diff --git a/Cargo.lock b/Cargo.lock
index 1ee34f2..fbc9dc3 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -355,9 +355,9 @@ checksum = "1fd0f2584146f6f2ef48085050886acf353beff7305ebd1ae69500e27c67f64b"
 
 [[package]]
 name = "bytes"
-version = "1.7.1"
+version = "1.7.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8318a53db07bb3f8dca91a600466bdb3f2eaadeedfdbcf02e1accbad9271ba50"
+checksum = "428d9aa8fbc0670b7b8d6030a7fadd0f86151cae55e4dbbece15f3780a3dfaf3"
 
 [[package]]
 name = "bytesize"
@@ -376,9 +376,9 @@ dependencies = [
 
 [[package]]
 name = "cc"
-version = "1.1.20"
+version = "1.1.21"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "45bcde016d64c21da4be18b655631e5ab6d3107607e71a73a9f53eb48aae23fb"
+checksum = "07b1695e2c7e8fc85310cde85aeaab7e3097f593c91d209d3f9df76c928100f0"
 dependencies = [
  "shlex",
 ]
@@ -1628,7 +1628,7 @@ dependencies = [
 
 [[package]]
 name = "matrix-commander"
-version = "0.9.5"
+version = "0.9.6"
 dependencies = [
  "clap",
  "colored",
@@ -1646,6 +1646,7 @@ dependencies = [
  "serde_json",
  "thiserror",
  "tokio",
+ "tokio-test",
  "tracing",
  "tracing-subscriber",
  "update-informer",
@@ -3228,6 +3229,19 @@ dependencies = [
  "tokio-util",
 ]
 
+[[package]]
+name = "tokio-test"
+version = "0.4.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2468baabc3311435b55dd935f702f42cd1b8abb7e754fb7dfb16bd36aa88f9f7"
+dependencies = [
+ "async-stream",
+ "bytes",
+ "futures-core",
+ "tokio",
+ "tokio-stream",
+]
+
 [[package]]
 name = "tokio-util"
 version = "0.7.12"
@@ -3446,9 +3460,9 @@ checksum = "e91b56cd4cadaeb79bbf1a5645f6b4f8dc5bde8834ad5894a8db35fda9efa1fe"
 
 [[package]]
 name = "unicode-normalization"
-version = "0.1.23"
+version = "0.1.24"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a56d1686db2308d901306f92a263857ef59ea39678a5458e7cb17f01415101f5"
+checksum = "5033c97c4262335cded6d6fc3e5c18ab755e1a3dc96376350f3d8e9f009ad956"
 dependencies = [
  "tinyvec",
 ]
@@ -3504,7 +3518,7 @@ dependencies = [
  "serde",
  "serde_json",
  "url",
- "webpki-roots 0.26.5",
+ "webpki-roots 0.26.6",
 ]
 
 [[package]]
@@ -3713,9 +3727,9 @@ checksum = "5f20c57d8d7db6d3b86154206ae5d8fba62dd39573114de97c2cb0578251f8e1"
 
 [[package]]
 name = "webpki-roots"
-version = "0.26.5"
+version = "0.26.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0bd24728e5af82c6c4ec1b66ac4844bdf8156257fccda846ec58b42cd0cdbe6a"
+checksum = "841c67bff177718f1d4dfefde8d8f0e78f9b6589319ba88312f567fc5841a958"
 dependencies = [
  "rustls-pki-types",
 ]
diff --git a/Cargo.toml b/Cargo.toml
index 91e61e9..3e7363f 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -2,7 +2,7 @@
 
 [package]
 name = "matrix-commander"
-version = "0.9.5"
+version = "0.9.6"
 edition = "2021"
 description = "simple but convenient CLI-based Matrix client app for sending and receiving"
 documentation = "https://docs.rs/matrix-commander"
@@ -60,10 +60,13 @@ url = { version = "2.5", features = ["serde"] }
 
 
 [dev-dependencies]
+# "matrix-commander-rs" will be the Rust program
+# to perform tests on async functions
+tokio-test = "0.4"
+
 # this is to distinguish it from "matrix-commander" which is the Python program
 # For people that have both Python and Rust installed:
 # "matrix-commander" will remain the Python program
-# "matrix-commander-rs" will be the Rust program
 [[bin]]
 name = "matrix-commander-rs"
 path = "src/main.rs"
diff --git a/VERSION b/VERSION
index b0bb878..85b7c69 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-0.9.5
+0.9.6
diff --git a/scripts/workflow.sh b/scripts/workflow.sh
index 238c73e..31ed772 100755
--- a/scripts/workflow.sh
+++ b/scripts/workflow.sh
@@ -64,20 +64,21 @@ select opt in "${options[@]}"; do
 done
 
