name: --output
      direction: output
      example: output.txt
      required: true
  resources:
    - type: bash_script
      path: script.sh
  test_resources:
    - type: bash_script
      path: test.sh
platforms:
  - type: docker
    image: bash:4.0
  - type: native
  - type: nextflow
functionality:
  name: example_csharp
  description: A minimal example component.
  arguments:
    - type: file
      name: --input
      example: file.txt
      required: true
    - type: file
      name: --output
      direction: output
      example: output.txt
      required: true
  resources:
    - type: csharp_script
      path: script.csx
  test_resources:
    - type: csharp_script
      path: test.csx
platforms:
  - type: docker
    image: ghcr.io/data-intuitive/dotnet-script:1.3.1
  - type: native
  - type: nextflow
functionality:
  name: example_js
  description: A minimal example component.
  arguments:
    - type: file
      name: --input
      example: file.txt
      required: true
    - type: file
      name: --output
      direction: output
      example: output.txt
      required: true
  resources:
    - type: javascript_script
      path: script.js
  test_resources:
    - type: javascript_script
      path: test.js
platforms:
  - type: docker
    image: node:19-bullseye-slim
  - type: native
  - type: nextflow
functionality:
  name: example_python
  description: A minimal example component.
  arguments:
    - type: file
      name: --input
      example: file.txt
      required: true
    - type: file
      name: --output
      direction: output
      example: output.txt
      required: true
  resources:
    - type: python_script
      path: script.py
  test_resources:
    - type: python_script
      path: test.py
platforms:
  - type: docker
    image: python:3.10-slim
  - type: native
  - type: nextflow
functionality:
  name: example_r
  description: A minimal example component.
  arguments:
    - type: file
      name: --input
      example: file.txt
      required: true
    - type: file
      name: --output
      direction: output
      example: output.txt
      required: true
  resources:
    - type: r_script
      path: script.R
  test_resources:
    - type: r_script
      path: test.R
platforms:
  - type: docker
    image: eddelbuettel/r2u:22.04
  - type: native
  - type: nextflow
functionality:
  name: example_scala
  description: A minimal example component.
  arguments:
    - type: file
      name: --input
      example: file.txt
      required: true
    - type: file
      name: --output
      direction: output
      example: output.txt
      required: true
  resources:
    - type: scala_script
      path: script.scala
  test_resources:
    - type: scala_script
      path: test.scala
platforms:
  - type: docker
    image: sbtscala/scala-sbt:eclipse-temurin-19_36_1.7.2_2.13.10
  - type: native
  - type: nextflow

Note that if you can add multiple unit tests to the test_resources section, they will all be evaluated. You can also add other resources, similar to what is described in the page on adding resources.

Run the unit test

You can run the unit test as follows:

viash test config.vsh.yaml
Running tests in temporary directory: '/tmp/viash_test_example_bash18387137648196234952'
====================================================================
+/tmp/viash_test_example_bash18387137648196234952/build_executable/example_bash ---verbosity 6 ---setup cachedbuild
[notice] Building container 'example_bash:test' with Dockerfile
[info] Running 'docker build -t example_bash:test /tmp/viash_test_example_bash18387137648196234952/build_executable -f /tmp/viash_test_example_bash18387137648196234952/build_executable/tmp/dockerbuild-example_bash-JApExL/Dockerfile'
#0 building with "default" instance using docker driver

#1 [internal] load build definition from Dockerfile
#1 transferring dockerfile: 286B done
#1 DONE 0.0s

#2 [internal] load .dockerignore
#2 transferring context: 2B done
#2 DONE 0.0s

#3 [internal] load metadata for docker.io/library/bash:4.0
#3 DONE 0.7s

#4 [1/2] FROM docker.io/library/bash:4.0@sha256:8531615c5261183fa8686a7dc9cbb5ce27a5b480ba9386fb6f66098268ce462c
#4 resolve docker.io/library/bash:4.0@sha256:8531615c5261183fa8686a7dc9cbb5ce27a5b480ba9386fb6f66098268ce462c done
#4 sha256:8531615c5261183fa8686a7dc9cbb5ce27a5b480ba9386fb6f66098268ce462c 6.94kB / 6.94kB done
#4 sha256:8cfaa6fde1a47a95b4f5445e250ee60191b98343d523fa354ba4d7a66630e825 1.28kB / 1.28kB done
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#4 DONE 0.3s

#5 [2/2] RUN :
#5 DONE 0.2s

#6 exporting to image
#6 exporting layers
#6 exporting layers 0.3s done
#6 writing image sha256:d706e980aad5a98dc8d9d32ab3b3bfbfb1327ebf73f58e053d338fc8c48db5de done
#6 naming to docker.io/library/example_bash:test done
#6 DONE 0.3s
====================================================================
+/tmp/viash_test_example_bash18387137648196234952/test_test/test_executable
>>> Create input test file
>>> Run executable
Copying 'foo.txt' to 'bar.txt'.
>>> Check whether output file exists
>>> Check whether input and output file are the same
>>> Test finished successfully
====================================================================
SUCCESS! All 1 out of 1 test scripts succeeded!
Cleaning up temporary directory
viash test config.vsh.yaml
Running tests in temporary directory: '/tmp/viash_test_example_csharp3042431776232466663'
====================================================================
+/tmp/viash_test_example_csharp3042431776232466663/build_executable/example_csharp ---verbosity 6 ---setup cachedbuild
[notice] Building container 'example_csharp:test' with Dockerfile
[info] Running 'docker build -t example_csharp:test /tmp/viash_test_example_csharp3042431776232466663/build_executable -f /tmp/viash_test_example_csharp3042431776232466663/build_executable/tmp/dockerbuild-example_csharp-y97BHx/Dockerfile'
#0 building with "default" instance using docker driver

