Mock `which sh` to reutrn `/bin/sh`.

Check for `/bin/sh` library

Signed-off-by: Dan Schaper <dan.schaper@pi-hole.net>

test/test_any_automated_install.py

@@ -675,17 +675,10 @@ def test_FTL_detect_aarch64_no_errors(host):
     '''
     # mock uname to return aarch64 platform
     mock_command('uname', {'-m': ('aarch64', '0')}, host)
+    # mock `which sh` to return `/bin/sh`
+    mock_command('which', {'sh': ('/bin/sh', '0')}, host)
     # mock ldd to respond with aarch64 shared library
-    mock_command(
-        'ldd',
-        {
-            '/bin/bash': (
-                '/lib/ld-linux-aarch64.so.1',
-                '0'
-            )
-        },
-        host
-    )
+    mock_command('ldd', {'/bin/sh': ('/lib/ld-linux-aarch64.so.1', '0')}, host)
     detectPlatform = host.run('''
     source /opt/pihole/basic-install.sh
     create_pihole_user
@@ -708,8 +701,10 @@ def test_FTL_detect_armv4t_no_errors(host):
     '''
     # mock uname to return armv4t platform
     mock_command('uname', {'-m': ('armv4t', '0')}, host)
-    # mock ldd to respond with ld-linux shared library
-    mock_command('ldd', {'/bin/bash': ('/lib/ld-linux.so.3', '0')}, host)
+    # mock `which sh` to return `/bin/sh`
+    mock_command('which', {'sh': ('/bin/sh', '0')}, host)
+    # mock ldd to respond with armv4t shared library
+    mock_command('ldd', {'/bin/sh': ('/lib/ld-linux.so.3', '0')}, host)
     detectPlatform = host.run('''
     source /opt/pihole/basic-install.sh
     create_pihole_user
@@ -732,8 +727,10 @@ def test_FTL_detect_armv5te_no_errors(host):
     '''
     # mock uname to return armv5te platform
     mock_command('uname', {'-m': ('armv5te', '0')}, host)
+    # mock `which sh` to return `/bin/sh`
+    mock_command('which', {'sh': ('/bin/sh', '0')}, host)
     # mock ldd to respond with ld-linux shared library
-    mock_command('ldd', {'/bin/bash': ('/lib/ld-linux.so.3', '0')}, host)
+    mock_command('ldd', {'/bin/sh': ('/lib/ld-linux.so.3', '0')}, host)
     detectPlatform = host.run('''
     source /opt/pihole/basic-install.sh
     create_pihole_user
@@ -757,7 +754,9 @@ def test_FTL_detect_armv6l_no_errors(host):
     # mock uname to return armv6l platform
     mock_command('uname', {'-m': ('armv6l', '0')}, host)
     # mock ldd to respond with ld-linux-armhf shared library
-    mock_command('ldd', {'/bin/bash': ('/lib/ld-linux-armhf.so.3', '0')}, host)
+    # mock `which sh` to return `/bin/sh`
+    mock_command('which', {'sh': ('/bin/sh', '0')}, host)
+    mock_command('ldd', {'/bin/sh': ('/lib/ld-linux-armhf.so.3', '0')}, host)
     detectPlatform = host.run('''
     source /opt/pihole/basic-install.sh
     create_pihole_user
@@ -782,7 +781,9 @@ def test_FTL_detect_armv7l_no_errors(host):
     # mock uname to return armv7l platform
     mock_command('uname', {'-m': ('armv7l', '0')}, host)
     # mock ldd to respond with ld-linux-armhf shared library
-    mock_command('ldd', {'/bin/bash': ('/lib/ld-linux-armhf.so.3', '0')}, host)
+    # mock `which sh` to return `/bin/sh`
+    mock_command('which', {'sh': ('/bin/sh', '0')}, host)
+    mock_command('ldd', {'/bin/sh': ('/lib/ld-linux-armhf.so.3', '0')}, host)
     detectPlatform = host.run('''
     source /opt/pihole/basic-install.sh
     create_pihole_user
@@ -806,8 +807,10 @@ def test_FTL_detect_armv8a_no_errors(host):
     '''
     # mock uname to return armv8a platform
     mock_command('uname', {'-m': ('armv8a', '0')}, host)
+    # mock `which sh` to return `/bin/sh`
+    mock_command('which', {'sh': ('/bin/sh', '0')}, host)
     # mock ldd to respond with ld-linux-armhf shared library
-    mock_command('ldd', {'/bin/bash': ('/lib/ld-linux-armhf.so.3', '0')}, host)
+    mock_command('ldd', {'/bin/sh': ('/lib/ld-linux-armhf.so.3', '0')}, host)
     detectPlatform = host.run('''
     source /opt/pihole/basic-install.sh
     create_pihole_user
@@ -828,6 +831,8 @@ def test_FTL_detect_x86_64_no_errors(host):
     '''
     confirms only x86_64 package is downloaded for FTL engine
     '''
+    # mock `which sh` to return `/bin/sh`
+    mock_command('which', {'sh': ('/bin/sh', '0')}, host)
     detectPlatform = host.run('''
     source /opt/pihole/basic-install.sh
     create_pihole_user
@@ -848,6 +853,8 @@ def test_FTL_detect_unknown_no_errors(host):
     ''' confirms only generic package is downloaded for FTL engine '''
     # mock uname to return generic platform
     mock_command('uname', {'-m': ('mips', '0')}, host)
+    # mock `which sh` to return `/bin/sh`
+    mock_command('which', {'sh': ('/bin/sh', '0')}, host)
     detectPlatform = host.run('''
     source /opt/pihole/basic-install.sh
     create_pihole_user