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commit 97802bd9e0ae57ec18a74e777a58f2eb143c4aa7 Author: cuiziwei <[email protected]> AuthorDate: Tue Apr 28 17:29:12 2026 +0800 testing/libc/popen: add popen/dpopen test for shell and no-shell modes Add tests for popen()/pclose() and dpopen()/dpclose() that work in both shell (NSH) and no-shell (direct posix_spawnp) modes. The test binary doubles as its own target via the --echo sub-command. Tests: 1-4: popen - basic read, multi-arg, pclose, invalid mode 5-7: dpopen - basic read, multi-arg, dpclose Signed-off-by: cuiziwei <[email protected]> --- testing/libc/popen/CMakeLists.txt | 33 +++++ testing/libc/popen/Kconfig | 16 +++ testing/libc/popen/Make.defs | 25 ++++ testing/libc/popen/Makefile | 32 +++++ testing/libc/popen/popen_test.c | 250 ++++++++++++++++++++++++++++++++++++++ 5 files changed, 356 insertions(+) diff --git a/testing/libc/popen/CMakeLists.txt b/testing/libc/popen/CMakeLists.txt new file mode 100644 index 000000000..867a56891 --- /dev/null +++ b/testing/libc/popen/CMakeLists.txt @@ -0,0 +1,33 @@ +# ############################################################################## +# apps/testing/libc/popen/CMakeLists.txt +# +# SPDX-License-Identifier: Apache-2.0 +# +# Licensed to the Apache Software Foundation (ASF) under one or more contributor +# license agreements. See the NOTICE file distributed with this work for +# additional information regarding copyright ownership. The ASF licenses this +# file to you 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. +# +# ############################################################################## + +if(CONFIG_TESTING_POPEN) + nuttx_add_application( + NAME + popen_test + STACKSIZE + ${CONFIG_DEFAULT_TASK_STACKSIZE} + MODULE + ${CONFIG_TESTING_POPEN} + SRCS + popen_test.c) +endif() diff --git a/testing/libc/popen/Kconfig b/testing/libc/popen/Kconfig new file mode 100644 index 000000000..73d4beb36 --- /dev/null +++ b/testing/libc/popen/Kconfig @@ -0,0 +1,16 @@ +# +# For a description of the syntax of this configuration file, +# see the file kconfig-language.txt in the NuttX tools repository. +# + +config TESTING_POPEN + tristate "popen()/dpopen() test" + default n + depends on SYSTEM_POPEN + ---help--- + Test popen()/pclose() and dpopen()/dpclose() in both shell + and no-shell modes. The test binary doubles as its own + popen/dpopen target via --echo. + +if TESTING_POPEN +endif diff --git a/testing/libc/popen/Make.defs b/testing/libc/popen/Make.defs new file mode 100644 index 000000000..eac91c500 --- /dev/null +++ b/testing/libc/popen/Make.defs @@ -0,0 +1,25 @@ +############################################################################ +# apps/testing/libc/popen/Make.defs +# +# SPDX-License-Identifier: Apache-2.0 +# +# Licensed to the Apache Software Foundation (ASF) under one or more +# contributor license agreements. See the NOTICE file distributed with +# this work for additional information regarding copyright ownership. The +# ASF licenses this file to you under the Apache License, Version 2.0 (the +# "License"); you may not use this file except in compliance with the +# License. You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT +# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the +# License for the specific language governing permissions and limitations +# under the License. +# +############################################################################ + +ifneq ($(CONFIG_TESTING_POPEN),) +CONFIGURED_APPS += $(APPDIR)/testing/libc/popen +endif diff --git a/testing/libc/popen/Makefile b/testing/libc/popen/Makefile new file mode 100644 index 000000000..1ef31c7ab --- /dev/null +++ b/testing/libc/popen/Makefile @@ -0,0 +1,32 @@ +############################################################################ +# apps/testing/libc/popen/Makefile +# +# SPDX-License-Identifier: Apache-2.0 +# +# Licensed to the Apache Software Foundation (ASF) under one or more +# contributor license agreements. See the NOTICE file distributed with +# this work for additional information regarding copyright ownership. The +# ASF licenses this file to you 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. +# +############################################################################ + +include $(APPDIR)/Make.defs + +PROGNAME = popen_test +PRIORITY = SCHED_PRIORITY_DEFAULT +STACKSIZE = $(CONFIG_DEFAULT_TASK_STACKSIZE) +MODULE = $(CONFIG_TESTING_POPEN) + +MAINSRC = popen_test.c + +include $(APPDIR)/Application.mk diff --git a/testing/libc/popen/popen_test.c b/testing/libc/popen/popen_test.c new file mode 100644 index 000000000..bbe3a7e59 --- /dev/null +++ b/testing/libc/popen/popen_test.c @@ -0,0 +1,250 @@ +/**************************************************************************** + * apps/testing/libc/popen/popen_test.c + * + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed with + * this work for additional information regarding copyright ownership. The + * ASF licenses this file to you 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. + * + ****************************************************************************/ + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include <nuttx/config.h> +#include <stdio.h> +#include <string.h> +#include <unistd.h> +#include <fcntl.h> + +/**************************************************************************** + * Private Functions + ****************************************************************************/ + +static int test_popen_read(void) +{ + FILE *fp; + char buf[256]; + int found = 0; + + printf("[TEST 1] popen read...\n"); + fp = popen("popen_test --echo hello_popen", "r"); + if (fp == NULL) + { + printf("[FAIL] popen returned NULL\n"); + return 1; + } + + while (fgets(buf, sizeof(buf), fp) != NULL) + { + printf(" > %s", buf); + if (strstr(buf, "hello_popen")) + { + found = 1; + } + } + + pclose(fp); + printf("%s\n", found ? "[PASS]" : "[FAIL] missing output"); + return !found; +} + +static int test_popen_multiarg(void) +{ + FILE *fp; + char buf[256]; + int found = 0; + + printf("[TEST 2] popen multi-arg...\n"); + fp = popen("popen_test --echo aaa bbb ccc", "r"); + if (fp == NULL) + { + printf("[FAIL] popen returned NULL\n"); + return 1; + } + + while (fgets(buf, sizeof(buf), fp) != NULL) + { + printf(" > %s", buf); + if (strstr(buf, "aaa bbb ccc")) + { + found = 1; + } + } + + pclose(fp); + printf("%s\n", found ? "[PASS]" : "[FAIL] wrong output"); + return !found; +} + +static int test_pclose_complete(void) +{ + FILE *fp; + char buf[256]; + + printf("[TEST 3] pclose completes...\n"); + fp = popen("popen_test --echo ok", "r"); + if (fp == NULL) + { + printf("[FAIL] popen returned NULL\n"); + return 1; + } + + while (fgets(buf, sizeof(buf), fp) != NULL); + pclose(fp); + printf("[PASS]\n"); + return 0; +} + +static int test_popen_invalid_mode(void) +{ + FILE *fp; + + printf("[TEST 4] popen invalid mode...\n"); + fp = popen("popen_test", "x"); + if (fp == NULL) + { + printf("[PASS]\n"); + return 0; + } + + pclose(fp); + printf("[FAIL] should return NULL\n"); + return 1; +} + +static int test_dpopen_read(void) +{ + char buf[256]; + ssize_t n; + pid_t pid; + int found = 0; + int fd; + + printf("[TEST 5] dpopen read...\n"); + fd = dpopen("popen_test --echo hello_dpopen", O_RDONLY, &pid); + if (fd < 0) + { + printf("[FAIL] dpopen returned %d\n", fd); + return 1; + } + + while ((n = read(fd, buf, sizeof(buf) - 1)) > 0) + { + buf[n] = '\0'; + printf(" > %s", buf); + if (strstr(buf, "hello_dpopen")) + { + found = 1; + } + } + + dpclose(fd, pid); + printf("%s\n", found ? "[PASS]" : "[FAIL] missing output"); + return !found; +} + +static int test_dpopen_multiarg(void) +{ + char buf[256]; + ssize_t n; + pid_t pid; + int found = 0; + int fd; + + printf("[TEST 6] dpopen multi-arg...\n"); + fd = dpopen("popen_test --echo xxx yyy zzz", O_RDONLY, &pid); + if (fd < 0) + { + printf("[FAIL] dpopen returned %d\n", fd); + return 1; + } + + while ((n = read(fd, buf, sizeof(buf) - 1)) > 0) + { + buf[n] = '\0'; + printf(" > %s", buf); + if (strstr(buf, "xxx yyy zzz")) + { + found = 1; + } + } + + dpclose(fd, pid); + printf("%s\n", found ? "[PASS]" : "[FAIL] wrong output"); + return !found; +} + +static int test_dpclose_complete(void) +{ + char buf[256]; + pid_t pid; + int fd; + + printf("[TEST 7] dpclose completes...\n"); + fd = dpopen("popen_test --echo ok", O_RDONLY, &pid); + if (fd < 0) + { + printf("[FAIL] dpopen returned %d\n", fd); + return 1; + } + + while (read(fd, buf, sizeof(buf)) > 0); + dpclose(fd, pid); + printf("[PASS]\n"); + return 0; +} + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +int main(int argc, FAR char *argv[]) +{ + int fail = 0; + + /* Sub-command: echo args back, used as popen/dpopen target */ + + if (argc > 1 && strcmp(argv[1], "--echo") == 0) + { + int i; + for (i = 2; i < argc; i++) + { + printf("%s%s", i > 2 ? " " : "", argv[i]); + } + + printf("\n"); + return 0; + } + + printf("=== popen/dpopen test ===\n\n"); + + /* popen tests */ + + fail += test_popen_read(); + fail += test_popen_multiarg(); + fail += test_pclose_complete(); + fail += test_popen_invalid_mode(); + + /* dpopen tests */ + + fail += test_dpopen_read(); + fail += test_dpopen_multiarg(); + fail += test_dpclose_complete(); + + printf("\n=== Results: %d failed ===\n", fail); + return fail; +}