#1 [internal] load .dockerignore
#1 transferring context: 2B done
#1 DONE 0.0s

#2 [internal] load build definition from Dockerfile
#2 transferring dockerfile: 322B done
#2 DONE 0.0s

#3 [internal] load metadata for ghcr.io/data-intuitive/dotnet-script:1.3.1
#3 DONE 0.8s

#4 [1/2] FROM ghcr.io/data-intuitive/dotnet-script:1.3.1@sha256:d95bf2a2b3e095e5b02960ab4ddd4674d798a1493ed0dc5cf427c77a5ed90ed3
#4 resolve ghcr.io/data-intuitive/dotnet-script:1.3.1@sha256:d95bf2a2b3e095e5b02960ab4ddd4674d798a1493ed0dc5cf427c77a5ed90ed3 done
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#4 extracting sha256:16def9f17d8d9988a074a1d3ae42cb041b261068b3a455c99141bb8df243e9a4
#4 extracting sha256:16def9f17d8d9988a074a1d3ae42cb041b261068b3a455c99141bb8df243e9a4 0.0s done
#4 extracting sha256:03ac08f8f1d3c646d8f456ad0e2307b56511e692bcef7a4d67ec194ba81f59e7 done
#4 DONE 5.9s

#5 [2/2] RUN :
#5 DONE 0.2s

#6 exporting to image
#6 exporting layers
#6 exporting layers 0.9s done
#6 writing image sha256:ea5948f86b79937a26fff04599008933839f2efd12b54ba7fab4d9605a004bb4 done
#6 naming to docker.io/library/example_csharp:test done
#6 DONE 0.9s
====================================================================
+/tmp/viash_test_example_csharp3042431776232466663/test_test/test_executable
>>> Create input test file
>>> Run executable
>>> Check whether output file exists
>>> Check whether input and output file are the same
>>> Test finished successfully
====================================================================
SUCCESS! All 1 out of 1 test scripts succeeded!
Cleaning up temporary directory
viash test config.vsh.yaml
Running tests in temporary directory: '/tmp/viash_test_example_js13991087664485891502'
====================================================================
+/tmp/viash_test_example_js13991087664485891502/build_executable/example_js ---verbosity 6 ---setup cachedbuild
[notice] Building container 'example_js:test' with Dockerfile
[info] Running 'docker build -t example_js:test /tmp/viash_test_example_js13991087664485891502/build_executable -f /tmp/viash_test_example_js13991087664485891502/build_executable/tmp/dockerbuild-example_js-HoTkCy/Dockerfile'
#0 building with "default" instance using docker driver

#1 [internal] load .dockerignore
#1 transferring context: 2B done
#1 DONE 0.0s

#2 [internal] load build definition from Dockerfile
#2 transferring dockerfile: 297B done
#2 DONE 0.0s

#3 [internal] load metadata for docker.io/library/node:19-bullseye-slim
#3 DONE 0.9s

