rtl-sdr: add test.sh

although rtl-sdr doesn't print version, test at least if compiled binary runs

Written-by: Josef Schlehofer <pepe.schlehofer@gmail.com>
Test-by: Josef Schlehofer <pepe.schlehofer@gmail.com>
Suggested-by: Josef Schlehofer <pepe.schlehofer@gmail.com>

Signed-off-by: Seo Suchan <tjtncks@gmail.com>

utils/rtl-sdr/test-version.sh

@@ -1,6 +1,6 @@
 #!/bin/sh
 
-# shellckeck shell=busybox
+# shellcheck shell=busybox
 
 case "$PKG_NAME" in
 rtl-sdr|librtlsdr)

utils/rtl-sdr/test.sh

@@ -0,0 +1,24 @@
+#!/bin/sh
+
+# shellcheck shell=busybox
+
+case "$1" in
+rtl-sdr)
+    rtl_sdr 2>&1 | grep -q "RTL2832"
+    rtl_tcp -h 2>&1 | grep -q "RTL2832"
+    rtl_test -h 2>&1 | grep -q "RTL2832"
+    rtl_fm -h 2>&1 | grep -q "RTL2832"
+    rtl_eeprom -h 2>&1 | grep -q "RTL2832"
+    rtl_adsb -h 2>&1 | grep -q "ADS-B"
+    rtl_power -h 2>&1 | grep -q "RTL2832"
+    ;;
+librtlsdr)
+    # Pure shared library, checked by packaging and linking tools
+    exit 0
+    ;;
+*)
+    echo "test.sh: unknown subpackage '$1' — refusing to silently pass" >&2
+    echo "test.sh: update utils/rtl-sdr/test.sh to cover this subpackage" >&2
+    exit 1
+    ;;
+esac