test: add tests for disabled optimization

Signed-off-by: Alessio Greggi <[email protected]>

tests/integration.txtar

@@ -1,7 +1,7 @@
 # this testscript test the 'analyze' command
 
 # skip if go is not installed
-[!exec:go] skip
+#[!exec:go] skip
 
 # move on the testcases directory
 cd testcases/example-app/
@@ -111,6 +111,7 @@ symbolsOrigins:
     - github.com/alegrey91/seccomp-test-coverage/pkg/randomic.ThrowDice
     - github.com/alegrey91/seccomp-test-coverage/pkg/randomic.FlipCoin
     - github.com/alegrey91/seccomp-test-coverage/pkg/randomic.DoSomethingSpecial
+    - github.com/alegrey91/seccomp-test-coverage/pkg/randomic.DoNothing
 
 -- testcases/example-app/expected-profile.json --
 {

tests/testcases/example-app/pkg/randomic/randomic.go

@@ -59,3 +59,14 @@ func DoForTenSec() {
 		time.Sleep(time.Second)
 	}
 }
+
+// DoNothing is an empty function,
+// made to test the compilation of test binaries
+// with optimization disabled: "all=-N -l"
+// This will make the compiler create the symbol
+// for the function, even if it's not needed.
+// This is needed since harpoon uses the symbols
+// to attach the uprobres and trace their syscalls.
+func DoNothing() bool {
+	return true
+}

tests/testcases/example-app/pkg/randomic/randomic_test.go

@@ -132,3 +132,22 @@ func TestDoSomethingSpecial(t *testing.T) {
 		})
 	}
 }
+
+func TestDoNothing(t *testing.T) {
+	tests := []struct {
+		name string
+		want bool
+	}{
+		{
+			name: "this test doesn't test anything",
+			want: true,
+		},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			if got := DoNothing(); got != tt.want {
+				t.Errorf("DoNothing() = %v, want %v", got, tt.want)
+			}
+		})
+	}
+}