 PS3='Please enter your choice: '
-OPT1="cargo test         # run this testcase"
-OPT2="tests/test-send.sh # run this testcase"
-OPT3="tests/test-send.sh # run this testcase"
-OPT4="tests/test-send.sh # run this testcase"
-OPT5="tests/test-send.sh # run this testcase"
-OPT6="tests/test-send.sh # run this testcase"
+OPT1="cargo test                     # run this testcase"
+OPT2="tests/test-version.sh          # run this testcase"
+OPT3="tests/test-send.sh             # run this testcase"
+OPT4="tests/test-devices.sh          # run this testcase"
+OPT5="tests/test-rooms.sh            # run this testcase"
+OPT6="tests/test-get-profile.sh      # run this testcase"
+OPT7="tests/test-get-display-name.sh # run this testcase"
 OPTC="Continue"
 OPTQ="Quit"
-options=("$OPT1" "$OPT2" "$OPT3" "$OPT4" "$OPT5" "$OPT6" "$OPTC" "$OPTQ")
+options=("$OPT1" "$OPT2" "$OPT3" "$OPT4" "$OPT5" "$OPT6" "$OPT7" "$OPTC" "$OPTQ")
 select opt in "${options[@]}"; do
     if [ "${REPLY,,}" == "c" ]; then opt="$OPTC"; fi
     if [ "${REPLY,,}" == "q" ]; then opt="$OPTQ"; fi
     case ${opt} in
-    "$OPT1" | "$OPT2" | "$OPT3" | "$OPT4" | "$OPT5" | "$OPT6")
+    "$OPT1" | "$OPT2" | "$OPT3" | "$OPT4" | "$OPT5" | "$OPT6" | "$OPT7")
         OPTE=${opt%%#*} # remove everything after first #
         echo "Performing: $OPTE"
         $OPTE
diff --git a/src/main.rs b/src/main.rs
index 962d003..99449df 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -648,7 +648,7 @@ impl fmt::Display for LogLevel {
 
 /// Enumerator used for --output option
 #[derive(Clone, Debug, Copy, PartialEq, Default, ValueEnum)]
-enum Output {
+pub enum Output {
     // None: only useful if one needs to know if option was used or not.
     // Sort of like an or instead of an Option<Sync>.
     // We do not need to know if user used the option or not,
@@ -2455,30 +2455,41 @@ pub async fn readme() {
 }
 
 /// Prints the version information
-pub fn version() {
+pub fn version(output: Output) {
     let version = if stdout().is_terminal() {
         get_version().green()
     } else {
         get_version().normal()
     };
-    println!();
-    println!(
-        "  _|      _|      _|_|_|                     {}",
-        get_prog_without_ext()
-    );
-    print!("  _|_|  _|_|    _|             _~^~^~_       ");
-    println!("a rusty vision of a Matrix CLI client");
-    println!(
-        "  _|  _|  _|    _|         \\) /  o o  \\ (/   version {}",
-        version
-    );
-    println!(
-        "  _|      _|    _|           '_   -   _'     repo {}",
-        get_pkg_repository()
-    );
-    print!("  _|      _|      _|_|_|     / '-----' \\     ");
-    println!("please submit PRs to make the vision a reality");
-    println!();
+    match output {
+        Output::Text => {
+            println!();
+            println!(
+                "  _|      _|      _|_|_|                     {}",
+                get_prog_without_ext()
+            );
+            print!("  _|_|  _|_|    _|             _~^~^~_       ");
+            println!("a rusty vision of a Matrix CLI client");
+            println!(
+                "  _|  _|  _|    _|         \\) /  o o  \\ (/   version {}",
+                version
+            );
+            println!(
+                "  _|      _|    _|           '_   -   _'     repo {}",
+                get_pkg_repository()
+            );
+            print!("  _|      _|      _|_|_|     / '-----' \\     ");
+            println!("please submit PRs to make the vision a reality");
+            println!();
+        }
+        Output::JsonSpec => (),
+        _ => println!(
+            "{{\"program\": {:?}, \"version\": {:?}, \"repo\": {:?}}}",
+            get_prog_without_ext(),
+            get_version(),
+            get_pkg_repository()
+        ),
+    }
 }
 
