diff --git a/.gitignore b/.gitignore
index fa6c4b6..b92b3e4 100644
--- a/.gitignore
+++ b/.gitignore
@@ -35,4 +35,5 @@
 /tests/test_multiboot2_helpers
 /tests/test_multiboot2_print
 /tests/test_multiboot2_validation
+/tests/test_pfa
 /tests/test_stdlib
diff --git a/Makefile.am b/Makefile.am
index d164b0b..7236424 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -8,6 +8,7 @@ TESTS = \
 	tests/test_multiboot2_helpers \
 	tests/test_multiboot2_print \
 	tests/test_multiboot2_validation \
+	tests/test_pfa \
 	tests/test_stdlib
 
 noinst_PROGRAMS = \
@@ -47,6 +48,10 @@ tests_test_multiboot2_validation_SOURCES = \
 	$(libkernaux_a_SOURCES) \
 	tests/test_multiboot2_validation.c
 
+tests_test_pfa_SOURCES = \
+	$(libkernaux_a_SOURCES) \
+	tests/test_pfa.c
+
 tests_test_stdlib_SOURCES = \
 	$(libkernaux_a_SOURCES) \
 	tests/test_stdlib.c
diff --git a/tests/test_pfa.c b/tests/test_pfa.c
new file mode 100644
index 0000000..83b305f
--- /dev/null
+++ b/tests/test_pfa.c
@@ -0,0 +1,35 @@
+#include <kernaux/pfa.h>
+
+#include <assert.h>
+
+int main()
+{
+    struct KernAux_PFA pfa;
+
+    assert(KernAux_PFA_initialize_start(&pfa));
+
+    assert(KernAux_PFA_initialize_add_zone(
+        &pfa,
+        "foo",
+        0,
+        16 * 1024 * 1024 - 1
+    ));
+
+    assert(KernAux_PFA_initialize_add_zone(
+        &pfa,
+        "bar",
+        16 * 1024 * 1024,
+        896 * 1024 * 1024 - 1
+    ));
+
+    assert(KernAux_PFA_initialize_add_zone(
+        &pfa,
+        "car",
+        896 * 1024 * 1024,
+        (unsigned long long)4 * 1024 * 1024 * 1024 - 1
+    ));
+
+    assert(KernAux_PFA_initialize_finish(&pfa));
+
+    return 0;
+}