#4 [1/2] FROM docker.io/library/node:19-bullseye-slim@sha256:f58f1fcf5c9ff9e3752993edb4ed6dbd35697124c85a43f3b97aa054500b0534
#4 resolve docker.io/library/node:19-bullseye-slim@sha256:f58f1fcf5c9ff9e3752993edb4ed6dbd35697124c85a43f3b97aa054500b0534 done
#4 sha256:f58f1fcf5c9ff9e3752993edb4ed6dbd35697124c85a43f3b97aa054500b0534 1.21kB / 1.21kB done
#4 sha256:63b5ca0f90dbaf64465a83d46276e133eab30410f642808d158bf98928811999 1.37kB / 1.37kB done
#4 sha256:adbc02574b521bb652d771c8ac0282c724b9fe90c001f3bab0825c32092c9036 6.84kB / 6.84kB done
#4 sha256:f03b40093957615593f2ed142961afb6b540507e0b47e3f7626ba5e02efbbbf1 0B / 31.40MB 0.1s
#4 sha256:0bfad7312c25e414fc3d0e3640a77bd4b5c74d2118595670999afef9758cb49b 0B / 4.19kB 0.1s
#4 sha256:56db04c463e993ac037103947cd590d52fcddcb17ad04285a0ca4c3510c0738c 0B / 46.62MB 0.1s
#4 sha256:f03b40093957615593f2ed142961afb6b540507e0b47e3f7626ba5e02efbbbf1 24.12MB / 31.40MB 0.3s
#4 sha256:0bfad7312c25e414fc3d0e3640a77bd4b5c74d2118595670999afef9758cb49b 4.19kB / 4.19kB 0.2s done
#4 sha256:56db04c463e993ac037103947cd590d52fcddcb17ad04285a0ca4c3510c0738c 10.60MB / 46.62MB 0.3s
#4 sha256:477c7ebfb8500396b86c69952acb17b909a0a63da41e03dd4046e2c809722c6e 2.16MB / 2.76MB 0.3s
#4 sha256:f03b40093957615593f2ed142961afb6b540507e0b47e3f7626ba5e02efbbbf1 31.40MB / 31.40MB 0.4s
#4 sha256:56db04c463e993ac037103947cd590d52fcddcb17ad04285a0ca4c3510c0738c 26.21MB / 46.62MB 0.4s
#4 sha256:477c7ebfb8500396b86c69952acb17b909a0a63da41e03dd4046e2c809722c6e 2.76MB / 2.76MB 0.3s done
#4 sha256:8bb4aa3e51be63d4a2e5bd30ab9cd478a916ed3c5c0212a44b96fd743e0e0f2f 0B / 450B 0.4s
#4 extracting sha256:f03b40093957615593f2ed142961afb6b540507e0b47e3f7626ba5e02efbbbf1
#4 sha256:f03b40093957615593f2ed142961afb6b540507e0b47e3f7626ba5e02efbbbf1 31.40MB / 31.40MB 0.4s done
#4 sha256:56db04c463e993ac037103947cd590d52fcddcb17ad04285a0ca4c3510c0738c 39.85MB / 46.62MB 0.5s
#4 sha256:8bb4aa3e51be63d4a2e5bd30ab9cd478a916ed3c5c0212a44b96fd743e0e0f2f 450B / 450B 0.4s done
#4 sha256:56db04c463e993ac037103947cd590d52fcddcb17ad04285a0ca4c3510c0738c 46.62MB / 46.62MB 0.6s done
#4 extracting sha256:f03b40093957615593f2ed142961afb6b540507e0b47e3f7626ba5e02efbbbf1 1.2s done
#4 extracting sha256:0bfad7312c25e414fc3d0e3640a77bd4b5c74d2118595670999afef9758cb49b done
#4 extracting sha256:56db04c463e993ac037103947cd590d52fcddcb17ad04285a0ca4c3510c0738c 0.1s
#4 extracting sha256:56db04c463e993ac037103947cd590d52fcddcb17ad04285a0ca4c3510c0738c 1.9s done
#4 extracting sha256:477c7ebfb8500396b86c69952acb17b909a0a63da41e03dd4046e2c809722c6e
#4 extracting sha256:477c7ebfb8500396b86c69952acb17b909a0a63da41e03dd4046e2c809722c6e 0.1s done
#4 extracting sha256:8bb4aa3e51be63d4a2e5bd30ab9cd478a916ed3c5c0212a44b96fd743e0e0f2f done
#4 DONE 3.9s

#5 [2/2] RUN :
#5 DONE 0.2s

#6 exporting to image
#6 exporting layers
#6 exporting layers 0.8s done
#6 writing image sha256:9a6ee20d95ba3849af1677368347c7a315dc6aaf36cf425fb6a3464e6c034b31 done
#6 naming to docker.io/library/example_js:test done
#6 DONE 0.8s
====================================================================
+/tmp/viash_test_example_js13991087664485891502/test_test/test_executable
>>> Create input test file
>>> Run executable
>>> Check whether output file exists
>>> Check whether input and output file are the same
>>> Test finished successfully
====================================================================
SUCCESS! All 1 out of 1 test scripts succeeded!
Cleaning up temporary directory
viash test config.vsh.yaml
Running tests in temporary directory: '/tmp/viash_test_example_python16962187023366052480'
====================================================================
+/tmp/viash_test_example_python16962187023366052480/build_executable/example_python ---verbosity 6 ---setup cachedbuild
[notice] Building container 'example_python:test' with Dockerfile
[info] Running 'docker build -t example_python:test /tmp/viash_test_example_python16962187023366052480/build_executable -f /tmp/viash_test_example_python16962187023366052480/build_executable/tmp/dockerbuild-example_python-VAPoEH/Dockerfile'
#0 building with "default" instance using docker driver

#1 [internal] load .dockerignore
#1 transferring context: 2B done
#1 DONE 0.0s

#2 [internal] load build definition from Dockerfile
#2 transferring dockerfile: 296B done
#2 DONE 0.0s

