cue: add tests for manually created builtins
fixes bug with JSON encoding
Change-Id: I3f4ed6daf0985cb90a2f5738abc74be6fdf29a57
Reviewed-on: https://cue-review.googlesource.com/c/cue/+/2326
Reviewed-by: Marcel van Lohuizen <mpvl@google.com>
diff --git a/cue/builtin_test.go b/cue/builtin_test.go
index 83cd80d..a560b08 100644
--- a/cue/builtin_test.go
+++ b/cue/builtin_test.go
@@ -16,6 +16,7 @@
import (
"fmt"
+ "math/big"
"strings"
"testing"
)
@@ -31,6 +32,11 @@
[]string{fmt.Sprintf("(%s)", expr)},
}}
}
+ hexToDec := func(s string) string {
+ var x big.Int
+ x.SetString(s, 16)
+ return x.String()
+ }
testCases := []struct {
instances []*bimport
emit string
@@ -128,6 +134,66 @@
}, {
testExpr(`or([])`),
`_|_(builtin:or:empty or)`,
+ }, {
+ test("encoding/csv", `csv.Encode([[1,2,3],[4,5],[7,8,9]])`),
+ `"1,2,3\n4,5\n7,8,9\n"`,
+ }, {
+ test("encoding/csv", `csv.Encode([["a", "b"], ["c"]])`),
+ `"a,b\nc\n"`,
+ }, {
+ test("encoding/json", `json.Valid("1")`),
+ `true`,
+ }, {
+ test("encoding/json", `json.Compact("[1, 2]")`),
+ `"[1,2]"`,
+ }, {
+ test("encoding/json", `json.Indent(#"{"a": 1, "b": 2}"#, "", " ")`),
+ `"{\n \"a\": 1,\n \"b\": 2\n}"`,
+ }, {
+ test("encoding/json", `json.Unmarshal("1")`),
+ `1`,
+ }, {
+ test("encoding/json", `json.MarshalStream([{a: 1}, {b: 2}])`),
+ `"{\"a\":1}\n{\"b\":2}\n"`,
+ }, {
+ test("encoding/yaml", `yaml.MarshalStream([{a: 1}, {b: 2}])`),
+ `"a: 1\n---\nb: 2\n"`,
+ }, {
+ test("strings", `strings.ToCamel("AlphaBeta")`),
+ `"alphaBeta"`,
+ }, {
+ test("strings", `strings.ToTitle("alpha")`),
+ `"Alpha"`,
+ }, {
+ test("math/bits", `bits.And(0x10000000000000F0E, 0xF0F7)`), `6`,
+ }, {
+ test("math/bits", `bits.Or(0x100000000000000F0, 0x0F)`),
+ hexToDec("100000000000000FF"),
+ }, {
+ test("math/bits", `bits.Xor(0x10000000000000F0F, 0xFF0)`),
+ hexToDec("100000000000000FF"),
+ }, {
+ test("math/bits", `bits.Xor(0xFF0, 0x10000000000000F0F)`),
+ hexToDec("100000000000000FF"),
+ }, {
+ test("math/bits", `bits.Clear(0xF, 0x100000000000008)`), `7`,
+ }, {
+ test("math/bits", `bits.Clear(0x1000000000000000008, 0xF)`),
+ hexToDec("1000000000000000000"),
+ }, {
+ test("text/tabwriter", `tabwriter.Write("""
+ a\tb\tc
+ aaa\tbb\tvv
+ """)`),
+ `"a b c\naaa bb vv"`,
+ }, {
+ test("text/tabwriter", `tabwriter.Write([
+ "a\tb\tc",
+ "aaa\tbb\tvv"])`),
+ `"a b c\naaa bb vv\n"`,
+ }, {
+ test("text/template", `template.Execute("{{.}}-{{.}}", "foo")`),
+ `"foo-foo"`,
}}
for _, tc := range testCases {
t.Run("", func(t *testing.T) {
diff --git a/cue/go.go b/cue/go.go
index a577772..9e97e52 100644
--- a/cue/go.go
+++ b/cue/go.go
@@ -24,6 +24,7 @@
"strings"
"sync"
+ "cuelang.org/go/cue/ast"
"cuelang.org/go/cue/parser"
"cuelang.org/go/cue/token"
"cuelang.org/go/internal"
@@ -194,6 +195,10 @@
// null by default, but may still be set: *null | _.
return makeNullable(&top{src.base()}).(evaluated)
+ case ast.Expr:
+ x := newVisitorCtx(ctx, nil, nil, nil)
+ return ctx.manifest(x.walk(v))
+
case *big.Int:
n := newNum(src, intKind)
n.v.Coeff.Set(v)
