From f9b0c70b2b4da6f0144934ac3c186b9cc95ab83b Mon Sep 17 00:00:00 2001
From: Owen Nelson <owen.nelson@thoughtworks.com>
Date: Wed, 24 Jan 2024 15:02:41 -0600
Subject: [PATCH] Test install script in pipeline

Authored-by: Owen Nelson <owen.nelson@thoughtworks.com>
---
 .github/workflows/test-and-coverage.yml |  8 ++-
 install.sh                              |  2 +-
 test-install.sh                         | 81 +++++++++++++++++++++++++
 3 files changed, 89 insertions(+), 2 deletions(-)
 create mode 100644 test-install.sh

diff --git a/.github/workflows/test-and-coverage.yml b/.github/workflows/test-and-coverage.yml
index f82776d..085cea2 100644
--- a/.github/workflows/test-and-coverage.yml
+++ b/.github/workflows/test-and-coverage.yml
@@ -1,4 +1,4 @@
-name: Build
+name: Test
 
 on:
   push:
@@ -27,3 +27,9 @@ jobs:
       # You may pin to the exact commit or the version.
       # uses: codecov/codecov-action@e156083f13aff6830c92fc5faa23505779fbf649
       uses: codecov/codecov-action@v1.2.1
+
+    - name: Install bash_unit
+      run: bash <(curl -s https://raw.githubusercontent.com/pgrange/bash_unit/master/install.sh)
+
+    - name: Test install script
+      run: ./bash_unit test-install.sh
diff --git a/install.sh b/install.sh
index dc1fb7b..76faa1e 100755
--- a/install.sh
+++ b/install.sh
@@ -80,7 +80,7 @@ function set_binary_name() {
 
 function download() {
   ASSETS=$(curl -Ls https://api.github.com/repos/"$INSTALL_ORG_REPO"/releases/latest |
-     grep download_url | awk '{print $2}' | tr -d '"')
+    grep download_url | awk '{print $2}' | tr -d '"')
   BINARY_URL=$(echo "$ASSETS" | grep "$BINARY_NAME")
   CHECKSUM_URL=$(echo "$ASSETS" | grep $CHECKSUM_FILE_NAME)
   echo_debug "Downloading $BINARY_NAME and from $BINARY_URL"
diff --git a/test-install.sh b/test-install.sh
new file mode 100644
index 0000000..322c423
--- /dev/null
+++ b/test-install.sh
@@ -0,0 +1,81 @@
+_linux_uname() {
+  if [ "${FAKE_PARAMS[0]}" = "-m" ]; then
+    echo "x86_64"
+  else
+    echo "Linux"
+  fi
+}
+export -f _linux_uname
+
+_windows_uname() {
+  if [ "${FAKE_PARAMS[0]}" = "-m" ]; then
+    echo "i686"
+  else
+    echo "MINGW64_NT-10.0-19045"
+  fi
+}
+export -f _windows_uname
+
+_mac_uname() {
+  if [ "${FAKE_PARAMS[0]}" = "-m" ]; then
+    echo "aarch64"
+  else
+    echo "Darwin"
+  fi
+}
+export -f _mac_uname
+
+setup() {
+  temp=$(mktemp -d)
+  fake uname _linux_uname
+  fake curl 'echo "download_url: talisman_linux_amd64checksums"'
+  fake shasum true
+  fake tput true
+}
+
+teardown() {
+  rm -rf "$temp"
+}
+
+test_installs_without_sudo() {
+  fake sudo 'echo "expected no sudo" && exit 1'
+  INSTALL_LOCATION=$temp ./install.sh
+  assert "test -x $temp/talisman_linux_amd64" "Should install file with executable mode"
+  assert_matches "$temp/talisman_linux_amd64" "$(readlink "$temp/talisman")" "Should create a link"
+}
+
+test_installs_with_sudo_if_available() {
+  fake touch 'echo "Permission denied" && exit 1'
+  fake which 'echo "sudo installed" && exit 0'
+  # shellcheck disable=SC2016
+  fake sudo 'bash -c "${FAKE_PARAMS[*]}"'
+  INSTALL_LOCATION=$temp ./install.sh
+  assert "test -x $temp/talisman_linux_amd64" "Should install file with executable mode"
+  assert_matches "$temp/talisman_linux_amd64" "$(readlink "$temp/talisman")" "Should create a link"
+}
+
+test_errors_if_unable_to_install() {
+  fake touch 'echo "Permission denied" && exit 1'
+  fake which 'echo "sudo not installed" && exit 1'
+  assert_status_code 126 "INSTALL_LOCATION=$temp ./install.sh"
+}
+
+test_errors_if_no_install_location() {
+  assert_status_code 1 "INSTALL_LOCATION=/does/not/exist ./install.sh"
+}
+
+test_mac_arm_binary_name() {
+  fake uname _mac_uname
+  fake curl 'echo "download_url: talisman_darwin_arm64checksums"'
+  INSTALL_LOCATION=$temp ./install.sh
+  assert "test -x $temp/talisman_darwin_arm64" "Should install file with executable mode"
+  assert_matches "$temp/talisman_darwin_arm64" "$(readlink "$temp/talisman")" "Should create a link"
+}
+
+test_windows_binary_name() {
+  fake uname _windows_uname
+  fake curl 'echo "download_url: talisman_windows_386.exechecksums"'
+  INSTALL_LOCATION=$temp ./install.sh
+  assert "test -x $temp/talisman_windows_386.exe" "Should install file with executable mode"
+  assert_matches "$temp/talisman_windows_386.exe" "$(readlink "$temp/talisman")" "Should create a link"
+}