#3 [internal] load metadata for docker.io/library/python:3.10-slim
#3 DONE 0.7s

#4 [1/2] FROM docker.io/library/python:3.10-slim@sha256:1326d0fd281d283b077fd249e618339a44c9ca5aae6e05cb4f069a087e827922
#4 resolve docker.io/library/python:3.10-slim@sha256:1326d0fd281d283b077fd249e618339a44c9ca5aae6e05cb4f069a087e827922 done
#4 sha256:8a1e25ce7c4f75e372e9884f8f7b1bedcfe4a7a7d452eb4b0a1c7477c9a90345 0B / 29.12MB 0.1s
#4 sha256:1103112ebfc46e01c0f35f3586e5a39c6a9ffa32c1a362d4d5f20e3783c6fdd7 0B / 3.51MB 0.1s
#4 sha256:fb784af4aedaf9b1c591e0469ed0d893412349d29b10ccf767103722d73d9c52 0B / 12.38MB 0.1s
#4 sha256:1326d0fd281d283b077fd249e618339a44c9ca5aae6e05cb4f069a087e827922 1.65kB / 1.65kB done
#4 sha256:8c4c32279ee7a58fb58b12c684bc0319e8382412d6d4a8680dc2122ee12cd45d 1.37kB / 1.37kB done
#4 sha256:2e941c6bbd3f21e92677f0f036a952d667f923b8b69d474c12debb02f7358037 6.94kB / 6.94kB done
#4 sha256:8a1e25ce7c4f75e372e9884f8f7b1bedcfe4a7a7d452eb4b0a1c7477c9a90345 4.19MB / 29.12MB 0.2s
#4 sha256:8a1e25ce7c4f75e372e9884f8f7b1bedcfe4a7a7d452eb4b0a1c7477c9a90345 29.12MB / 29.12MB 0.4s done
#4 sha256:1103112ebfc46e01c0f35f3586e5a39c6a9ffa32c1a362d4d5f20e3783c6fdd7 3.51MB / 3.51MB 0.3s done
#4 sha256:fb784af4aedaf9b1c591e0469ed0d893412349d29b10ccf767103722d73d9c52 12.38MB / 12.38MB 0.3s done
#4 sha256:043e7f3dd05ab4bea31533694054d95fdc672fa089066248f176a60cb051493c 245B / 245B 0.4s done
#4 sha256:538a89c93346547bc2d83fb25dcd5e8bf44487152f1b0fcda0e15a9dabf56246 0B / 3.36MB 0.4s
#4 sha256:538a89c93346547bc2d83fb25dcd5e8bf44487152f1b0fcda0e15a9dabf56246 3.36MB / 3.36MB 0.5s done
#4 extracting sha256:8a1e25ce7c4f75e372e9884f8f7b1bedcfe4a7a7d452eb4b0a1c7477c9a90345 0.1s
#4 extracting sha256:8a1e25ce7c4f75e372e9884f8f7b1bedcfe4a7a7d452eb4b0a1c7477c9a90345 1.1s done
#4 extracting sha256:1103112ebfc46e01c0f35f3586e5a39c6a9ffa32c1a362d4d5f20e3783c6fdd7 0.1s
#4 extracting sha256:1103112ebfc46e01c0f35f3586e5a39c6a9ffa32c1a362d4d5f20e3783c6fdd7 0.1s done
#4 extracting sha256:fb784af4aedaf9b1c591e0469ed0d893412349d29b10ccf767103722d73d9c52
#4 extracting sha256:fb784af4aedaf9b1c591e0469ed0d893412349d29b10ccf767103722d73d9c52 0.4s done
#4 extracting sha256:043e7f3dd05ab4bea31533694054d95fdc672fa089066248f176a60cb051493c done
#4 extracting sha256:538a89c93346547bc2d83fb25dcd5e8bf44487152f1b0fcda0e15a9dabf56246 0.1s
#4 extracting sha256:538a89c93346547bc2d83fb25dcd5e8bf44487152f1b0fcda0e15a9dabf56246 0.2s done
#4 DONE 2.5s

#5 [2/2] RUN :
#5 DONE 0.2s

#6 exporting to image
#6 exporting layers
#6 exporting layers 0.3s done
#6 writing image sha256:4de54ca7f3f8f64d2142b4ec77bc89e92c14856bd63d4a444535db40b84835b4 done
#6 naming to docker.io/library/example_python:test done
#6 DONE 0.3s
====================================================================
+/tmp/viash_test_example_python16962187023366052480/test_test/test_executable
Copying 'foo.txt' to 'bar.txt'.
>>> Create input test file
>>> Run executable
>>> Check whether output file exists
>>> Check whether input and output file are the same
>>> Test finished successfully
====================================================================
SUCCESS! All 1 out of 1 test scripts succeeded!
Cleaning up temporary directory
viash test config.vsh.yaml
Running tests in temporary directory: '/tmp/viash_test_example_r13335520532591545921'
====================================================================
+/tmp/viash_test_example_r13335520532591545921/build_executable/example_r ---verbosity 6 ---setup cachedbuild
[notice] Building container 'example_r:test' with Dockerfile
[info] Running 'docker build -t example_r:test /tmp/viash_test_example_r13335520532591545921/build_executable -f /tmp/viash_test_example_r13335520532591545921/build_executable/tmp/dockerbuild-example_r-1a6pgo/Dockerfile'
#0 building with "default" instance using docker driver

#1 [internal] load .dockerignore
#1 transferring context: 2B done
#1 DONE 0.0s

#2 [internal] load build definition from Dockerfile
#2 transferring dockerfile: 297B done
#2 DONE 0.0s

