bat.d/thinkpad{-legacy}: unit tests for feature-detection edge cases

unit-tests/charge-thresholds_thinkpad

@@ -111,3 +111,34 @@ $ sudo tlp-stat -b -- X_THRESH_SIMULATE_READERR=1 | grep -E 'charge_(control|beh
 /sys/class/power_supply/BAT0/charge_control_start_threshold = (not available) [%]
 /sys/class/power_supply/BAT0/charge_control_end_threshold   = (not available) [%]
 /sys/class/power_supply/BAT0/charge_behaviour               = [auto] inhibit-charge force-discharge
+$ # --- Feature Detection Edge Cases
+$ sudo ./kmod-helper acpi_call restore
+$ sudo ./kmod-helper acpi_call enable
+$ sudo tlp-stat -b -- NATACPI_ENABLE=0 | head -8 | tail -5
+Plugin: thinkpad
+Supported features: charge thresholds, recalibration
+Driver usage:
+* natacpi (thinkpad_acpi) = inactive (disabled by configuration)
+* tpacpi-bat (acpi_call)  = active (charge thresholds, recalibration)
+$ sudo ./kmod-helper acpi_call disable
+$ sudo tlp-stat -b -- NATACPI_ENABLE=0 | head -8 | tail -5
+Plugin: thinkpad
+Supported features: none available
+Driver usage:
+* natacpi (thinkpad_acpi) = inactive (disabled by configuration)
+* tpacpi-bat (acpi_call)  = inactive (kernel module 'acpi_call' load error)
+$ sudo ./kmod-helper acpi_call enable
+$ sudo ./kmod-helper acpi_call remove
+$ sudo tlp-stat -b -- NATACPI_ENABLE=0 | head -8 | tail -5
+Plugin: thinkpad
+Supported features: none available
+Driver usage:
+* natacpi (thinkpad_acpi) = inactive (disabled by configuration)
+* tpacpi-bat (acpi_call)  = inactive (kernel module 'acpi_call' not installed)
+$ sudo ./kmod-helper acpi_call restore
+$ sudo tlp-stat -b -- NATACPI_ENABLE=0 TPACPI_ENABLE=0 | head -8 | tail -5
+Plugin: thinkpad
+Supported features: none available
+Driver usage:
+* natacpi (thinkpad_acpi) = inactive (disabled by configuration)
+* tpacpi-bat (acpi_call)  = inactive (disabled by configuration)

unit-tests/charge-thresholds_thinkpad-legacy

@@ -107,3 +107,35 @@ $ sudo tlp-stat -b -- X_THRESH_SIMULATE_READERR=1 | grep -E 'charge_thresh|disch
 /sys/devices/platform/smapi/BAT0/start_charge_thresh        = (not available) [%]
 /sys/devices/platform/smapi/BAT0/stop_charge_thresh         = (not available) [%]
 /sys/devices/platform/smapi/BAT0/force_discharge            =      0
+$ # --- Feature Detection Edge Cases
+$ sudo ./kmod-helper tp_smapi restore
+$ sudo ./kmod-helper tp_smapi enable
+$ sudo tlp-stat -b | head -7 | tail -4
+Plugin: thinkpad-legacy
+Supported features: charge thresholds, recalibration
+Driver usage:
+* tp-smapi (tp_smapi) = active (status, charge thresholds, recalibration)
+$ sudo tlp-stat -b -- NATACPI_ENABLE=0 | head -7 | tail -4
+Plugin: thinkpad-legacy
+Supported features: charge thresholds, recalibration
+Driver usage:
+* tp-smapi (tp_smapi) = active (status, charge thresholds, recalibration)
+$ sudo tlp-stat -b -- NATACPI_ENABLE=0 TPACPI_ENABLE=0 | head -7 | tail -4
+Plugin: thinkpad-legacy
+Supported features: charge thresholds, recalibration
+Driver usage:
+* tp-smapi (tp_smapi) = active (status, charge thresholds, recalibration)
+$ sudo ./kmod-helper tp_smapi disable
+$ sudo tlp-stat -b | head -7 | tail -4
+Plugin: thinkpad-legacy
+Supported features: none available
+Driver usage:
+* tp-smapi (tp_smapi) = inactive (kernel module 'tp_smapi' load error)
+$ sudo ./kmod-helper tp_smapi enable
+$ sudo ./kmod-helper tp_smapi remove
+$ sudo tlp-stat -b | head -7 | tail -4
+Plugin: thinkpad-legacy
+Supported features: none available
+Driver usage:
+* tp-smapi (tp_smapi) = inactive (kernel module 'tp_smapi' not installed)
+$ sudo ./kmod-helper tp_smapi restore

unit-tests/kmod-helper

@@ -0,0 +1,59 @@
+#!/bin/sh
+# Kernel module helper for battery care testing: disable/remove DKMS modules
+# $1: module name
+# $2: disable/enable/remove/restore
+
+# Constants
+KILLFILE=/etc/modprobe.d/kmod-helper.conf
+
+# Functions
+unload_kmod () { # $1: module name
+    modprobe -r "$1"
+}
+
+# MAIN
+
+if [ "$1" != "acpi_call" ] &&  [ "$1" != "tp_smapi" ]; then
+    echo "Error: unknown kernel module \"$1\"." 1>&2
+    exit 1
+fi
+
+kernel=$(uname -r)
+module=$1
+modfile="/lib/modules/${kernel}/updates/dkms/${module}.ko"
+modsave="${modfile}-save"
+
+case "$2" in
+    disable)
+        unload_kmod "$module"
+        echo "install ${module} killmod" > $KILLFILE
+        ;;
+
+    enable)
+        rm -f "$KILLFILE"
+        ;;
+
+    remove)
+        unload_kmod "$module"
+        if [ -f "$modfile" ]; then
+            mv "$modfile" "$modsave"
+        else
+            exit 2
+        fi
+        ;;
+
+    restore)
+        if [ -f "$modsave" ]; then
+            mv "$modsave" "$modfile"
+        else
+            exit 2
+        fi
+        ;;
+
+    *)
+        echo "Error: unknown action \"$2\"." 1>&2
+        exit 1
+        ;;
+esac
+
+exit 0