Add unit test suites (#3490)

tests/unit/running-modes/wasm-apps/CMakeLists.txt

@@ -0,0 +1,49 @@
+# Copyright (C) 2019 Intel Corporation.  All rights reserved.
+# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+
+cmake_minimum_required(VERSION 3.14)
+project(wasm-apps)
+
+set(WAMR_ROOT_DIR ${CMAKE_CURRENT_SOURCE_DIR}/../../../..)
+
+set(CMAKE_SYSTEM_PROCESSOR wasm32)
+set(CMAKE_SYSROOT ${WAMR_ROOT_DIR}/wamr-sdk/app/libc-builtin-sysroot)
+
+if (NOT DEFINED WASI_SDK_DIR)
+    set(WASI_SDK_DIR "/opt/wasi-sdk")
+endif ()
+
+set(CMAKE_C_FLAGS "-nostdlib -pthread -Qunused-arguments")
+set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -z stack-size=8192 -nostdlib")
+set(CMAKE_C_COMPILER_TARGET "wasm32")
+set(CMAKE_C_COMPILER "${WASI_SDK_DIR}/bin/clang")
+
+set(DEFINED_SYMBOLS
+        "${WAMR_ROOT_DIR}/wamr-sdk/app/libc-builtin-sysroot/share/defined-symbols.txt")
+
+set(CMAKE_EXE_LINKER_FLAGS
+        "-Wl,--no-entry           \
+      -Wl,--initial-memory=65536  \
+      -Wl,--export-all            \
+      -Wl,--allow-undefined"
+        )
+
+add_executable(mytest.wasm mytest.c)
+target_link_libraries(mytest.wasm)
+
+add_executable(hello.wasm hello.c)
+target_link_libraries(hello.wasm)
+
+add_custom_command(TARGET hello.wasm POST_BUILD
+        COMMAND ${CMAKE_COMMAND} -E copy
+        ${CMAKE_CURRENT_BINARY_DIR}/hello.wasm
+        ${CMAKE_CURRENT_BINARY_DIR}/../
+        COMMENT "Copy hello.wasm to the same directory of google test"
+        )
+
+add_custom_command(TARGET mytest.wasm POST_BUILD
+        COMMAND ${CMAKE_COMMAND} -E copy
+        ${CMAKE_CURRENT_BINARY_DIR}/mytest.wasm
+        ${CMAKE_CURRENT_BINARY_DIR}/../
+        COMMENT "Copy mytest.wasm to the same directory of google test"
+        )

tests/unit/running-modes/wasm-apps/hello.c

@@ -0,0 +1,31 @@
+/*
+ * Copyright (C) 2019 Intel Corporation. All rights reserved.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+ */
+
+double
+foo(double d)
+{
+    return d / 3.0;
+}
+
+double
+maybe_min(double d, double e)
+{
+    return d < e ? d : e;
+}
+
+double
+factor(double a, double b, double c)
+{
+    return (a * c) + (b * c);
+}
+
+int
+echo(int a)
+{
+    double b = foo(14.5);
+    double c = maybe_min(12.2, 15.4);
+    double d = factor(a, b, c);
+    return 2 * a;
+}

tests/unit/running-modes/wasm-apps/mytest.c

@@ -0,0 +1,53 @@
+/*
+ * Copyright (C) 2019 Intel Corporation. All rights reserved.
+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+
+int
+recursive(int a)
+{
+    if (a > 0) {
+        return recursive(a - 1) + 1;
+    }
+    else
+        return 0;
+}
+
+int
+testFunction(int *input, int length)
+{
+    int sum = 0;
+    for (int i = 0; i < length; ++i) {
+        sum += input[i];
+    }
+    return sum;
+}
+
+int
+main(int argc, char **argv)
+{
+
+    int arr[5] = { 1, 2, 3, 4, 5 };
+    testFunction(arr, recursive(5));
+
+    char *buf;
+
+    printf("Hello world!\n");
+
+    buf = malloc(1024);
+    if (!buf) {
+        printf("malloc buf failed\n");
+        return -1;
+    }
+
+    printf("buf ptr: %p\n", buf);
+
+    snprintf(buf, 1024, "%s", "1234\n");
+    printf("buf: %s", buf);
+
+    free(buf);
+    return 0;
+}