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expression_test.go
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expression_test.go
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package solparser_test
import (
"errors"
"strings"
"testing"
"github.com/google/go-cmp/cmp"
"github.com/uji/solparser"
"github.com/uji/solparser/ast"
"github.com/uji/solparser/token"
)
func TestParser_ParseExpression(t *testing.T) {
tests := []struct {
name string
input string
want ast.Expression
err *token.PosError
}{
{
name: "Literal",
input: `"Hello World!!";`,
want: &ast.StringLiteral{
Type: token.NonEmptyStringLiteral,
Value: `"Hello World!!"`,
Position: pos(1, 1),
},
err: nil,
},
{
name: "Not expression",
input: "pragma",
err: &token.PosError{
Pos: token.Pos{
Column: 1,
Line: 1,
},
Msg: "not found expression.",
},
},
}
for _, tt := range tests {
t.Run(tt.name, func(*testing.T) {
r := strings.NewReader(tt.input)
p := solparser.New(r)
got, err := p.ParseExpression()
var sErr *token.PosError
if errors.As(err, &sErr) {
if diff := cmp.Diff(tt.err, sErr); diff != "" {
t.Errorf("%s", diff)
}
}
if diff := cmp.Diff(tt.want, got); diff != "" {
t.Errorf("%s", diff)
}
})
}
}