1 files changed, 77 insertions, 0 deletions
diff --git a/internal/feed/nodeop_test.go b/internal/feed/nodeop_test.go
new file mode 100644
index 0000000..dd538e5
--- /dev/null
+++ b/internal/feed/nodeop_test.go
@@ -0,0 +1,77 @@
+package feed
+
+import (
+  "encoding/json"
+  "testing"
+)
+
+func TestNodeOpUnmarshalInvalidData(t *testing.T) {
+  test := []byte(`{}`)
+  var val NodeOp
+
+  if err := json.Unmarshal(test, &val); err == nil {
+    t.Errorf("got \"%s\", exp error", val)
+  }
+}
+
+func TestNodeOpUnmarshalUnknown(t *testing.T) {
+  test := []byte(`"foo"`)
+  exp := "unknown operator: foo"
+  var val NodeOp
+
+  err := json.Unmarshal(test, &val)
+  if err == nil {
+    t.Errorf("got \"%s\", exp error", val)
+    return
+  }
+
+  if err.Error() != exp {
+    t.Errorf("got \"%s\", exp \"%s\"", err.Error(), exp)
+  }
+}
+
+func TestNodeOpUnmarshalValid(t *testing.T) {
+  tests := []struct {
+    val string
+    exp NodeOp
+  } {
+    { "\"AND\"", AndOp },
+    { "\"OR\"", OrOp },
+  }
+
+  for _, test := range(tests) {
+    t.Run(test.val, func(t *testing.T) {
+      var got NodeOp
+      if err := json.Unmarshal([]byte(test.val), &got); err != nil {
+        t.Error(err)
+        return
+      }
+
+      if got != test.exp {
+        t.Errorf("got \"%s\", exp \"%s\"", got, test.exp)
+      }
+    })
+  }
+}
+
+func TestNodeOpString(t *testing.T) {
+  tests := []struct {
+    val NodeOp
+    exp string
+  } {
+    { AndOp, "AND" },
+    { OrOp, "OR" },
+
+    { NodeOp(255), "NodeOp(255)" },
+  }
+
+  for _, test := range(tests) {
+    t.Run(test.exp, func(t *testing.T) {
+      got := test.val.String()
+
+      if got != test.exp {
+        t.Errorf("got \"%s\", exp \"%s\"", got, test.exp)
+      }
+    })
+  }
+}