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hcl/hclwrite/ast_body_test.go
Martin Atkins fd915f557d hclwrite: Rename Body.AppendBlock to AppendNewBlock 
Since this function implicitly creates a new body, this name is more
appropriate and leaves the name "AppendBlock" open for a later method to
append an _existing_ block, such as when moving a block from one file
to another.
2018-11-03 19:54:56 +00:00

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package hclwrite
import (
"fmt"
"reflect"
"testing"
"github.com/davecgh/go-spew/spew"
"github.com/google/go-cmp/cmp"
"github.com/hashicorp/hcl2/hcl"
"github.com/hashicorp/hcl2/hcl/hclsyntax"
"github.com/zclconf/go-cty/cty"
)
func TestBodyGetAttribute(t *testing.T) {
tests := []struct {
src string
name string
want Tokens
}{
{
"",
"a",
nil,
},
{
"a = 1\n",
"a",
Tokens{
{
Type: hclsyntax.TokenIdent,
Bytes: []byte{'a'},
SpacesBefore: 0,
},
{
Type: hclsyntax.TokenEqual,
Bytes: []byte{'='},
SpacesBefore: 1,
},
{
Type: hclsyntax.TokenNumberLit,
Bytes: []byte{'1'},
SpacesBefore: 1,
},
{
Type: hclsyntax.TokenNewline,
Bytes: []byte{'\n'},
SpacesBefore: 0,
},
},
},
{
"a = 1\nb = 1\nc = 1\n",
"a",
Tokens{
{
Type: hclsyntax.TokenIdent,
Bytes: []byte{'a'},
SpacesBefore: 0,
},
{
Type: hclsyntax.TokenEqual,
Bytes: []byte{'='},
SpacesBefore: 1,
},
{
Type: hclsyntax.TokenNumberLit,
Bytes: []byte{'1'},
SpacesBefore: 1,
},
{
Type: hclsyntax.TokenNewline,
Bytes: []byte{'\n'},
SpacesBefore: 0,
},
},
},
{
"a = 1\nb = 2\nc = 3\n",
"b",
Tokens{
{
Type: hclsyntax.TokenIdent,
Bytes: []byte{'b'},
SpacesBefore: 0,
},
{
Type: hclsyntax.TokenEqual,
Bytes: []byte{'='},
SpacesBefore: 1,
},
{
Type: hclsyntax.TokenNumberLit,
Bytes: []byte{'2'},
SpacesBefore: 1,
},
{
Type: hclsyntax.TokenNewline,
Bytes: []byte{'\n'},
SpacesBefore: 0,
},
},
},
{
"a = 1\nb = 2\nc = 3\n",
"c",
Tokens{
{
Type: hclsyntax.TokenIdent,
Bytes: []byte{'c'},
SpacesBefore: 0,
},
{
Type: hclsyntax.TokenEqual,
Bytes: []byte{'='},
SpacesBefore: 1,
},
{
Type: hclsyntax.TokenNumberLit,
Bytes: []byte{'3'},
SpacesBefore: 1,
},
{
Type: hclsyntax.TokenNewline,
Bytes: []byte{'\n'},
SpacesBefore: 0,
},
},
},
{
"a = 1\n# b is a b\nb = 2\nc = 3\n",
"b",
Tokens{
{
// Recognized as a lead comment and so attached to the attribute
Type: hclsyntax.TokenComment,
Bytes: []byte("# b is a b\n"),
SpacesBefore: 0,
},
{
Type: hclsyntax.TokenIdent,
Bytes: []byte{'b'},
SpacesBefore: 0,
},
{
Type: hclsyntax.TokenEqual,
Bytes: []byte{'='},
SpacesBefore: 1,
},
{
Type: hclsyntax.TokenNumberLit,
Bytes: []byte{'2'},
