diff --git a/contrib/source-control-tools/CMakeLists.txt b/contrib/source-control-tools/CMakeLists.txt
--- a/contrib/source-control-tools/CMakeLists.txt
+++ b/contrib/source-control-tools/CMakeLists.txt
@@ -7,8 +7,9 @@
 
 set(SOURCE_CONTROL_TOOLS_TESTS
   test/test-autopatch.sh
-  test/test-sanitize-conduit-token.sh
   test/test-check-revision-accepted.sh
+  test/test-land-patch.sh
+  test/test-sanitize-conduit-token.sh
 )
 
 foreach(TEST ${SOURCE_CONTROL_TOOLS_TESTS})
diff --git a/contrib/source-control-tools/land-patch.sh b/contrib/source-control-tools/land-patch.sh
--- a/contrib/source-control-tools/land-patch.sh
+++ b/contrib/source-control-tools/land-patch.sh
@@ -18,15 +18,21 @@
 Options:
   -d, --dry-run           Dry run. Does everything but actually landing the change.
   -h, --help              Display this help message.
+
+Environment Variables (for testing):
+  SANITY_CHECKS_COMMAND   The command to override sanity checks (smoke tests).
+  GIT_COMMAND             The command to override 'git' calls.
 EOF
 }
 
+DRY_RUN=no
 GIT_ARGS=()
 
 # Parse command line arguments
 while [[ $# -gt 0 ]]; do
 case $1 in
   -d|--dry-run)
+    DRY_RUN=yes
     GIT_ARGS+=("--dry-run")
     shift # shift past argument
     ;;
@@ -42,7 +48,7 @@
 esac
 done
 
-if [[ "$(git rev-parse --abbrev-ref HEAD)" != "master" ]]; then
+if [[ ${DRY_RUN} == "no" ]] && [[ "$(git rev-parse --abbrev-ref HEAD)" != "master" ]]; then
   echo "Error: This script assumes the commit to land is on master"
   exit 10
 fi
@@ -50,7 +56,9 @@
 TOPLEVEL=$(git rev-parse --show-toplevel)
 
 # Sanity checks
-"${TOPLEVEL}"/contrib/devtools/smoke-tests.sh
+: "${SANITY_CHECKS_COMMAND:=${TOPLEVEL}/contrib/devtools/smoke-tests.sh}"
+${SANITY_CHECKS_COMMAND}
 
 # Push the change. Phabricator will automatically close the associated revision.
-git push "${GIT_ARGS[@]}" origin master
+: "${GIT_COMMAND:=git}"
+${GIT_COMMAND} push "${GIT_ARGS[@]}" origin master
diff --git a/contrib/source-control-tools/test/test-land-patch.sh b/contrib/source-control-tools/test/test-land-patch.sh
new file mode 100755
--- /dev/null
+++ b/contrib/source-control-tools/test/test-land-patch.sh
@@ -0,0 +1,39 @@
+#!/usr/bin/env bash
+# Copyright (c) 2020 The Bitcoin developers
+# Distributed under the MIT software license, see the accompanying
+# file COPYING or http://www.opensource.org/licenses/mit-license.php.
+
+export LC_ALL=C.UTF-8
+
+set -euxo pipefail
+
+TOPLEVEL=$(git rev-parse --show-toplevel)
+SOURCE_CONTROL_TOOLS="${TOPLEVEL}"/contrib/source-control-tools
+
+mock_smoke_tests() {
+  echo 'Mock smoke tests passed'
+}
+export -f mock_smoke_tests
+export SANITY_CHECKS_COMMAND=mock_smoke_tests
+
+# Successful git push works as expected
+mock_git_push_success() {
+  echo 'Mock git push succeeded'
+}
+export -f mock_git_push_success
+GIT_COMMAND=mock_git_push_success "${SOURCE_CONTROL_TOOLS}"/land-patch.sh --dry-run
+
+# Unsuccessful git push fails to land
+mock_git_push_fail() {
+  echo 'Mock git push failed'
+  exit 1
+}
+export -f mock_git_push_fail
+
+# shellcheck disable=SC2015
+GIT_COMMAND=mock_git_push_fail "${SOURCE_CONTROL_TOOLS}"/land-patch.sh --dry-run && {
+  echo "Error: A git push failure is expected to fail"
+  exit 1
+} || true
+
+echo "PASSED"