float.sh must print exactly three digits after the dot

compose-dev.yaml

@@ -0,0 +1,12 @@
+services:
+  app:
+    entrypoint:
+    - sleep
+    - infinity
+    image: docker/dev-environments-default:stable-1
+    init: true
+    volumes:
+    - type: bind
+      source: /var/run/docker.sock
+      target: /var/run/docker.sock
+

help/float.sh

@@ -20,14 +20,36 @@
 # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 # SOFTWARE.
+#!/bin/bash
+
+# Function to check if a string is a valid float number
+is_float() {
+    local re="^-?[0-9]*\.?[0-9]+$"
+    [[ $1 =~ $re ]]
+}
+
 set -e
 set -o pipefail
 
 num=$(cat)
 
+# Check if the input is empty or consists of only spaces
+if [[ -z "${num}" || "${num}" =~ ^[[:space:]]+$ ]]; then
+    echo "0.000"  # Return default value for empty input or input with spaces
+    exit
+fi
+
 if [ "${num}" == 'NaN' ]; then
     printf '%s' "${num}"
     exit
 fi
+# Check if the input is a valid float number
+if ! is_float "$num"; then
+    echo "0.000"
+    exit 1
+fi
+
+num_truncated=$(echo "$num * 1000 / 1" | bc)
 
-(LC_NUMERIC=C printf '%.8f' "${num}" 2>/dev/null || echo 0) | sed -e 's/0\+$//' | sed -e 's/\.$//'
+# Divide by 1000 to get back to the correct scale and format to three decimal places
+(LC_NUMERIC=C printf '%.3f' $(echo "$num_truncated / 1000" | bc -l) 2>/dev/null || echo "0.000")

tests/help/test-float.sh

@@ -25,32 +25,38 @@ set -o pipefail
 
 stdout=$2
 
-num=$(echo '.42' | "${LOCAL}/help/float.sh")
-test "${num}" = '0.42'
-echo "${num}" >> "${stdout}"
+test "$(echo '.42' | "${LOCAL}/help/float.sh")" = '0.420'
 echo "👍🏻 Corrected floating point number"
 
-test "$(echo '254.42' | "${LOCAL}/help/float.sh")" = '254.42'
+test "$(echo '254.42' | "${LOCAL}/help/float.sh")" = '254.420'
 echo "👍🏻 Corrected longer floating point number"
 
-test "$(echo '256' | "${LOCAL}/help/float.sh")" = '256'
+test "$(echo '256' | "${LOCAL}/help/float.sh")" = '256.000'
 echo "👍🏻 Corrected integer number"
 
-test "$(echo '09' | "${LOCAL}/help/float.sh")" = '9'
+test "$(echo '09' | "${LOCAL}/help/float.sh")" = '9.000'
 echo "👍🏻 Corrected integer number with leading zero"
 
-test "$(echo '' | "${LOCAL}/help/float.sh")" = '0'
+test "$(echo '' | "${LOCAL}/help/float.sh")" = '0.000'
 echo "👍🏻 Corrected integer number with empty text"
 
-test "$(echo '  ' | "${LOCAL}/help/float.sh")" = '0'
+test "$(echo '  ' | "${LOCAL}/help/float.sh")" = '0.000'
 echo "👍🏻 Corrected integer number with spaces"
 
-test "$(echo 'Blank' | "${LOCAL}/help/float.sh")" = '0'
+test "$(echo 'Blank' | "${LOCAL}/help/float.sh")" = '0.000'
 echo "👍🏻 Corrected integer number with text input"
 
 test "$(echo 'NaN' | "${LOCAL}/help/float.sh")" = 'NaN'
 echo "👍🏻 Corrected integer number with NaN"
 
-test "$(echo '.000000099' | "${LOCAL}/help/float.sh")" = '0.0000001'
-echo "👍🏻 Corrected small precision number"
+test "$(echo '.000000099' | "${LOCAL}/help/float.sh")" = '0.000'
+echo "👍🏻 Printed decimal number with 3 digits"
 
+test "$(echo '254' | "${LOCAL}/help/float.sh")" = '254.000'
+echo "👍🏻 Printed decimal number with 3 digits"
+
+test "$(echo '0.3' | "${LOCAL}/help/float.sh")" = '0.300'
+echo "👍🏻 Printed decimal number with 3 digits"
+
+test "$(echo '0.00023' | "${LOCAL}/help/float.sh")" = '0.000'
+echo "👍🏻 Printed decimal number with 3 digits"

tests/metrics/test-multimetric.sh

@@ -49,10 +49,10 @@ EOT
     "${LOCAL}/metrics/multimetric.sh" "${java}" "${temp}/stdout"
     cat "${TARGET}/temp/multimetric.json"
     cat "${temp}/stdout"
-    grep "hsd 6 " "${temp}/stdout"
-    grep "hse 1133.21789508 " "${temp}/stdout"
-    grep "hsv 188.86964918 " "${temp}/stdout"
-    grep "midx 100 " "${temp}/stdout"
-    grep "fout 0 " "${temp}/stdout"
+    grep "hsd 6.000 " "${temp}/stdout"
+    grep "hse 1133.217 " "${temp}/stdout"
+    grep "hsv 188.869 " "${temp}/stdout"
+    grep "midx 100.000 " "${temp}/stdout"
+    grep "fout 0.000 " "${temp}/stdout"
 } > "${stdout}" 2>&1
 echo "👍🏻 Correctly counted a few metrics"