databricks-cli/libs/dyn/visit_get_test.go

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package dyn_test
import (
"testing"
"github.com/databricks/cli/libs/dyn"
assert "github.com/databricks/cli/libs/dyn/dynassert"
)
func TestGetWithEmptyPath(t *testing.T) {
// An empty path means to return the value itself.
vin := dyn.V(42)
vout, err := dyn.GetByPath(vin, dyn.NewPath())
assert.NoError(t, err)
assert.Equal(t, vin, vout)
}
func TestGetOnNilValue(t *testing.T) {
var err error
_, err = dyn.GetByPath(dyn.NilValue, dyn.NewPath(dyn.Key("foo")))
assert.ErrorContains(t, err, `expected a map to index "foo", found nil`)
_, err = dyn.GetByPath(dyn.NilValue, dyn.NewPath(dyn.Index(42)))
assert.ErrorContains(t, err, `expected a sequence to index "[42]", found nil`)
}
func TestGetOnMap(t *testing.T) {
vin := dyn.V(map[string]dyn.Value{
"foo": dyn.V(42),
"bar": dyn.V(43),
})
var err error
_, err = dyn.GetByPath(vin, dyn.NewPath(dyn.Index(42)))
assert.ErrorContains(t, err, `expected a sequence to index "[42]", found map`)
_, err = dyn.GetByPath(vin, dyn.NewPath(dyn.Key("baz")))
assert.True(t, dyn.IsNoSuchKeyError(err))
assert.ErrorContains(t, err, `key not found at "baz"`)
vfoo, err := dyn.GetByPath(vin, dyn.NewPath(dyn.Key("foo")))
assert.NoError(t, err)
assert.Equal(t, dyn.V(42), vfoo)
vbar, err := dyn.GetByPath(vin, dyn.NewPath(dyn.Key("bar")))
assert.NoError(t, err)
assert.Equal(t, dyn.V(43), vbar)
}
func TestGetOnSequence(t *testing.T) {
vin := dyn.V([]dyn.Value{
dyn.V(42),
dyn.V(43),
})
var err error
_, err = dyn.GetByPath(vin, dyn.NewPath(dyn.Key("foo")))
assert.ErrorContains(t, err, `expected a map to index "foo", found sequence`)
_, err = dyn.GetByPath(vin, dyn.NewPath(dyn.Index(-1)))
assert.True(t, dyn.IsIndexOutOfBoundsError(err))
assert.ErrorContains(t, err, `index out of bounds at "[-1]"`)
_, err = dyn.GetByPath(vin, dyn.NewPath(dyn.Index(2)))
assert.True(t, dyn.IsIndexOutOfBoundsError(err))
assert.ErrorContains(t, err, `index out of bounds at "[2]"`)
v0, err := dyn.GetByPath(vin, dyn.NewPath(dyn.Index(0)))
assert.NoError(t, err)
assert.Equal(t, dyn.V(42), v0)
v1, err := dyn.GetByPath(vin, dyn.NewPath(dyn.Index(1)))
assert.NoError(t, err)
assert.Equal(t, dyn.V(43), v1)
}