SpacesBefore: 1,
},
{
Type: hclsyntax.TokenNewline,
Bytes: []byte{'\n'},
SpacesBefore: 0,
},
},
},
{
"a = 1\n# not attached to a or b\n\nb = 2\nc = 3\n",
"b",
Tokens{
{
Type: hclsyntax.TokenIdent,
Bytes: []byte{'b'},
SpacesBefore: 0,
},
{
Type: hclsyntax.TokenEqual,
Bytes: []byte{'='},
SpacesBefore: 1,
},
{
Type: hclsyntax.TokenNumberLit,
Bytes: []byte{'2'},
SpacesBefore: 1,
},
{
Type: hclsyntax.TokenNewline,
Bytes: []byte{'\n'},
SpacesBefore: 0,
},
},
},
}
for _, test := range tests {
t.Run(fmt.Sprintf("%s in %s", test.name, test.src), func(t *testing.T) {
f, diags := ParseConfig([]byte(test.src), "", hcl.Pos{Line: 1, Column: 1})
if len(diags) != 0 {
for _, diag := range diags {
t.Logf("- %s", diag.Error())
}
t.Fatalf("unexpected diagnostics")
}
attr := f.Body().GetAttribute(test.name)
if attr == nil {
if test.want != nil {
t.Fatal("attribute not found, but want it to exist")
}
} else {
if test.want == nil {
t.Fatal("attribute found, but expecting not found")
}
got := attr.BuildTokens(nil)
if !reflect.DeepEqual(got, test.want) {
t.Errorf("wrong result\ngot: %s\nwant: %s", spew.Sdump(got), spew.Sdump(test.want))
}
}
})
}
}
func TestBodySetAttributeValue(t *testing.T) {
tests := []struct {
src string
name string
val cty.Value
want Tokens
}{
{
"",
"a",
cty.True,
Tokens{
{
Type: hclsyntax.TokenIdent,
Bytes: []byte{'a'},
SpacesBefore: 0,
},
{
Type: hclsyntax.TokenEqual,
Bytes: []byte{'='},
SpacesBefore: 1,
},
{
Type: hclsyntax.TokenIdent,
Bytes: []byte("true"),
SpacesBefore: 1,
},
{
Type: hclsyntax.TokenNewline,
Bytes: []byte{'\n'},
SpacesBefore: 0,
},
{
Type: hclsyntax.TokenEOF,
Bytes: []byte{},
SpacesBefore: 0,
},
},
},
{
"b = false\n",
"a",
cty.True,
Tokens{
{
Type: hclsyntax.TokenIdent,
Bytes: []byte{'b'},
SpacesBefore: 0,
},
{
Type: hclsyntax.TokenEqual,
Bytes: []byte{'='},
SpacesBefore: 1,
},
{
Type: hclsyntax.TokenIdent,
Bytes: []byte("false"),
SpacesBefore: 1,
},
{
Type: hclsyntax.TokenNewline,
Bytes: []byte{'\n'},
SpacesBefore: 0,
},
{
Type: hclsyntax.TokenIdent,
Bytes: []byte{'a'},
SpacesBefore: 0,
},
{
Type: hclsyntax.TokenEqual,
Bytes: []byte{'='},
SpacesBefore: 1,
},
{
Type: hclsyntax.TokenIdent,
Bytes: []byte("true"),
SpacesBefore: 1,
},
{
Type: hclsyntax.TokenNewline,
Bytes: []byte{'\n'},
SpacesBefore: 0,
},
{
Type: hclsyntax.TokenEOF,
Bytes: []byte{},
SpacesBefore: 0,
},
},
},
{
"a = false\n",
"a",
cty.True,
Tokens{
{
Type: hclsyntax.TokenIdent,
Bytes: []byte{'a'},
SpacesBefore: 0,
},
{
Type: hclsyntax.TokenEqual,
Bytes: []byte{'='},
SpacesBefore: 1,
},
{
Type: hclsyntax.TokenIdent,
