109 lines
1.9 KiB
Go
109 lines
1.9 KiB
Go
package parser
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import (
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"testing"
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"github.com/a-h/parse"
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"github.com/google/go-cmp/cmp"
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)
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func TestStringExpressionParser(t *testing.T) {
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var tests = []struct {
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name string
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input string
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expected StringExpression
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}{
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{
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name: "basic expression",
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input: `{ "this" }`,
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expected: StringExpression{
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Expression: Expression{
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Value: `"this"`,
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Range: Range{
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From: Position{
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Index: 2,
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Line: 0,
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Col: 2,
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},
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To: Position{
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Index: 8,
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Line: 0,
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Col: 8,
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},
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},
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},
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},
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},
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{
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name: "no spaces",
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input: `{"this"}`,
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expected: StringExpression{
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Expression: Expression{
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Value: `"this"`,
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Range: Range{
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From: Position{
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Index: 1,
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Line: 0,
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Col: 1,
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},
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To: Position{
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Index: 7,
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Line: 0,
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Col: 7,
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},
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},
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},
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},
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},
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{
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name: "multiple lines",
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input: `{ test{}.Call(a,
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b,
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c) }`,
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expected: StringExpression{
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Expression: Expression{
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Value: "test{}.Call(a,\n\t\tb,\n\t c)",
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Range: Range{
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From: Position{
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Index: 2,
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Line: 0,
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Col: 2,
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},
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To: Position{
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Index: 27,
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Line: 2,
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Col: 5,
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},
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},
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},
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},
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},
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}
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for _, tt := range tests {
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tt := tt
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t.Run(tt.name, func(t *testing.T) {
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input := parse.NewInput(tt.input)
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an, ok, err := stringExpression.Parse(input)
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if err != nil {
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t.Fatalf("unexpected error: %v", err)
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}
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if !ok {
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t.Fatalf("unexpected failure for input %q", tt.input)
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}
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actual := an.(StringExpression)
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if diff := cmp.Diff(tt.expected, actual); diff != "" {
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t.Error(diff)
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}
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// Check the index.
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cut := tt.input[actual.Expression.Range.From.Index:actual.Expression.Range.To.Index]
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if tt.expected.Expression.Value != cut {
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t.Errorf("range, expected %q, got %q", tt.expected.Expression.Value, cut)
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}
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})
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}
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}
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