fix(sh): use correct args for dotnet-install (automotiveMastermind#46)

* resolve an issue with the `--channel` argument in `dotnet-install`
* resolve an issue with the `--version` argument in `dotnet-install`
* add tests for `dotnet-install` and apply to macos build in circle-ci

Closes: automotiveMastermind#45

.circleci/config.yml

@@ -6,6 +6,9 @@ jobs:
       xcode: "11.2.1"
     steps:
       - checkout
+      - run:
+          name: test
+          command: ./test.sh
       - run:
           name: install-bash
           command: ./install.sh bash | tee log.txt && bash -lc "git sha"

src/sh/scripts/dotnet-install

@@ -72,11 +72,11 @@ __am_prompt_dotnet_install() {
     __am_prompt_safe_exec chmod +x "$DOTNET_INSTALL_SH"
 
     for DOTNET_VERSION in $DOTNET_VERSIONS; do
-        __am_prompt_safe_exec "$DOTNET_INSTALL_SH" __version $DOTNET_VERSION
+        __am_prompt_safe_exec "$DOTNET_INSTALL_SH" --version $DOTNET_VERSION
     done
 
     for DOTNET_CHANNEL in $DOTNET_CHANNELS; do
-        __am_prompt_safe_exec "$DOTNET_INSTALL_SH" __channel $DOTNET_CHANNEL
+        __am_prompt_safe_exec "$DOTNET_INSTALL_SH" --channel $DOTNET_CHANNEL
     done
 
     mkdir -p /usr/local/share 1>/dev/null 2>&1

test.sh

@@ -0,0 +1,6 @@
+#!/usr/bin/env sh
+
+set -eu
+
+# run the tests with a dummy terminal
+TERM=dumb find ./test/sh/scripts -name '*.test.sh' -exec {} \;

test/sh/scripts/dotnet-install.test.sh

@@ -0,0 +1,13 @@
+#!/usr/bin/env sh
+
+set -eu
+
+echo 'test default install'
+./src/sh/scripts/dotnet-install
+
+echo 'test channel install'
+./src/sh/scripts/dotnet-install --channel lts
+
+echo 'test version install'
+./src/sh/scripts/dotnet-install --version latest
+