 /// Prints the installed version and the latest crates.io-available version
@@ -3521,8 +3532,8 @@ async fn main() -> Result<(), Error> {
     debug!("get-masterkey option is {:?}", ap.get_masterkey);
 
     match ap.version {
-        None => (),                     // do nothing
-        Some(None) => crate::version(), // print version
+        None => (),                              // do nothing
+        Some(None) => crate::version(ap.output), // print version
         Some(Some(Version::Check)) => crate::version_check(),
     }
     if ap.contribute {
@@ -4295,9 +4306,43 @@ mod tests {
     // Note this useful idiom: importing names from outer (for mod tests) scope.
     use super::*;
 
+    // for testing async functions
+    // see: https://blog.x5ff.xyz/blog/async-tests-tokio-rust/
+    macro_rules! aw {
+        ($e:expr) => {
+            tokio_test::block_on($e)
+        };
+    }
+
+    #[test]
+    fn test_usage() {
+        assert_eq!(usage(), ());
+    }
+
+    #[test]
+    fn test_help() {
+        assert_eq!(help(), ());
+    }
+
+    #[test]
+    fn test_manual() {
+        assert_eq!(manual(), ());
+    }
+
+    #[test]
+    fn test_readme() {
+        assert_eq!(aw!(readme()), ());
+    }
+
     #[test]
     fn test_version() {
-        assert_eq!(version(), ());
+        assert_eq!(version(Output::Text), ());
+        assert_eq!(version(Output::Json), ());
+    }
+
+    #[test]
+    fn test_version_check() {
+        assert_eq!(version_check(), ());
     }
 
