147 lines
4.4 KiB
Go
147 lines
4.4 KiB
Go
package service
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import (
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"net/http"
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"net/http/httptest"
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"testing"
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"github.com/spf13/cast"
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"github.com/stretchr/testify/assert"
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)
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func TestGetParams_DirectURI(t *testing.T) {
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// Verify that direct URI parameter works
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req := httptest.NewRequest("GET", "/read?uri=192.168.1.1:502&address=100&type=holding&encoding=uint16", nil)
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w := httptest.NewRecorder()
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modbusRead(w, req)
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assert.Equal(t, http.StatusInternalServerError, w.Code)
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assert.NotEmpty(t, w.Body.String())
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}
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func TestGetParams_WithScale(t *testing.T) {
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// Test with scale parameter
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req := httptest.NewRequest("GET", "/read?uri=192.168.1.1:502&id=1&address=1068&type=holding&encoding=float32s&scale=0.001", nil)
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w := httptest.NewRecorder()
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modbusRead(w, req)
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assert.Equal(t, http.StatusInternalServerError, w.Code)
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assert.NotEmpty(t, w.Body.String())
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}
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func TestGetParams_WithResultType(t *testing.T) {
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// Test with resulttype parameter
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req := httptest.NewRequest("GET", "/read?uri=192.168.1.1:502&id=1&address=1068&type=holding&encoding=float32s&resulttype=int", nil)
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w := httptest.NewRecorder()
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modbusRead(w, req)
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assert.Equal(t, http.StatusInternalServerError, w.Code)
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assert.NotEmpty(t, w.Body.String())
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}
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func TestGetParams_CompleteRequest(t *testing.T) {
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// Test complete request with all parameters
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req := httptest.NewRequest("GET", "/read?uri=192.168.1.1:502&id=1&address=1068&type=holding&encoding=float32s&scale=0.001&resulttype=int", nil)
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w := httptest.NewRecorder()
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modbusRead(w, req)
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assert.Equal(t, http.StatusInternalServerError, w.Code)
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assert.NotEmpty(t, w.Body.String())
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}
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func TestGetParams_RS485Serial(t *testing.T) {
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// Test RS485 serial connection with device parameter
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req := httptest.NewRequest("GET", "/read?device=/dev/ttyUSB0&baudrate=9600&comset=8N1&id=1&address=1068&type=holding&encoding=float32s&scale=0.001", nil)
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w := httptest.NewRecorder()
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modbusRead(w, req)
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assert.Equal(t, http.StatusInternalServerError, w.Code)
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assert.NotEmpty(t, w.Body.String())
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}
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func TestGetParams_RS485Serial_WithResultType(t *testing.T) {
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// Test RS485 serial with resulttype parameter
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req := httptest.NewRequest("GET", "/read?device=/dev/ttyUSB0&baudrate=19200&comset=8N1&id=1&address=100&type=holding&encoding=uint16&resulttype=int", nil)
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w := httptest.NewRecorder()
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modbusRead(w, req)
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assert.Equal(t, http.StatusInternalServerError, w.Code)
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assert.NotEmpty(t, w.Body.String())
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}
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func TestGetParams_MissingConnection(t *testing.T) {
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// Test that either uri or device is required
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req := httptest.NewRequest("GET", "/read?id=1&address=100&type=holding&encoding=uint16", nil)
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w := httptest.NewRecorder()
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modbusRead(w, req)
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// Should return 400 error
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assert.Equal(t, http.StatusBadRequest, w.Code)
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assert.Contains(t, w.Body.String(), "uri or device")
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}
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func TestGetParams_MissingAddress(t *testing.T) {
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// Test that address parameter is required
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req := httptest.NewRequest("GET", "/read?uri=192.168.1.1:502&type=holding&encoding=uint16", nil)
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w := httptest.NewRecorder()
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modbusRead(w, req)
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assert.Equal(t, http.StatusBadRequest, w.Code)
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assert.Contains(t, w.Body.String(), "address")
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}
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func TestGetParams_AddressZero(t *testing.T) {
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// Test that address=0 is valid (not treated as missing)
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req := httptest.NewRequest("GET", "/read?uri=192.168.1.1:502&address=0&type=holding&encoding=uint16", nil)
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w := httptest.NewRecorder()
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modbusRead(w, req)
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// Should NOT return 400 - address 0 is valid, will fail at connection
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assert.Equal(t, http.StatusInternalServerError, w.Code)
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}
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func TestApplyCast(t *testing.T) {
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tests := []struct {
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name string
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value any
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castType string
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expected any
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}{
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// Int conversions
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{"float to int", 42.7, "int", int64(42)},
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{"string to int", "42", "int", int64(42)},
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{"int to int", 42, "int", int64(42)},
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{"negative float to int", -42.9, "int", int64(-42)},
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// Float conversions
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{"int to float", 42, "float", float64(42.0)},
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{"string to float", "42.7", "float", float64(42.7)},
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{"float to float", 42.7, "float", float64(42.7)},
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// String conversions
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{"int to string", 42, "string", "42"},
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{"float to string", 42.7, "string", "42.7"},
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{"string to string", "hello", "string", "hello"},
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// Unknown/empty type (should return original)
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{"unknown type", 42, "unknown", 42},
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{"empty type", 42, "", 42},
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{"nil value", nil, "int", int64(0)},
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}
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for _, tt := range tests {
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t.Run(tt.name, func(t *testing.T) {
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result := toString(tt.value, tt.castType)
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assert.Equal(t, cast.ToString(tt.expected), result)
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})
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}
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}
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