Merge pull request #7 from radicalcompany/feature/amount_as_string

Added method to get only amount as string

convert/conversion_test.go

@@ -44,17 +44,25 @@ func TestConvertTo(t *testing.T) {
 			wantRes: money.MustForge(110, "USD"),
 			wantErr: false,
 		},
+		{
+			name: "gbp_to_usd",
+			args: args{
+				obj:  money.MustForge(100, "GBP"),
+				rate: ForgeRate(money.MustGetCurrencyByISOCode("USD"), money.MustGetCurrencyByISOCode("EUR"), 2),
+			},
+			wantErr: true,
+		},
 	}
 	for _, tt := range tests {
 		t.Run(tt.name, func(t *testing.T) {
 			gotRes, err := ConvertTo(&tt.args.obj, tt.args.rate)
-			if (err != nil) != tt.wantErr {
-				t.Errorf("ConvertTo() error = %v, wantErr %v", err, tt.wantErr)
-				return
+			if tt.wantErr {
+				assert.NotNil(t, err)
 			}
-			assert.NotNil(t, gotRes)
-			if !assert.True(t, gotRes.IsEquals(tt.wantRes)) {
-				t.Errorf("ConvertTo() gotRes = %v, want %v", gotRes, tt.wantRes)
+			if gotRes != nil {
+				if !assert.True(t, gotRes.IsEquals(tt.wantRes)) {
+					t.Errorf("ConvertTo() result = %v, want %v", gotRes, tt.wantRes)
+				}
 			}
 		})
 	}

money.go

@@ -24,6 +24,18 @@ func (m Money) Int64() int64 {
 	return int64(m.Amount)
 }
 
+func (m Money) Float() float64 {
+	if m.IsZero() {
+		return 0
+	}
+	d := m.DigitsAsCents()
+	return float64(m.Amount) / float64(d)
+}
+
+func (m Money) AmountAsString() string {
+	return fmt.Sprintf("%.2f", m.Float())
+}
+
 // Forge
 // amount   int64   A positive integer in cents
 // currCode string Three-letter ISO currency code, in lowercase
@@ -96,14 +108,6 @@ func (m Money) IsZero() bool {
 	return m.Amount == 0
 }
 
-func (m Money) Float() float64 {
-	if m.IsZero() {
-		return 0
-	}
-	d := m.DigitsAsCents()
-	return float64(m.Amount) / float64(d)
-}
-
 func (m Money) DigitsAsCents() int {
 	return m.Currency.GetCents()
 }

money_test.go

@@ -44,6 +44,13 @@ func TestFloat(t *testing.T) {
 	assert.Equal(t, OneEurAndOneCent.Float(), 1.01)
 }
 
+func TestAmountAsString(t *testing.T) {
+	OneEurAndOneCent := money.FloatEUR(1.01)
+
+	assert.Equal(t, OneEurAndOneCent.Int64(), int64(101))
+	assert.Equal(t, OneEurAndOneCent.AmountAsString(), "1.01")
+}
+
 func TestMoney_IsEquals(t *testing.T) {
 	OneEurAndOneCent := money.FloatEUR(1.01)