123

2026-07-13 14:31:49 +08:00
parent dac7457c60
commit 06fd99fcf9
12 changed files with 666 additions and 186 deletions
@@ -0,0 +1,54 @@
+package modbus
+
+import (
+	"encoding/binary"
+	"math"
+	"testing"
+
+	"aquacontrolai/internal/protocol"
+)
+
+func TestValidateAddress(t *testing.T) {
+	f := Factory{}
+	tests := []struct {
+		name      string
+		address   string
+		dataType  protocol.DataType
+		writable  bool
+		wantError bool
+	}{
+		{name: "holding real read", address: "40001", dataType: protocol.Real, wantError: false},
+		{name: "holding real write", address: "40005", dataType: protocol.Real, writable: true, wantError: false},
+		{name: "input real read", address: "30001", dataType: protocol.Real, wantError: false},
+		{name: "input real write denied", address: "30001", dataType: protocol.Real, writable: true, wantError: true},
+		{name: "coil bool write", address: "00001", dataType: protocol.Bool, writable: true, wantError: false},
+		{name: "coil real denied", address: "00001", dataType: protocol.Real, wantError: true},
+		{name: "discrete bool read", address: "10001", dataType: protocol.Bool, wantError: false},
+		{name: "gap denied", address: "20001", dataType: protocol.Int, wantError: true},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			err := f.ValidateAddress(tt.address, tt.dataType, tt.writable)
+			if (err != nil) != tt.wantError {
+				t.Fatalf("ValidateAddress() error=%v wantError=%v", err, tt.wantError)
+			}
+		})
+	}
+}
+
+func TestFloat32OrderCDAB(t *testing.T) {
+	const value = 12.5
+	var ieee [4]byte
+	binary.BigEndian.PutUint32(ieee[:], math.Float32bits(value))
+	raw := fromIEEEBytes(math.Float32bits(value), "CDAB")
+	wantRaw := []byte{ieee[2], ieee[3], ieee[0], ieee[1]}
+	for i := range raw {
+		if raw[i] != wantRaw[i] {
+			t.Fatalf("fromIEEEBytes CDAB byte %d=%02x want %02x", i, raw[i], wantRaw[i])
+		}
+	}
+	decoded := math.Float32frombits(binary.BigEndian.Uint32(toIEEEBytes(raw, "CDAB")))
+	if math.Abs(float64(decoded)-value) > 0.0001 {
+		t.Fatalf("decoded=%v want %v", decoded, value)
+	}
+}