1 files changed, 44 insertions, 0 deletions

diff --git a/tools/perf/tests/thread-map.c b/tools/perf/tests/thread-map.c
index cee2a2cdc933..a4a4b4625ac3 100644
--- a/tools/perf/tests/thread-map.c
+++ b/tools/perf/tests/thread-map.c
@@ -1,3 +1,4 @@
+#include <stdlib.h>
 #include <sys/types.h>
 #include <unistd.h>
 #include <sys/prctl.h>
@@ -93,3 +94,46 @@ int test__thread_map_synthesize(int subtest __maybe_unused)
 
         return 0;
 }
+
+int test__thread_map_remove(int subtest __maybe_unused)
+{
+        struct thread_map *threads;
+        char *str;
+        int i;
+
+        TEST_ASSERT_VAL("failed to allocate map string",
+                        asprintf(&str, "%d,%d", getpid(), getppid()) >= 0);
+
+        threads = thread_map__new_str(str, NULL, 0);
+
+        TEST_ASSERT_VAL("failed to allocate thread_map",
+                        threads);
+
+        if (verbose)
+                thread_map__fprintf(threads, stderr);
+
+        TEST_ASSERT_VAL("failed to remove thread",
+                        !thread_map__remove(threads, 0));
+
+        TEST_ASSERT_VAL("thread_map count != 1", threads->nr == 1);
+
+        if (verbose)
+                thread_map__fprintf(threads, stderr);
+
+        TEST_ASSERT_VAL("failed to remove thread",
+                        !thread_map__remove(threads, 0));
+
+        TEST_ASSERT_VAL("thread_map count != 0", threads->nr == 0);
+
+        if (verbose)
+                thread_map__fprintf(threads, stderr);
+
+        TEST_ASSERT_VAL("failed to not remove thread",
+                        thread_map__remove(threads, 0));
+
+        for (i = 0; i < threads->nr; i++)
+                free(threads->map[i].comm);
+
+        free(threads);
+        return 0;
+}