Bytes: []byte("true"),
SpacesBefore: 1,
},
{
Type: hclsyntax.TokenNewline,
Bytes: []byte{'\n'},
SpacesBefore: 0,
},
{
Type: hclsyntax.TokenEOF,
Bytes: []byte{},
SpacesBefore: 0,
},
},
},
{
"a = 1\nb = false\n",
"a",
cty.True,
Tokens{
{
Type: hclsyntax.TokenIdent,
Bytes: []byte{'a'},
SpacesBefore: 0,
},
{
Type: hclsyntax.TokenEqual,
Bytes: []byte{'='},
SpacesBefore: 1,
},
{
Type: hclsyntax.TokenIdent,
Bytes: []byte("true"),
SpacesBefore: 1,
},
{
Type: hclsyntax.TokenNewline,
Bytes: []byte{'\n'},
SpacesBefore: 0,
},
{
Type: hclsyntax.TokenIdent,
Bytes: []byte{'b'},
SpacesBefore: 0,
},
{
Type: hclsyntax.TokenEqual,
Bytes: []byte{'='},
SpacesBefore: 1,
},
{
Type: hclsyntax.TokenIdent,
Bytes: []byte("false"),
SpacesBefore: 1,
},
{
Type: hclsyntax.TokenNewline,
Bytes: []byte{'\n'},
SpacesBefore: 0,
},
{
Type: hclsyntax.TokenEOF,
Bytes: []byte{},
SpacesBefore: 0,
},
},
},
}
for _, test := range tests {
t.Run(fmt.Sprintf("%s = %#v in %s", test.name, test.val, test.src), func(t *testing.T) {
f, diags := ParseConfig([]byte(test.src), "", hcl.Pos{Line: 1, Column: 1})
if len(diags) != 0 {
for _, diag := range diags {
t.Logf("- %s", diag.Error())
}
t.Fatalf("unexpected diagnostics")
}
f.Body().SetAttributeValue(test.name, test.val)
got := f.BuildTokens(nil)
format(got)
if !reflect.DeepEqual(got, test.want) {
diff := cmp.Diff(test.want, got)
t.Errorf("wrong result\ngot: %s\nwant: %s\ndiff:\n%s", spew.Sdump(got), spew.Sdump(test.want), diff)
}
})
}
}
func TestBodyAppendBlock(t *testing.T) {
tests := []struct {
src string
blockType string
labels []string
want Tokens
}{
{
"",
"foo",
nil,
Tokens{
{
Type: hclsyntax.TokenIdent,
Bytes: []byte(`foo`),
SpacesBefore: 0,
},
{
Type: hclsyntax.TokenOBrace,
Bytes: []byte{'{'},
SpacesBefore: 1,
},
{
Type: hclsyntax.TokenNewline,
Bytes: []byte{'\n'},
SpacesBefore: 0,
},
{
Type: hclsyntax.TokenCBrace,
Bytes: []byte{'}'},
SpacesBefore: 0,
},
{
Type: hclsyntax.TokenNewline,
Bytes: []byte{'\n'},
SpacesBefore: 0,
},
{
Type: hclsyntax.TokenEOF,
Bytes: []byte{},
SpacesBefore: 0,
},
},
},
{
"",
"foo",
[]string{"bar"},
Tokens{
{
Type: hclsyntax.TokenIdent,
Bytes: []byte(`foo`),
SpacesBefore: 0,
},
{
Type: hclsyntax.TokenOQuote,
Bytes: []byte(`"`),
SpacesBefore: 1,
},
{
Type: hclsyntax.TokenQuotedLit,
Bytes: []byte(`bar`),
SpacesBefore: 0,
},
{
Type: hclsyntax.TokenCQuote,
Bytes: []byte(`"`),
SpacesBefore: 0,
},
{
Type: hclsyntax.TokenOBrace,
Bytes: []byte{'{'},
SpacesBefore: 1,
},
{
Type: hclsyntax.TokenNewline,
Bytes: []byte{'\n'},
SpacesBefore: 0,
},
{
