mirror of
https://github.com/zellyn/go6502.git
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51 lines
727 B
Go
51 lines
727 B
Go
package expr
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import (
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"testing"
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)
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func TestExpressionString(t *testing.T) {
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tests := []struct {
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expr E
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want string
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}{
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{
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E{},
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"?",
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},
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{
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E{Op: OpLeaf, Text: "*"},
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"*",
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},
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{
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E{
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Op: OpPlus,
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Left: &E{Op: OpLeaf, Text: "Label"},
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Right: &E{Op: OpLeaf, Val: 42},
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},
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"(+ Label $002a)",
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},
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{
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E{
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Op: OpMinus,
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Left: &E{Op: OpLeaf, Text: "Label"},
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Right: &E{Op: OpLeaf, Val: 42},
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},
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"(- Label $002a)",
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},
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{
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E{
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Op: OpMinus,
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Left: &E{Op: OpLeaf, Val: 42},
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},
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"(- $002a)",
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},
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}
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for i, tt := range tests {
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got := tt.expr.String()
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if got != tt.want {
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t.Errorf(`%d: want String(expr)="%s"; got "%s"`, i, tt.want, got)
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}
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}
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}
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