#3 [internal] load metadata for docker.io/eddelbuettel/r2u:22.04
#3 DONE 0.5s

#4 [1/2] FROM docker.io/eddelbuettel/r2u:22.04@sha256:f5effb2422dd3e5f9c2150d6b537bf16bb2e9a8ea4d43bca7bc1c0774df45b50
#4 resolve docker.io/eddelbuettel/r2u:22.04@sha256:f5effb2422dd3e5f9c2150d6b537bf16bb2e9a8ea4d43bca7bc1c0774df45b50 done
#4 sha256:f5effb2422dd3e5f9c2150d6b537bf16bb2e9a8ea4d43bca7bc1c0774df45b50 954B / 954B done
#4 sha256:267e650ba6ee09f3f782cd90343db54dd49f35bd437ec572f2aa017370885875 5.59kB / 5.59kB done
#4 sha256:e96e057aae67380a4ddb16c337c5c3669d97fdff69ec537f02aa2cc30d814281 0B / 30.43MB 0.1s
#4 sha256:21c8651f10cbbeed4317a4d9d1642519b844454c5975aeb14b9def2603522c5a 0B / 41.65MB 0.1s
#4 sha256:6935568b0640b2f610cb5dd49dcfac74bd9705a953b669a124a49c90223840c9 0B / 239.85MB 0.1s
#4 sha256:e96e057aae67380a4ddb16c337c5c3669d97fdff69ec537f02aa2cc30d814281 19.27MB / 30.43MB 0.3s
#4 sha256:e96e057aae67380a4ddb16c337c5c3669d97fdff69ec537f02aa2cc30d814281 30.43MB / 30.43MB 0.4s
#4 sha256:21c8651f10cbbeed4317a4d9d1642519b844454c5975aeb14b9def2603522c5a 7.34MB / 41.65MB 0.4s
#4 sha256:e96e057aae67380a4ddb16c337c5c3669d97fdff69ec537f02aa2cc30d814281 30.43MB / 30.43MB 0.4s done
#4 sha256:21c8651f10cbbeed4317a4d9d1642519b844454c5975aeb14b9def2603522c5a 15.73MB / 41.65MB 0.5s
#4 sha256:6935568b0640b2f610cb5dd49dcfac74bd9705a953b669a124a49c90223840c9 14.68MB / 239.85MB 0.5s
#4 extracting sha256:e96e057aae67380a4ddb16c337c5c3669d97fdff69ec537f02aa2cc30d814281 0.1s
#4 sha256:21c8651f10cbbeed4317a4d9d1642519b844454c5975aeb14b9def2603522c5a 18.87MB / 41.65MB 0.6s
#4 sha256:6935568b0640b2f610cb5dd49dcfac74bd9705a953b669a124a49c90223840c9 28.31MB / 239.85MB 0.6s
#4 sha256:21c8651f10cbbeed4317a4d9d1642519b844454c5975aeb14b9def2603522c5a 24.12MB / 41.65MB 0.7s
#4 sha256:6935568b0640b2f610cb5dd49dcfac74bd9705a953b669a124a49c90223840c9 42.99MB / 239.85MB 0.7s
#4 sha256:21c8651f10cbbeed4317a4d9d1642519b844454c5975aeb14b9def2603522c5a 41.65MB / 41.65MB 0.9s done
#4 sha256:6935568b0640b2f610cb5dd49dcfac74bd9705a953b669a124a49c90223840c9 61.87MB / 239.85MB 0.9s
#4 sha256:6935568b0640b2f610cb5dd49dcfac74bd9705a953b669a124a49c90223840c9 79.45MB / 239.85MB 1.1s
#4 sha256:6935568b0640b2f610cb5dd49dcfac74bd9705a953b669a124a49c90223840c9 93.76MB / 239.85MB 1.2s
#4 sha256:6935568b0640b2f610cb5dd49dcfac74bd9705a953b669a124a49c90223840c9 108.18MB / 239.85MB 1.3s
#4 sha256:6935568b0640b2f610cb5dd49dcfac74bd9705a953b669a124a49c90223840c9 122.64MB / 239.85MB 1.4s
#4 extracting sha256:e96e057aae67380a4ddb16c337c5c3669d97fdff69ec537f02aa2cc30d814281 1.1s done
#4 sha256:6935568b0640b2f610cb5dd49dcfac74bd9705a953b669a124a49c90223840c9 144.70MB / 239.85MB 1.7s
#4 extracting sha256:21c8651f10cbbeed4317a4d9d1642519b844454c5975aeb14b9def2603522c5a
#4 sha256:6935568b0640b2f610cb5dd49dcfac74bd9705a953b669a124a49c90223840c9 159.38MB / 239.85MB 1.9s
#4 sha256:6935568b0640b2f610cb5dd49dcfac74bd9705a953b669a124a49c90223840c9 174.06MB / 239.85MB 2.0s
#4 sha256:6935568b0640b2f610cb5dd49dcfac74bd9705a953b669a124a49c90223840c9 187.70MB / 239.85MB 2.1s
#4 sha256:6935568b0640b2f610cb5dd49dcfac74bd9705a953b669a124a49c90223840c9 204.47MB / 239.85MB 2.3s
#4 sha256:6935568b0640b2f610cb5dd49dcfac74bd9705a953b669a124a49c90223840c9 222.30MB / 239.85MB 2.5s
#4 extracting sha256:21c8651f10cbbeed4317a4d9d1642519b844454c5975aeb14b9def2603522c5a 0.7s done
#4 sha256:6935568b0640b2f610cb5dd49dcfac74bd9705a953b669a124a49c90223840c9 239.85MB / 239.85MB 2.8s
#4 sha256:6935568b0640b2f610cb5dd49dcfac74bd9705a953b669a124a49c90223840c9 239.85MB / 239.85MB 2.9s done
#4 extracting sha256:6935568b0640b2f610cb5dd49dcfac74bd9705a953b669a124a49c90223840c9
#4 extracting sha256:6935568b0640b2f610cb5dd49dcfac74bd9705a953b669a124a49c90223840c9 5.1s
#4 extracting sha256:6935568b0640b2f610cb5dd49dcfac74bd9705a953b669a124a49c90223840c9 6.1s done
#4 DONE 10.5s

