159 lines
3.5 KiB
Go
159 lines
3.5 KiB
Go
package money
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import "testing"
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func TestToCent(t *testing.T) {
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tests := []struct {
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name string
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yuan float64
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want int64
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}{
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{"12.3元转1230分", 12.3, 1230},
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{"12.34元转1234分", 12.34, 1234},
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{"12.36元转1236分", 12.36, 1236},
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{"0.1元转10分", 0.1, 10},
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{"100元转10000分", 100.0, 10000},
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{"零值", 0.0, 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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got := ToCent(tt.yuan)
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if got != tt.want {
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t.Errorf("ToCent(%v) = %v, want %v", tt.yuan, got, tt.want)
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}
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})
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}
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}
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func TestToDisplayYuan(t *testing.T) {
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tests := []struct {
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name string
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cent int64
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want float64
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}{
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{"123分展示1.2元", 123, 1.2},
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{"1234分展示12.3元", 1234, 12.3},
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{"1236分展示12.4元", 1236, 12.4},
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{"10分展示0.1元", 10, 0.1},
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{"1000分展示10.0元", 1000, 10.0},
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{"零值", 0, 0.0},
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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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got := ToDisplayYuan(tt.cent)
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if got != tt.want {
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t.Errorf("ToDisplayYuan(%v) = %v, want %v", tt.cent, got, tt.want)
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}
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})
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}
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}
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func TestFormat(t *testing.T) {
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tests := []struct {
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name string
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cent int64
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want string
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}{
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{"123分格式化", 123, "1.2"},
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{"1234分格式化", 1234, "12.3"},
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{"1236分格式化", 1236, "12.4"},
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{"10分格式化", 10, "0.1"},
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{"1000分格式化", 1000, "10.0"},
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{"零值格式化", 0, "0.0"},
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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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got := Format(tt.cent)
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if got != tt.want {
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t.Errorf("Format(%v) = %v, want %v", tt.cent, got, tt.want)
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}
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})
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}
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}
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func TestFormatWithSymbol(t *testing.T) {
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tests := []struct {
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name string
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cent int64
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want string
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}{
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{"123分带符号", 123, "¥1.2"},
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{"1000分带符号", 1000, "¥10.0"},
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{"零值带符号", 0, "¥0.0"},
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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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got := FormatWithSymbol(tt.cent)
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if got != tt.want {
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t.Errorf("FormatWithSymbol(%v) = %v, want %v", tt.cent, got, tt.want)
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}
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})
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}
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}
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func TestRound(t *testing.T) {
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tests := []struct {
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name string
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value float64
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want float64
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}{
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{"12.34舍入到12.3", 12.34, 12.3},
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{"12.36舍入到12.4", 12.36, 12.4},
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{"12.35舍入到12.4", 12.35, 12.4},
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{"0.05舍入到0.1", 0.05, 0.1},
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{"0.04舍入到0.0", 0.04, 0.0},
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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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got := Round(tt.value)
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if got != tt.want {
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t.Errorf("Round(%v) = %v, want %v", tt.value, got, tt.want)
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}
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})
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}
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}
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func TestMinMax(t *testing.T) {
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t.Run("Min", func(t *testing.T) {
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if got := Min(100, 200); got != 100 {
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t.Errorf("Min(100, 200) = %v, want 100", got)
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}
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if got := Min(200, 100); got != 100 {
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t.Errorf("Min(200, 100) = %v, want 100", got)
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}
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})
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t.Run("Max", func(t *testing.T) {
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if got := Max(100, 200); got != 200 {
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t.Errorf("Max(100, 200) = %v, want 200", got)
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}
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if got := Max(200, 100); got != 200 {
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t.Errorf("Max(200, 100) = %v, want 200", got)
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}
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})
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}
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// 测试双向转换的精度
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func TestRoundTrip(t *testing.T) {
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tests := []struct {
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name string
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originalYuan float64
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expectDisplay float64
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}{
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{"12.3元往返", 12.3, 12.3},
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{"12.34元往返（展示到角）", 12.34, 12.3},
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{"100.0元往返", 100.0, 100.0},
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{"0.1元往返", 0.1, 0.1},
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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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cent := ToCent(tt.originalYuan)
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got := ToDisplayYuan(cent)
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if got != tt.expectDisplay {
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t.Errorf("往返转换：%v元 -> %v分 -> %v元, 期望 %v元",
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tt.originalYuan, cent, got, tt.expectDisplay)
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}
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})
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}
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}
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