     #[test]
diff --git a/tests/test-devices.sh b/tests/test-devices.sh
new file mode 100755
index 0000000..2089a15
--- /dev/null
+++ b/tests/test-devices.sh
@@ -0,0 +1,88 @@
+#!/bin/bash
+
+if [ -t 1 ]; then
+    # echo terminal
+    green="\e[1;37;1;42m"
+    off="\e[0m"
+    red="\e[1;37;1;41m"
+else
+    # echo "not a terminal", e.g. being piped out
+    green=""
+    off=""
+    red=""
+fi
+
+# just in case PATH is not set correctly
+PATH="./target/debug/:./target/release/:../target/debug/:../target/release/:.:./matrix_commander-rs:../matrix_commander-rs:$PATH"
+
+# One may set similar values in the terminal before calling the script.
+# export MCRS_OPTIONS="-d --room \!...some.room.id:matrix.example.org "
+
+# getting some optional arguments
+if [ "$MCRS_OPTIONS" != "" ]; then
+    echo "Exellent. Variable MCRS_OPTIONS already set. " \
+        "Using \"$MCRS_OPTIONS\" as additional options for testing."
+else
+    echo "Optionally, set variable \"MCRS_OPTIONS\" for further options."
+fi
+
+echo "rustc version is: $(rustc -vV | xargs)"
+echo "rustup version is: $(rustup --version)"
+echo "cargo version is: $(cargo --version)"
+echo "GITHUB_WORKFLOW = $GITHUB_WORKFLOW"
+echo "GITHUB_REPOSITORY = $GITHUB_REPOSITORY"
+echo "MCRS_OPTIONS = $MCRS_OPTIONS"
+
+if [[ "$GITHUB_WORKFLOW" != "" ]]; then # if in Github Action Workflow
+    echo "I am in Github Action Workflow $GITHUB_WORKFLOW."
+fi
+
+failures=0
+
+function test1() {
+    echo "=== Test 1: get devices in text format ==="
+    matrix-commander-rs --devices $MCRS_OPTIONS
+    res=$?
+    if [ "$res" == "0" ]; then
+        echo "SUCCESS"
+    else
+        echo >&2 "FAILURE"
+        let failures++
+    fi
+}
+
+function test2() {
+    echo "=== Test 2: get devices in JSON format ==="
+    fofile="/tmp/matrix-comander-rs-test-devices.json"
+    matrix-commander-rs --devices --output json $MCRS_OPTIONS >$fofile
+    res=$?
+    if [ "$res" == "0" ]; then
+        if cat $fofile | jq -e . >/dev/null 2>&1; then
+            echo "Parsed JSON successfully and got something other than false/null"
+            echo "SUCCESS"
+        else
+            echo "Failed to parse JSON, or got false/null"
+            echo >&2 "FAILURE"
+            let failures++
+        fi
+    else
+        echo >&2 "FAILURE"
+        let failures++
+    fi
+    rm $fofile
+}
+
+test1
+test2
+
+failtext="failure"
+if [ "$failures" != "1" ]; then
+    failtext+="s" ## append an "s" to the end
+fi
+if [ "$failures" == "0" ]; then
+    echo -e "${green}OK: Finished test series with $failures failures.${off}"
+else
+    echo -e "${red}ERROR: Finished test series with $failures $failtext.${off}"
+fi
+
+exit $failures
diff --git a/tests/test-get-display-name.sh b/tests/test-get-display-name.sh
new file mode 100755
index 0000000..a3ac011
--- /dev/null
+++ b/tests/test-get-display-name.sh
@@ -0,0 +1,88 @@
+#!/bin/bash
+
+if [ -t 1 ]; then
+    # echo terminal
+    green="\e[1;37;1;42m"
+    off="\e[0m"
+    red="\e[1;37;1;41m"
+else
+    # echo "not a terminal", e.g. being piped out
+    green=""
+    off=""
+    red=""
+fi
+
+# just in case PATH is not set correctly
+PATH="./target/debug/:./target/release/:../target/debug/:../target/release/:.:./matrix_commander-rs:../matrix_commander-rs:$PATH"
+
+# One may set similar values in the terminal before calling the script.
+# export MCRS_OPTIONS="-d --room \!...some.room.id:matrix.example.org "
+
+# getting some optional arguments
+if [ "$MCRS_OPTIONS" != "" ]; then
+    echo "Exellent. Variable MCRS_OPTIONS already set. " \
+        "Using \"$MCRS_OPTIONS\" as additional options for testing."
+else
+    echo "Optionally, set variable \"MCRS_OPTIONS\" for further options."
+fi
+
+echo "rustc version is: $(rustc -vV | xargs)"
+echo "rustup version is: $(rustup --version)"
+echo "cargo version is: $(cargo --version)"
+echo "GITHUB_WORKFLOW = $GITHUB_WORKFLOW"
+echo "GITHUB_REPOSITORY = $GITHUB_REPOSITORY"
+echo "MCRS_OPTIONS = $MCRS_OPTIONS"
+
+if [[ "$GITHUB_WORKFLOW" != "" ]]; then # if in Github Action Workflow
