diff --git a/test cases/common/81 file object/lib.c b/test cases/common/81 file object/lib.c
new file mode 100644
index 000000000..6f1c172d6
--- /dev/null
+++ b/test cases/common/81 file object/lib.c	
@@ -0,0 +1,3 @@
+int func() {
+    return 0;
+}
diff --git a/test cases/common/81 file object/meson.build b/test cases/common/81 file object/meson.build
index f993a162e..152901cb7 100644
--- a/test cases/common/81 file object/meson.build	
+++ b/test cases/common/81 file object/meson.build	
@@ -1,4 +1,9 @@
 project('file object', 'c')
 
-fileobj = file('prog.c')
-test('fobj', executable('fobj', fileobj))
+prog0 = file('prog.c')
+lib0 = file('lib.c')
+test('fobj', executable('fobj', prog0, lib0))
+
+subdir('subdir1')
+subdir('subdir2')
+
diff --git a/test cases/common/81 file object/prog.c b/test cases/common/81 file object/prog.c
index 27ade3a5f..884d678c5 100644
--- a/test cases/common/81 file object/prog.c	
+++ b/test cases/common/81 file object/prog.c	
@@ -1,6 +1,13 @@
 #include<stdio.h>
 
+int func(); /* Files in different subdirs return different values. */
+
 int main(int argc, char **argv) {
-    printf("Iz success.\n");
+    if(func() == 0) {
+        printf("Iz success.\n");
+    } else {
+        printf("Iz fail.\n");
+        return 1;
+    }
     return 0;
 }
diff --git a/test cases/common/81 file object/subdir1/lib.c b/test cases/common/81 file object/subdir1/lib.c
new file mode 100644
index 000000000..bc1e7b0a1
--- /dev/null
+++ b/test cases/common/81 file object/subdir1/lib.c	
@@ -0,0 +1,3 @@
+int func() {
+    return 1;
+}
diff --git a/test cases/common/81 file object/subdir1/meson.build b/test cases/common/81 file object/subdir1/meson.build
new file mode 100644
index 000000000..e41a82426
--- /dev/null
+++ b/test cases/common/81 file object/subdir1/meson.build	
@@ -0,0 +1,7 @@
+prog1 = file('prog.c')
+lib1 = file('lib.c')
+
+test('subdir0', executable('subdir0', prog0, lib1), should_fail : true)
+test('subdir1', executable('subdir1', prog1, lib0), should_fail : true)
+
+test('subdir2', executable('subdir2', prog1, lib1))
\ No newline at end of file
diff --git a/test cases/common/81 file object/subdir1/prog.c b/test cases/common/81 file object/subdir1/prog.c
new file mode 100644
index 000000000..37ccf7294
--- /dev/null
+++ b/test cases/common/81 file object/subdir1/prog.c	
@@ -0,0 +1,13 @@
+#include<stdio.h>
+
+int func();
+
+int main(int argc, char **argv) {
+    if(func() == 1) {
+        printf("Iz success.\n");
+    } else {
+        printf("Iz fail.\n");
+        return 1;
+    }
+    return 0;
+}
diff --git a/test cases/common/81 file object/subdir2/lib.c b/test cases/common/81 file object/subdir2/lib.c
new file mode 100644
index 000000000..cfef4d074
--- /dev/null
+++ b/test cases/common/81 file object/subdir2/lib.c	
@@ -0,0 +1,3 @@
+int func() {
+    return 2;
+}
diff --git a/test cases/common/81 file object/subdir2/meson.build b/test cases/common/81 file object/subdir2/meson.build
new file mode 100644
index 000000000..06f0e4911
--- /dev/null
+++ b/test cases/common/81 file object/subdir2/meson.build	
@@ -0,0 +1,7 @@
+prog2 = file('prog.c')
+lib2 = file('lib.c')
+
+test('subdir3', executable('subdir3', prog1, lib2), should_fail : true)
+test('subdir4', executable('subdir4', prog2, lib1), should_fail : true)
+
+test('subdir4', executable('subdir5', prog2, lib2))
\ No newline at end of file
diff --git a/test cases/common/81 file object/subdir2/prog.c b/test cases/common/81 file object/subdir2/prog.c
new file mode 100644
index 000000000..3a90b0a93
--- /dev/null
+++ b/test cases/common/81 file object/subdir2/prog.c	
@@ -0,0 +1,13 @@
+#include<stdio.h>
+
+int func();
+
+int main(int argc, char **argv) {
+    if(func() == 2) {
+        printf("Iz success.\n");
+    } else {
+        printf("Iz fail.\n");
+        return 1;
+    }
+    return 0;
+}