Add tests/cli_test.sh for unit test cli command.

.github/workflows/test.yml

@@ -25,9 +25,7 @@ jobs:
           key: ${{ matrix.os }}-cargo-${{ hashFiles('**/Cargo.lock') }}
       - name: Build
         run: cargo build
-      - name: Tests
-        run: cargo test
-      - name: Test Cli
+      - name: Test
         run: make test
   lint:
     name: Lint

Makefile

@@ -1,7 +1,6 @@
 test:
 	cargo test
-	cargo run . tests/fixtures/pest.expected.pest
-	cat tests/fixtures/json.actual.pest | cargo run . --stdin
+	sh ./tests/cli_test.sh
 update_grammar:
 	curl -sSL https://github.com/pest-parser/pest/raw/master/meta/src/grammar.pest > src/grammar.pest
 	patch src/grammar.pest src/grammar.patch

tests/cli_test.sh

@@ -0,0 +1,55 @@
+echo 'Running tests for `pestfmt --stdin`...'
+
+RED='\033[0;31m'
+GREEN='\033[0;32m'
+NC="\033[0m"
+
+trim() {
+    sed -e 's/^[[:space:]]*//' -e 's/[[:space:]]*$//'
+}
+
+assert_format_stdin() {
+    local input=$1
+    local expected=$2
+
+    # If input is a file, read it
+    if [ -f "$input" ]; then
+        input=$(cat $input)
+    fi
+    if [ -f "$expected" ]; then
+        expected=$(cat $expected)
+    fi
+
+    # Perform pestfmt --stdin test
+    local acctual=$(cargo run . --stdin <<< "$input" | trim)
+    if [ "$acctual" != "$expected" ]; then
+        echo ""
+        echo "Test failed"
+        echo "---------------------------------------------------"
+        echo "${RED}Expected:${NC}\n\n$expected\n"
+        echo "${GREEN}Acctual:${NC}\n\n$acctual\n"
+        echo "---------------------------------------------------"
+        exit 1
+    fi
+}
+
+assert_format() {
+    local input=$1
+    local expected=$2
+    local acctual=$(cargo run . $input | trim)
+    if [ "$acctual" != "$expected" ]; then
+        echo ""
+        echo "Test failed"
+        echo "---------------------------------------------------"
+        echo "${RED}Expected:${NC}\n\n$expected\n"
+        echo "${GREEN}Acctual:${NC}\n\n$acctual\n"
+        echo "---------------------------------------------------"
+        exit 1
+    fi
+}
+
+assert_format_stdin 'item={"a"}' 'item = { "a2" }'
+assert_format_stdin "tests/fixtures/json.actual.pest" "tests/fixtures/json.expected.pest"
+assert_format "tests/fixtures/pest.expected.pest" "Formatted 0 files"
+
+echo 'All `--stdin` tests passed.'