+    echo "I am in Github Action Workflow $GITHUB_WORKFLOW."
+fi
+
+failures=0
+
+function test1() {
+    echo "=== Test 1: get display-name in text format ==="
+    matrix-commander-rs --get-display-name $MCRS_OPTIONS
+    res=$?
+    if [ "$res" == "0" ]; then
+        echo "SUCCESS"
+    else
+        echo >&2 "FAILURE"
+        let failures++
+    fi
+}
+
+function test2() {
+    echo "=== Test 2: get display-name in JSON format ==="
+    fofile="/tmp/matrix-comander-rs-test-get-display-name.json"
+    matrix-commander-rs --get-display-name --output json $MCRS_OPTIONS >$fofile
+    res=$?
+    if [ "$res" == "0" ]; then
+        if cat $fofile | jq -e . >/dev/null 2>&1; then
+            echo "Parsed JSON successfully and got something other than false/null"
+            echo "SUCCESS"
+        else
+            echo "Failed to parse JSON, or got false/null"
+            echo >&2 "FAILURE"
+            let failures++
+        fi
+    else
+        echo >&2 "FAILURE"
+        let failures++
+    fi
+    rm $fofile
+}
+
+test1
+test2
+
+failtext="failure"
+if [ "$failures" != "1" ]; then
+    failtext+="s" ## append an "s" to the end
+fi
+if [ "$failures" == "0" ]; then
+    echo -e "${green}OK: Finished test series with $failures failures.${off}"
+else
+    echo -e "${red}ERROR: Finished test series with $failures $failtext.${off}"
+fi
+
+exit $failures
diff --git a/tests/test-get-profile.sh b/tests/test-get-profile.sh
new file mode 100755
index 0000000..f70eeca
--- /dev/null
+++ b/tests/test-get-profile.sh
@@ -0,0 +1,88 @@
+#!/bin/bash
+
+if [ -t 1 ]; then
+    # echo terminal
+    green="\e[1;37;1;42m"
+    off="\e[0m"
+    red="\e[1;37;1;41m"
+else
+    # echo "not a terminal", e.g. being piped out
+    green=""
+    off=""
+    red=""
+fi
+
+# just in case PATH is not set correctly
+PATH="./target/debug/:./target/release/:../target/debug/:../target/release/:.:./matrix_commander-rs:../matrix_commander-rs:$PATH"
+
+# One may set similar values in the terminal before calling the script.
+# export MCRS_OPTIONS="-d --room \!...some.room.id:matrix.example.org "
+
+# getting some optional arguments
+if [ "$MCRS_OPTIONS" != "" ]; then
+    echo "Exellent. Variable MCRS_OPTIONS already set. " \
+        "Using \"$MCRS_OPTIONS\" as additional options for testing."
+else
+    echo "Optionally, set variable \"MCRS_OPTIONS\" for further options."
+fi
+
+echo "rustc version is: $(rustc -vV | xargs)"
+echo "rustup version is: $(rustup --version)"
+echo "cargo version is: $(cargo --version)"
+echo "GITHUB_WORKFLOW = $GITHUB_WORKFLOW"
+echo "GITHUB_REPOSITORY = $GITHUB_REPOSITORY"
+echo "MCRS_OPTIONS = $MCRS_OPTIONS"
+
+if [[ "$GITHUB_WORKFLOW" != "" ]]; then # if in Github Action Workflow
+    echo "I am in Github Action Workflow $GITHUB_WORKFLOW."
+fi
+
+failures=0
+
+function test1() {
+    echo "=== Test 1: get profile in text format ==="
+    matrix-commander-rs --get-profile $MCRS_OPTIONS
+    res=$?
+    if [ "$res" == "0" ]; then
+        echo "SUCCESS"
+    else
+        echo >&2 "FAILURE"
+        let failures++
+    fi
+}
+
+function test2() {
+    echo "=== Test 2: get profile in JSON format ==="
+    fofile="/tmp/matrix-comander-rs-test-get-profile.json"
+    matrix-commander-rs --get-profile --output json $MCRS_OPTIONS >$fofile
+    res=$?
+    if [ "$res" == "0" ]; then
+        if cat $fofile | jq -e . >/dev/null 2>&1; then
+            echo "Parsed JSON successfully and got something other than false/null"
+            echo "SUCCESS"
+        else
+            echo "Failed to parse JSON, or got false/null"
+            echo >&2 "FAILURE"
+            let failures++
+        fi
+    else
+        echo >&2 "FAILURE"
+        let failures++
+    fi
+    rm $fofile
+}
+
+test1
+test2
+
+failtext="failure"
+if [ "$failures" != "1" ]; then
+    failtext+="s" ## append an "s" to the end
+fi
+if [ "$failures" == "0" ]; then
+    echo -e "${green}OK: Finished test series with $failures failures.${off}"
+else
