cephfs: add unit test for ParseBlocklistEntries

Signed-off-by: Riya Singhal <[email protected]>

internal/csi-addons/networkfence/fencing_test.go

@@ -169,3 +169,54 @@ func TestFetchIPfromEntry(t *testing.T) {
 		})
 	}
 }
+
+func TestParseBlocklistEntries(t *testing.T) {
+	t.Parallel()
+
+	tests := []struct {
+		output       string
+		expected     []string
+		expectedSize int
+	}{
+		{
+			//nolint:lll
+			output: "listed 2 entries\n127.0.0.1:0/3710147553 2018-03-19 11:32:24.716146\n192.168.0.1:0/1234567890 2022-08-23 14:12:34.567890\n",
+			expected: []string{"127.0.0.1:0/3710147553 2018-03-19 11:32:24.716146",
+				"192.168.0.1:0/1234567890 2022-08-23 14:12:34.567890"},
+			expectedSize: 2,
+		},
+		{
+			output:       "listed 0 entries\n",
+			expected:     []string{},
+			expectedSize: 0,
+		},
+		{
+			output:       "listed 1 entries\n192.168.0.1:0/1234567890 2022-08-23 14:12:34.567890\n",
+			expected:     []string{"192.168.0.1:0/1234567890 2022-08-23 14:12:34.567890"},
+			expectedSize: 1,
+		},
+		{
+			output:       "",
+			expected:     []string{},
+			expectedSize: 0,
+		},
+	}
+
+	for _, tt := range tests {
+		ts := tt
+		t.Run(ts.output, func(t *testing.T) {
+			t.Parallel()
+			entries := parseBlocklistEntries(ts.output)
+
+			if len(entries) != ts.expectedSize {
+				t.Errorf("expected length %d but got %d", ts.expectedSize, len(entries))
+			}
+
+			for i, entry := range entries {
+				if entry != ts.expected[i] {
+					t.Errorf("expected entry %s but got %s", ts.expected[i], entry)
+				}
+			}
+		})
+	}
+}