#5 [2/2] RUN :
#5 DONE 0.2s

#6 exporting to image
#6 exporting layers
#6 exporting layers 0.7s done
#6 writing image sha256:d99e38432ee2e614eb75f018f3be5c1ea08b310e9e38d8049e968118dfcaea9c done
#6 naming to docker.io/library/example_r:test done
#6 DONE 0.7s
====================================================================
+/tmp/viash_test_example_r13335520532591545921/test_test/test_executable
>>> Create input test file
>>> Run executable
Copying 'foo.txt' to 'bar.txt'.
[1] TRUE
>>> Check whether output file exists
>>> Check whether input and output file are the same
>>> Test finished successfully
====================================================================
SUCCESS! All 1 out of 1 test scripts succeeded!
Cleaning up temporary directory
viash test config.vsh.yaml
Running tests in temporary directory: '/tmp/viash_test_example_scala9293231472653507033'
====================================================================
+/tmp/viash_test_example_scala9293231472653507033/build_executable/example_scala ---verbosity 6 ---setup cachedbuild
[notice] Building container 'example_scala:test' with Dockerfile
[info] Running 'docker build -t example_scala:test /tmp/viash_test_example_scala9293231472653507033/build_executable -f /tmp/viash_test_example_scala9293231472653507033/build_executable/tmp/dockerbuild-example_scala-UX0sfE/Dockerfile'
#0 building with "default" instance using docker driver

#1 [internal] load .dockerignore
#1 transferring context: 2B done
#1 DONE 0.0s

#2 [internal] load build definition from Dockerfile
#2 transferring dockerfile: 333B done
#2 DONE 0.0s

#3 [internal] load metadata for docker.io/sbtscala/scala-sbt:eclipse-temurin-19_36_1.7.2_2.13.10
#3 DONE 0.7s