+    echo -e "${red}ERROR: Finished test series with $failures $failtext.${off}"
+fi
+
+exit $failures
diff --git a/tests/test-rooms.sh b/tests/test-rooms.sh
new file mode 100755
index 0000000..ad1214f
--- /dev/null
+++ b/tests/test-rooms.sh
@@ -0,0 +1,88 @@
+#!/bin/bash
+
+if [ -t 1 ]; then
+    # echo terminal
+    green="\e[1;37;1;42m"
+    off="\e[0m"
+    red="\e[1;37;1;41m"
+else
+    # echo "not a terminal", e.g. being piped out
+    green=""
+    off=""
+    red=""
+fi
+
+# just in case PATH is not set correctly
+PATH="./target/debug/:./target/release/:../target/debug/:../target/release/:.:./matrix_commander-rs:../matrix_commander-rs:$PATH"
+
+# One may set similar values in the terminal before calling the script.
+# export MCRS_OPTIONS="-d --room \!...some.room.id:matrix.example.org "
+
+# getting some optional arguments
+if [ "$MCRS_OPTIONS" != "" ]; then
+    echo "Exellent. Variable MCRS_OPTIONS already set. " \
+        "Using \"$MCRS_OPTIONS\" as additional options for testing."
+else
+    echo "Optionally, set variable \"MCRS_OPTIONS\" for further options."
+fi
+
+echo "rustc version is: $(rustc -vV | xargs)"
+echo "rustup version is: $(rustup --version)"
+echo "cargo version is: $(cargo --version)"
+echo "GITHUB_WORKFLOW = $GITHUB_WORKFLOW"
+echo "GITHUB_REPOSITORY = $GITHUB_REPOSITORY"
+echo "MCRS_OPTIONS = $MCRS_OPTIONS"
+
+if [[ "$GITHUB_WORKFLOW" != "" ]]; then # if in Github Action Workflow
+    echo "I am in Github Action Workflow $GITHUB_WORKFLOW."
+fi
+
+failures=0
+
+function test1() {
+    echo "=== Test 1: get rooms in text format ==="
+    matrix-commander-rs --rooms $MCRS_OPTIONS
+    res=$?
+    if [ "$res" == "0" ]; then
+        echo "SUCCESS"
+    else
+        echo >&2 "FAILURE"
+        let failures++
+    fi
+}
+
+function test2() {
+    echo "=== Test 2: get rooms in JSON format ==="
+    fofile="/tmp/matrix-comander-rs-test-rooms.json"
+    matrix-commander-rs --rooms --output json $MCRS_OPTIONS >$fofile
+    res=$?
+    if [ "$res" == "0" ]; then
+        if cat $fofile | jq -e . >/dev/null 2>&1; then
+            echo "Parsed JSON successfully and got something other than false/null"
+            echo "SUCCESS"
+        else
+            echo "Failed to parse JSON, or got false/null"
+            echo >&2 "FAILURE"
+            let failures++
+        fi
+    else
+        echo >&2 "FAILURE"
+        let failures++
+    fi
+    rm $fofile
+}
+
+test1
+test2
+
+failtext="failure"
+if [ "$failures" != "1" ]; then
+    failtext+="s" ## append an "s" to the end
+fi
+if [ "$failures" == "0" ]; then
+    echo -e "${green}OK: Finished test series with $failures failures.${off}"
+else
+    echo -e "${red}ERROR: Finished test series with $failures $failtext.${off}"
+fi
+
+exit $failures
diff --git a/tests/test-send.sh b/tests/test-send.sh
new file mode 100755
index 0000000..edc90e3
--- /dev/null
+++ b/tests/test-send.sh
@@ -0,0 +1,90 @@
+#!/bin/bash
+
+if [ -t 1 ]; then
+    # echo terminal
+    green="\e[1;37;1;42m"
+    off="\e[0m"
+    red="\e[1;37;1;41m"
+else
+    # echo "not a terminal", e.g. being piped out
+    green=""
+    off=""
+    red=""
+fi
+
+# just in case PATH is not set correctly
+PATH="./target/debug/:./target/release/:../target/debug/:../target/release/:.:./matrix_commander-rs:../matrix_commander-rs:$PATH"
+
+# One may set similar values in the terminal before calling the script.
+# export MCRS_OPTIONS="-d --room \!...some.room.id:matrix.example.org "
+
+# getting some optional arguments
+if [ "$MCRS_OPTIONS" != "" ]; then
+    echo "Exellent. Variable MCRS_OPTIONS already set. " \
+        "Using \"$MCRS_OPTIONS\" as additional options for testing."
+else
+    echo "If desired, set variable \"MCRS_OPTIONS\" for further options."
+fi
+
+echo "rustc version is: $(rustc -vV | xargs)"
+echo "rustup version is: $(rustup --version)"
+echo "cargo version is: $(cargo --version)"
+echo "GITHUB_WORKFLOW = $GITHUB_WORKFLOW"
+echo "GITHUB_REPOSITORY = $GITHUB_REPOSITORY"
+echo "MCRS_OPTIONS = $MCRS_OPTIONS"
+
