124 lines
2.1 KiB
Go
124 lines
2.1 KiB
Go
package config
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import (
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"reflect"
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"testing"
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)
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func TestExprParse(t *testing.T) {
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cases := []struct {
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Input string
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Result Interpolation
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Error bool
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}{
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{
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"foo",
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nil,
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true,
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},
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{
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`"foo"`,
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&LiteralInterpolation{Literal: "foo"},
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false,
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},
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{
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"var.foo",
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&VariableInterpolation{
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Variable: &UserVariable{
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Name: "foo",
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key: "var.foo",
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},
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},
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false,
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},
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{
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"lookup(var.foo, var.bar)",
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&FunctionInterpolation{
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Func: nil, // Funcs["lookup"]
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Args: []Interpolation{
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&VariableInterpolation{
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Variable: &UserVariable{
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Name: "foo",
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key: "var.foo",
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},
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},
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&VariableInterpolation{
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Variable: &UserVariable{
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Name: "bar",
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key: "var.bar",
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},
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},
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},
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},
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false,
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},
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{
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"lookup(var.foo, lookup(var.baz, var.bar))",
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&FunctionInterpolation{
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Func: nil, // Funcs["lookup"]
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Args: []Interpolation{
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&VariableInterpolation{
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Variable: &UserVariable{
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Name: "foo",
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key: "var.foo",
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},
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},
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&FunctionInterpolation{
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Func: nil, // Funcs["lookup"]
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Args: []Interpolation{
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&VariableInterpolation{
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Variable: &UserVariable{
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Name: "baz",
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key: "var.baz",
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},
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},
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&VariableInterpolation{
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Variable: &UserVariable{
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Name: "bar",
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key: "var.bar",
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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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false,
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},
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}
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for i, tc := range cases {
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actual, err := ExprParse(tc.Input)
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if (err != nil) != tc.Error {
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t.Fatalf("%d. Error: %s", i, err)
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}
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// This is jank, but reflect.DeepEqual never has functions
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// being the same.
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f, ok := actual.(*FunctionInterpolation)
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if ok {
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fs := make([]*FunctionInterpolation, 1)
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fs[0] = f
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for len(fs) > 0 {
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f := fs[0]
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fs = fs[1:]
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f.Func = nil
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for _, a := range f.Args {
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f, ok := a.(*FunctionInterpolation)
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if ok {
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fs = append(fs, f)
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}
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}
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}
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}
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if !reflect.DeepEqual(actual, tc.Result) {
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t.Fatalf("%d bad: %#v", i, actual)
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}
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}
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}
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