Add test/test-all.sh

Checks that all the .wgsl test files actually compile with tint

Change-Id: Iea31f0f58fe0580fca55b07cf3b3ffc24cebcf9d
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/44870
Commit-Queue: Ben Clayton <bclayton@google.com>
Reviewed-by: David Neto <dneto@google.com>
Reviewed-by: Ryan Harrison <rharrison@chromium.org>

test/test-all.sh

@@ -0,0 +1,74 @@
+#!/bin/bash
+
+# Copyright 2021 The Tint Authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+set -e # Fail on any error.
+
+TEXT_GREEN="\033[0;32m"
+TEXT_RED="\033[0;31m"
+TEXT_DEFAULT="\033[0m"
+
+TINT=$1
+
+if [ ! -x "$TINT" ]; then
+    echo "test-all.sh compiles with tint all the .wgsl files in the tint/test"
+    echo "directory, for each of the SPIR-V, MSL, HLSL and WGSL backends."
+    echo "Any errors are reported as test failures."
+    echo ""
+    echo "Usage: test-all.sh <path-to-tint-executable>"
+    exit 1
+fi
+
+SCRIPT_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}")" >/dev/null 2>&1 && pwd )"
+NUM_PASS=0
+NUM_FAIL=0
+
+# check(WGSL_FILE, FORMAT)
+function check() {
+    WGSL_FILE=$1
+    FORMAT=$2
+    printf "%7s: " "${FORMAT}"
+    set +e
+    ${TINT} ${WGSL_FILE} --format ${FORMAT} -o /dev/null
+    if [ $? -eq 0 ]; then
+        echo -e "${TEXT_GREEN}PASS${TEXT_DEFAULT}"
+        NUM_PASS=$((${NUM_PASS}+1))
+    else
+        echo -e "${TEXT_RED}FAIL${TEXT_DEFAULT}"
+        NUM_FAIL=$((${NUM_FAIL}+1))
+    fi
+    set -e
+}
+
+for WGSL_FILE in ${SCRIPT_DIR}/*.wgsl
+do
+    echo
+    echo "Testing $WGSL_FILE..."
+    check "${WGSL_FILE}" wgsl
+    check "${WGSL_FILE}" spirv
+    check "${WGSL_FILE}" msl
+    check "${WGSL_FILE}" hlsl
+done
+
+if [ ${NUM_FAIL} -ne 0 ]; then
+    echo
+    echo -e "${TEXT_RED}${NUM_FAIL} tests failed. ${TEXT_DEFAULT}${NUM_PASS} passed${TEXT_DEFAULT}"
+    echo
+    exit 1
+else
+    echo
+    echo -e "${TEXT_GREEN}All ${NUM_PASS} tests pass${TEXT_DEFAULT}"
+    echo
+fi