#4 [1/2] FROM docker.io/sbtscala/scala-sbt:eclipse-temurin-19_36_1.7.2_2.13.10@sha256:440234e283754375d5ab6bcb35e2d470f9dabeaaeb639d8c0708fac2d3707e0c
#4 resolve docker.io/sbtscala/scala-sbt:eclipse-temurin-19_36_1.7.2_2.13.10@sha256:440234e283754375d5ab6bcb35e2d470f9dabeaaeb639d8c0708fac2d3707e0c done
#4 sha256:76808e2ea8df2d9cac1d275426e51a2190369f706076c55ac2da3823bef0a019 10.89kB / 10.89kB done
#4 sha256:5fb9fa7513e6a72bf7daf0a75e97c441f1ed7ff69c8609d1c429fdf3a6dc846b 0B / 200.85MB 0.1s
#4 sha256:c5c735a83dbd58e1c83f8d52abdc51068e27c00405f53d59802d4954a6b5398a 0B / 16.99MB 0.1s
#4 sha256:440234e283754375d5ab6bcb35e2d470f9dabeaaeb639d8c0708fac2d3707e0c 743B / 743B done
#4 sha256:301a8b74f71f85f3a31e9c7e7fedd5b001ead5bcf895bc2911c1d260e06bd987 0B / 30.43MB 0.1s
#4 sha256:06478611ba16efc6663ccf5f22a29c990c53aed6848bc58c54c67dc32d8aef13 3.04kB / 3.04kB done
#4 sha256:5fb9fa7513e6a72bf7daf0a75e97c441f1ed7ff69c8609d1c429fdf3a6dc846b 14.68MB / 200.85MB 0.2s
#4 sha256:c5c735a83dbd58e1c83f8d52abdc51068e27c00405f53d59802d4954a6b5398a 2.10MB / 16.99MB 0.2s
#4 sha256:5fb9fa7513e6a72bf7daf0a75e97c441f1ed7ff69c8609d1c429fdf3a6dc846b 30.41MB / 200.85MB 0.4s
#4 sha256:301a8b74f71f85f3a31e9c7e7fedd5b001ead5bcf895bc2911c1d260e06bd987 22.02MB / 30.43MB 0.4s
#4 sha256:c5c735a83dbd58e1c83f8d52abdc51068e27c00405f53d59802d4954a6b5398a 10.49MB / 16.99MB 0.5s
#4 sha256:301a8b74f71f85f3a31e9c7e7fedd5b001ead5bcf895bc2911c1d260e06bd987 30.43MB / 30.43MB 0.5s
#4 extracting sha256:301a8b74f71f85f3a31e9c7e7fedd5b001ead5bcf895bc2911c1d260e06bd987
#4 sha256:5fb9fa7513e6a72bf7daf0a75e97c441f1ed7ff69c8609d1c429fdf3a6dc846b 51.38MB / 200.85MB 0.6s
#4 sha256:c5c735a83dbd58e1c83f8d52abdc51068e27c00405f53d59802d4954a6b5398a 16.99MB / 16.99MB 0.6s done
#4 sha256:301a8b74f71f85f3a31e9c7e7fedd5b001ead5bcf895bc2911c1d260e06bd987 30.43MB / 30.43MB 0.5s done
#4 sha256:14d68137d870fdc4bc849fbe5c5571ca3e6d9a7b2c5bf1c7e928ccf716dd3b4a 0B / 29.75MB 0.6s
#4 sha256:2af8e2a543d81b57575a2e457bd1e98ffc061b15639dac3be5ff6c2702b9ea1a 0B / 175B 0.6s
#4 sha256:5fb9fa7513e6a72bf7daf0a75e97c441f1ed7ff69c8609d1c429fdf3a6dc846b 66.06MB / 200.85MB 0.7s
#4 sha256:2af8e2a543d81b57575a2e457bd1e98ffc061b15639dac3be5ff6c2702b9ea1a 175B / 175B 0.6s done
#4 sha256:320659737461e071e3d809231861a7487daaa79805c57f97015ff020f34a939a 0B / 23.71MB 0.7s
#4 sha256:5fb9fa7513e6a72bf7daf0a75e97c441f1ed7ff69c8609d1c429fdf3a6dc846b 78.64MB / 200.85MB 0.8s
#4 sha256:14d68137d870fdc4bc849fbe5c5571ca3e6d9a7b2c5bf1c7e928ccf716dd3b4a 15.15MB / 29.75MB 0.8s
#4 sha256:320659737461e071e3d809231861a7487daaa79805c57f97015ff020f34a939a 8.39MB / 23.71MB 0.8s
#4 sha256:5fb9fa7513e6a72bf7daf0a75e97c441f1ed7ff69c8609d1c429fdf3a6dc846b 91.23MB / 200.85MB 0.9s
#4 sha256:14d68137d870fdc4bc849fbe5c5571ca3e6d9a7b2c5bf1c7e928ccf716dd3b4a 28.31MB / 29.75MB 0.9s
#4 sha256:320659737461e071e3d809231861a7487daaa79805c57f97015ff020f34a939a 20.97MB / 23.71MB 0.9s
#4 sha256:14d68137d870fdc4bc849fbe5c5571ca3e6d9a7b2c5bf1c7e928ccf716dd3b4a 29.75MB / 29.75MB 1.0s done
#4 sha256:1dea7716181a505cea41832dc84691b858a8f64471cb352d8c29cec06e428aeb 0B / 40.48MB 1.0s
#4 sha256:320659737461e071e3d809231861a7487daaa79805c57f97015ff020f34a939a 23.71MB / 23.71MB 1.0s done
#4 sha256:1dea7716181a505cea41832dc84691b858a8f64471cb352d8c29cec06e428aeb 5.24MB / 40.48MB 1.1s
#4 sha256:c9480a4b593fb5abc117a5e01c80d8495c9fd89e743757730c712545f425c9f3 0B / 183B 1.1s
#4 sha256:5fb9fa7513e6a72bf7daf0a75e97c441f1ed7ff69c8609d1c429fdf3a6dc846b 122.66MB / 200.85MB 1.3s
#4 sha256:1dea7716181a505cea41832dc84691b858a8f64471cb352d8c29cec06e428aeb 31.46MB / 40.48MB 1.3s
#4 sha256:c9480a4b593fb5abc117a5e01c80d8495c9fd89e743757730c712545f425c9f3 183B / 183B 1.1s done
#4 sha256:812216efaf878f5ff8086b6efdccec1cb090228107efd62db47d048c927c4f6a 4.33kB / 4.33kB 1.3s done
#4 sha256:4f4fb700ef54461cfa02571ae0db9a0dc1e0cdb5577484a6d75e68dc38e8acc1 0B / 32B 1.3s
#4 sha256:5fb9fa7513e6a72bf7daf0a75e97c441f1ed7ff69c8609d1c429fdf3a6dc846b 134.22MB / 200.85MB 1.4s
#4 sha256:1dea7716181a505cea41832dc84691b858a8f64471cb352d8c29cec06e428aeb 40.48MB / 40.48MB 1.4s done
#4 sha256:4f4fb700ef54461cfa02571ae0db9a0dc1e0cdb5577484a6d75e68dc38e8acc1 32B / 32B 1.4s done
#4 sha256:2c0021742fe2b9491f62c3d89da10492c175081bd17d77efd0f22a298c37ad64 0B / 222B 1.4s
#4 sha256:bb7a0c6ab9c129a399a3c8f034cd0de30406766d61a6694f150b4ab9e64c560c 0B / 214.15MB 1.4s
#4 sha256:5fb9fa7513e6a72bf7daf0a75e97c441f1ed7ff69c8609d1c429fdf3a6dc846b 149.95MB / 200.85MB 1.5s
#4 sha256:5fb9fa7513e6a72bf7daf0a75e97c441f1ed7ff69c8609d1c429fdf3a6dc846b 177.21MB / 200.85MB 1.7s
#4 sha256:2c0021742fe2b9491f62c3d89da10492c175081bd17d77efd0f22a298c37ad64 222B / 222B 1.5s done
#4 sha256:bb7a0c6ab9c129a399a3c8f034cd0de30406766d61a6694f150b4ab9e64c560c 26.21MB / 214.15MB 1.7s
#4 sha256:bb7a0c6ab9c129a399a3c8f034cd0de30406766d61a6694f150b4ab9e64c560c 40.98MB / 214.15MB 1.8s
#4 extracting sha256:301a8b74f71f85f3a31e9c7e7fedd5b001ead5bcf895bc2911c1d260e06bd987 1.2s done
#4 sha256:bb7a0c6ab9c129a399a3c8f034cd0de30406766d61a6694f150b4ab9e64c560c 56.62MB / 214.15MB 1.9s
#4 extracting sha256:c5c735a83dbd58e1c83f8d52abdc51068e27c00405f53d59802d4954a6b5398a 0.1s
#4 sha256:5fb9fa7513e6a72bf7daf0a75e97c441f1ed7ff69c8609d1c429fdf3a6dc846b 200.85MB / 200.85MB 2.1s
#4 sha256:bb7a0c6ab9c129a399a3c8f034cd0de30406766d61a6694f150b4ab9e64c560c 83.89MB / 214.15MB 2.1s
#4 sha256:5fb9fa7513e6a72bf7daf0a75e97c441f1ed7ff69c8609d1c429fdf3a6dc846b 200.85MB / 200.85MB 2.2s done
#4 sha256:bb7a0c6ab9c129a399a3c8f034cd0de30406766d61a6694f150b4ab9e64c560c 98.57MB / 214.15MB 2.2s
#4 sha256:bb7a0c6ab9c129a399a3c8f034cd0de30406766d61a6694f150b4ab9e64c560c 111.15MB / 214.15MB 2.3s
#4 sha256:bb7a0c6ab9c129a399a3c8f034cd0de30406766d61a6694f150b4ab9e64c560c 125.83MB / 214.15MB 2.4s
#4 sha256:bb7a0c6ab9c129a399a3c8f034cd0de30406766d61a6694f150b4ab9e64c560c 155.19MB / 214.15MB 2.6s
#4 sha256:bb7a0c6ab9c129a399a3c8f034cd0de30406766d61a6694f150b4ab9e64c560c 169.87MB / 214.15MB 2.7s
#4 sha256:bb7a0c6ab9c129a399a3c8f034cd0de30406766d61a6694f150b4ab9e64c560c 185.60MB / 214.15MB 2.8s
#4 sha256:bb7a0c6ab9c129a399a3c8f034cd0de30406766d61a6694f150b4ab9e64c560c 200.05MB / 214.15MB 2.9s
#4 sha256:bb7a0c6ab9c129a399a3c8f034cd0de30406766d61a6694f150b4ab9e64c560c 214.15MB / 214.15MB 3.1s
#4 extracting sha256:c5c735a83dbd58e1c83f8d52abdc51068e27c00405f53d59802d4954a6b5398a 1.1s done
#4 sha256:bb7a0c6ab9c129a399a3c8f034cd0de30406766d61a6694f150b4ab9e64c560c 214.15MB / 214.15MB 3.4s done
#4 extracting sha256:5fb9fa7513e6a72bf7daf0a75e97c441f1ed7ff69c8609d1c429fdf3a6dc846b
#4 extracting sha256:5fb9fa7513e6a72bf7daf0a75e97c441f1ed7ff69c8609d1c429fdf3a6dc846b 2.0s done
#4 extracting sha256:2af8e2a543d81b57575a2e457bd1e98ffc061b15639dac3be5ff6c2702b9ea1a
#4 extracting sha256:2af8e2a543d81b57575a2e457bd1e98ffc061b15639dac3be5ff6c2702b9ea1a done
#4 extracting sha256:14d68137d870fdc4bc849fbe5c5571ca3e6d9a7b2c5bf1c7e928ccf716dd3b4a 0.1s
#4 extracting sha256:14d68137d870fdc4bc849fbe5c5571ca3e6d9a7b2c5bf1c7e928ccf716dd3b4a 0.5s done
#4 extracting sha256:320659737461e071e3d809231861a7487daaa79805c57f97015ff020f34a939a
#4 extracting sha256:320659737461e071e3d809231861a7487daaa79805c57f97015ff020f34a939a 0.1s done
#4 extracting sha256:1dea7716181a505cea41832dc84691b858a8f64471cb352d8c29cec06e428aeb 0.1s
#4 extracting sha256:1dea7716181a505cea41832dc84691b858a8f64471cb352d8c29cec06e428aeb 1.2s done
#4 extracting sha256:c9480a4b593fb5abc117a5e01c80d8495c9fd89e743757730c712545f425c9f3
#4 extracting sha256:c9480a4b593fb5abc117a5e01c80d8495c9fd89e743757730c712545f425c9f3 done
#4 extracting sha256:812216efaf878f5ff8086b6efdccec1cb090228107efd62db47d048c927c4f6a done
#4 extracting sha256:4f4fb700ef54461cfa02571ae0db9a0dc1e0cdb5577484a6d75e68dc38e8acc1 done
#4 extracting sha256:bb7a0c6ab9c129a399a3c8f034cd0de30406766d61a6694f150b4ab9e64c560c 0.1s
#4 extracting sha256:bb7a0c6ab9c129a399a3c8f034cd0de30406766d61a6694f150b4ab9e64c560c 1.6s done
#4 extracting sha256:2c0021742fe2b9491f62c3d89da10492c175081bd17d77efd0f22a298c37ad64
#4 extracting sha256:2c0021742fe2b9491f62c3d89da10492c175081bd17d77efd0f22a298c37ad64 done
#4 DONE 10.2s