Type: hclsyntax.TokenCBrace,
Bytes: []byte{'}'},
SpacesBefore: 0,
},
{
Type: hclsyntax.TokenNewline,
Bytes: []byte{'\n'},
SpacesBefore: 0,
},
{
Type: hclsyntax.TokenEOF,
Bytes: []byte{},
SpacesBefore: 0,
},
},
},
{
"",
"foo",
[]string{"bar", "baz"},
Tokens{
{
Type: hclsyntax.TokenIdent,
Bytes: []byte(`foo`),
SpacesBefore: 0,
},
{
Type: hclsyntax.TokenOQuote,
Bytes: []byte(`"`),
SpacesBefore: 1,
},
{
Type: hclsyntax.TokenQuotedLit,
Bytes: []byte(`bar`),
SpacesBefore: 0,
},
{
Type: hclsyntax.TokenCQuote,
Bytes: []byte(`"`),
SpacesBefore: 0,
},
{
Type: hclsyntax.TokenOQuote,
Bytes: []byte(`"`),
SpacesBefore: 1,
},
{
Type: hclsyntax.TokenQuotedLit,
Bytes: []byte(`baz`),
SpacesBefore: 0,
},
{
Type: hclsyntax.TokenCQuote,
Bytes: []byte(`"`),
SpacesBefore: 0,
},
{
Type: hclsyntax.TokenOBrace,
Bytes: []byte{'{'},
SpacesBefore: 1,
},
{
Type: hclsyntax.TokenNewline,
Bytes: []byte{'\n'},
SpacesBefore: 0,
},
{
Type: hclsyntax.TokenCBrace,
Bytes: []byte{'}'},
SpacesBefore: 0,
},
{
Type: hclsyntax.TokenNewline,
Bytes: []byte{'\n'},
SpacesBefore: 0,
},
{
Type: hclsyntax.TokenEOF,
Bytes: []byte{},
SpacesBefore: 0,
},
},
},
{
"bar {}\n",
"foo",
nil,
Tokens{
{
Type: hclsyntax.TokenIdent,
Bytes: []byte(`bar`),
SpacesBefore: 0,
},
{
Type: hclsyntax.TokenOBrace,
Bytes: []byte{'{'},
SpacesBefore: 1,
},
{
Type: hclsyntax.TokenCBrace,
Bytes: []byte{'}'},
SpacesBefore: 0,
},
{
Type: hclsyntax.TokenNewline,
Bytes: []byte{'\n'},
SpacesBefore: 0,
},
{
Type: hclsyntax.TokenIdent,
Bytes: []byte(`foo`),
SpacesBefore: 0,
},
{
Type: hclsyntax.TokenOBrace,
Bytes: []byte{'{'},
SpacesBefore: 1,
},
{
Type: hclsyntax.TokenNewline,
Bytes: []byte{'\n'},
SpacesBefore: 0,
},
{
Type: hclsyntax.TokenCBrace,
Bytes: []byte{'}'},
SpacesBefore: 0,
},
{
Type: hclsyntax.TokenNewline,
Bytes: []byte{'\n'},
SpacesBefore: 0,
},
{
Type: hclsyntax.TokenEOF,
Bytes: []byte{},
SpacesBefore: 0,
},
},
},
}
for _, test := range tests {
t.Run(fmt.Sprintf("%s %#v in %s", test.blockType, test.blockType, test.src), func(t *testing.T) {
f, diags := ParseConfig([]byte(test.src), "", hcl.Pos{Line: 1, Column: 1})
if len(diags) != 0 {
for _, diag := range diags {
t.Logf("- %s", diag.Error())
}
t.Fatalf("unexpected diagnostics")
}
f.Body().AppendNewBlock(test.blockType, test.labels)
got := f.BuildTokens(nil)
format(got)
if !reflect.DeepEqual(got, test.want) {
diff := cmp.Diff(test.want, got)
t.Errorf("wrong result\ngot: %s\nwant: %s\ndiff:\n%s", spew.Sdump(got), spew.Sdump(test.want), diff)
}
})
}
}
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