commit 55436dd6b1ccf001ae79b6139dbf192ebe885ea8
author Ben Hamilton <benhamilton@google.com> Tue Jan 14 11:46:01 2025 -0700
committer Ben Hamilton <benhamilton@google.com> Tue Jan 14 11:46:01 2025 -0700
tree 0b64438e7fd7529e4cf50025e413eb92b14624a0
parent e7b11898f8d4c9337d014434508303b17db7ef59

[libprocinfo] Harden test to work even under ARM emulator

When running under an ARM emulator like qemu, the name of the binary
executing the test might not be "libprocinfo_test", but rather
something like "qemu-aarch64-...".

This hardens the test to not assume the name of the binary and instead
read it from /proc/self/exe.

Change-Id: Ia4564da87c4a8ebb5e512f995cf283327579eed4
Bug: b/307594847

process_test.cpp

diff --git a/process_test.cpp b/process_test.cpp
index a9d2f19..f0ddfe4 100644
--- a/process_test.cpp
+++ b/process_test.cpp
@@ -59,8 +59,10 @@
   ASSERT_NE(-1, fd);
   ASSERT_TRUE(android::procinfo::GetProcessInfoFromProcPidFd(fd, gettid(), &self));
 
+  std::string process_path = android::base::GetExecutablePath();
+  std::string process_name = android::base::Basename(process_path);
   // Process name is capped at 15 bytes.
-  ASSERT_EQ("libprocinfo_tes", self.name);
+  ASSERT_EQ(process_name.substr(0, 15), self.name);
   ASSERT_EQ(gettid(), self.tid);
   ASSERT_EQ(getpid(), self.pid);
   ASSERT_EQ(getppid(), self.ppid);