#5 [2/2] RUN :
#5 DONE 0.2s

#6 exporting to image
#6 exporting layers
#6 exporting layers 0.8s done
#6 writing image sha256:25a10213b617b3ccd4d940026ff828ec9fc5ffc7b024da2d6fb462309115faef done
#6 naming to docker.io/library/example_scala:test done
#6 DONE 0.8s
====================================================================
+/tmp/viash_test_example_scala9293231472653507033/test_test/test_executable
warning: 1 deprecation
warning: 1 deprecation (since 2.13.3)
warning: 2 deprecations in total; re-run with -deprecation for details
>>> Create input test file
>>> Run executable
warning: 1 deprecation; re-run with -deprecation for details
Copying 'foo.txt' to 'bar.txt'.
>>> Check whether output file exists
>>> Check whether input and output file are the same
>>> Test finished successfully
====================================================================
SUCCESS! All 1 out of 1 test scripts succeeded!
Cleaning up temporary directory

When running viash test, Viash will follow the following steps:

  1. Create a temporary directory
  2. Build the component into the main executable
  3. (Re-)build the Docker image for the component
  4. Iterate over all unit test scripts:
  1. Build the unit test into an executable
  2. Run the unit test, passing the main executable as an argument
  1. Return exit code 0 if all of the above steps succeed, otherwise 0

Bonus: unit testing all of the components

If you have multiple Viash components located in a directory called src/, what happens when you run the following?

viash ns test --parallel --src src/