+if [[ "$GITHUB_WORKFLOW" != "" ]]; then # if in Github Action Workflow
+    echo "I am in Github Action Workflow $GITHUB_WORKFLOW."
+fi
+
+failures=0
+
+function test1() {
+    echo "=== Test 1: send a message ==="
+    matrix-commander-rs -m foo $MCRS_OPTIONS
+    res=$?
+    if [ "$res" == "0" ]; then
+        echo "SUCCESS"
+    else
+        echo >&2 "FAILURE"
+        let failures++
+    fi
+}
+
+function test2() {
+    echo "=== Test 2: send two messages ==="
+    matrix-commander-rs -m "foo" "bar" $MCRS_OPTIONS
+    res=$?
+    if [ "$res" == "0" ]; then
+        echo "SUCCESS"
+    else
+        echo >&2 "FAILURE"
+        let failures++
+    fi
+}
+function test3() {
+    echo "=== Test 3: send two messages ==="
+    res=$(matrix-commander-rs -m "foo" "bar" -d $MCRS_OPTIONS 2>&1 >/dev/null | grep "message send successful" | wc -l)
+    if [ "$res" == "2" ]; then
+        echo "SUCCESS"
+    else
+        echo >&2 "FAILURE"
+        let failures++
+    fi
+}
+
+test1
+test2
+test3
+
+failtext="failure"
+if [ "$failures" != "1" ]; then
+    failtext+="s" ## append an "s" to the end
+fi
+if [ "$failures" == "0" ]; then
+    echo -e "${green}OK: Finished test series with $failures failures.${off}"
+else
+    echo -e "${red}ERROR: Finished test series with $failures $failtext.${off}"
+fi
+
+exit $failures
diff --git a/tests/test-version.sh b/tests/test-version.sh
new file mode 100755
index 0000000..ce811e4
--- /dev/null
+++ b/tests/test-version.sh
@@ -0,0 +1,88 @@
+#!/bin/bash
+
+if [ -t 1 ]; then
+    # echo terminal
+    green="\e[1;37;1;42m"
+    off="\e[0m"
+    red="\e[1;37;1;41m"
+else
+    # echo "not a terminal", e.g. being piped out
+    green=""
+    off=""
+    red=""
+fi
+
+# just in case PATH is not set correctly
+PATH="./target/debug/:./target/release/:../target/debug/:../target/release/:.:./matrix_commander-rs:../matrix_commander-rs:$PATH"
+
+# One may set similar values in the terminal before calling the script.
+# export MCRS_OPTIONS="-d --room \!...some.room.id:matrix.example.org "
+
+# getting some optional arguments
+if [ "$MCRS_OPTIONS" != "" ]; then
+    echo "Exellent. Variable MCRS_OPTIONS already set. " \
+        "Using \"$MCRS_OPTIONS\" as additional options for testing."
+else
+    echo "Optionally, set variable \"MCRS_OPTIONS\" for further options."
+fi
+
+echo "rustc version is: $(rustc -vV | xargs)"
+echo "rustup version is: $(rustup --version)"
+echo "cargo version is: $(cargo --version)"
+echo "GITHUB_WORKFLOW = $GITHUB_WORKFLOW"
+echo "GITHUB_REPOSITORY = $GITHUB_REPOSITORY"
+echo "MCRS_OPTIONS = $MCRS_OPTIONS"
+
+if [[ "$GITHUB_WORKFLOW" != "" ]]; then # if in Github Action Workflow
+    echo "I am in Github Action Workflow $GITHUB_WORKFLOW."
+fi
+
+failures=0
+
+function test1() {
+    echo "=== Test 1: get version in text format ==="
+    matrix-commander-rs --version $MCRS_OPTIONS
+    res=$?
+    if [ "$res" == "0" ]; then
+        echo "SUCCESS"
+    else
+        echo >&2 "FAILURE" echo "FAILURE"
+        let failures++
+    fi
+}
+
+function test2() {
+    echo "=== Test 2: get version in JSON format ==="
+    fofile="/tmp/matrix-comander-rs-test-version.json"
+    matrix-commander-rs --version --output json $MCRS_OPTIONS >$fofile
+    res=$?
+    if [ "$res" == "0" ]; then
+        if cat $fofile | jq -e . >/dev/null 2>&1; then
+            echo "Parsed JSON successfully and got something other than false/null"
+            echo "SUCCESS"
+        else
+            echo "Failed to parse JSON, or got false/null"
+            echo >&2 "FAILURE" echo "FAILURE"
+            let failures++
+        fi
+    else
+        echo >&2 "FAILURE" echo "FAILURE"
+        let failures++
+    fi
+    rm $fofile
+}
+
+test1
+test2
+
+failtext="failure"
+if [ "$failures" != "1" ]; then
+    failtext+="s" ## append an "s" to the end
+fi
+if [ "$failures" == "0" ]; then
+    echo -e "${green}OK: Finished test series with $failures failures.${off}"
+else
+    echo -e "${red}ERROR: Finished test series with $failures $failtext.${off}"
+fi
+
+exit $failures