mirror of
https://github.com/mikefarah/yq.git
synced 2024-11-13 22:38:04 +00:00
435 lines
11 KiB
Go
435 lines
11 KiB
Go
package yqlib
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import (
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"bufio"
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"bytes"
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"fmt"
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"strings"
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"testing"
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"github.com/mikefarah/yq/v4/test"
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yaml "gopkg.in/yaml.v3"
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)
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func decodeXml(t *testing.T, s formatScenario) *CandidateNode {
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decoder := NewXmlDecoder("+", "+content")
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decoder.Init(strings.NewReader(s.input))
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node := &yaml.Node{}
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err := decoder.Decode(node)
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if err != nil {
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t.Error(err, "fail to decode", s.input)
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}
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expression := s.expression
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if expression == "" {
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expression = "."
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}
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exp, err := NewExpressionParser().ParseExpression(expression)
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if err != nil {
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t.Error(err)
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return nil
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}
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candidateNode := CandidateNode{Node: node}
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context, err := NewDataTreeNavigator().GetMatchingNodes(Context{MatchingNodes: candidateNode.AsList()}, exp)
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if err != nil {
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t.Error(err)
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return nil
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}
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return context.MatchingNodes.Front().Value.(*CandidateNode)
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}
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func processXmlScenario(s formatScenario) string {
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var output bytes.Buffer
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writer := bufio.NewWriter(&output)
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var encoder = NewXmlEncoder(2, "+", "+content")
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var decoder = NewYamlDecoder()
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if s.scenarioType == "roundtrip" {
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decoder = NewXmlDecoder("+", "+content")
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}
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inputs, err := readDocuments(strings.NewReader(s.input), "sample.yml", 0, decoder)
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if err != nil {
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panic(err)
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}
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node := inputs.Front().Value.(*CandidateNode).Node
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err = encoder.Encode(writer, node)
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if err != nil {
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panic(err)
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}
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writer.Flush()
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return output.String()
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}
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type formatScenario struct {
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input string
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indent int
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expression string
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expected string
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description string
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subdescription string
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skipDoc bool
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scenarioType string
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}
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var inputXmlWithComments = `
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<!-- before cat -->
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<cat>
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<!-- in cat before -->
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<x>3<!-- multi
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line comment
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for x --></x>
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<!-- before y -->
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<y>
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<!-- in y before -->
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<d><!-- in d before -->z<!-- in d after --></d>
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<!-- in y after -->
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</y>
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<!-- in_cat_after -->
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</cat>
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<!-- after cat -->
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`
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var inputXmlWithCommentsWithSubChild = `
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<!-- before cat -->
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<cat>
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<!-- in cat before -->
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<x>3<!-- multi
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line comment
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for x --></x>
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<!-- before y -->
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<y>
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<!-- in y before -->
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<d><!-- in d before --><z sweet="cool"/><!-- in d after --></d>
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<!-- in y after -->
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</y>
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<!-- in_cat_after -->
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</cat>
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<!-- after cat -->
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`
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var expectedDecodeYamlWithSubChild = `D0, P[], (doc)::# before cat
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cat:
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# in cat before
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x: "3" # multi
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# line comment
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# for x
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# before y
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y:
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# in y before
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d:
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# in d before
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z:
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+sweet: cool
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# in d after
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# in y after
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# in_cat_after
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# after cat
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`
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var inputXmlWithCommentsWithArray = `
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<!-- before cat -->
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<cat>
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<!-- in cat before -->
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<x>3<!-- multi
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line comment
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for x --></x>
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<!-- before y -->
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<y>
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<!-- in y before -->
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<d><!-- in d before --><z sweet="cool"/><!-- in d after --></d>
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<d><!-- in d2 before --><z sweet="cool2"/><!-- in d2 after --></d>
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<!-- in y after -->
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</y>
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<!-- in_cat_after -->
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</cat>
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<!-- after cat -->
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`
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var expectedDecodeYamlWithArray = `D0, P[], (doc)::# before cat
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cat:
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# in cat before
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x: "3" # multi
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# line comment
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# for x
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# before y
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y:
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# in y before
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d:
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- # in d before
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z:
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+sweet: cool
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# in d after
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- # in d2 before
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z:
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+sweet: cool2
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# in d2 after
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# in y after
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# in_cat_after
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# after cat
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`
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var expectedDecodeYamlWithComments = `D0, P[], (doc)::# before cat
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cat:
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# in cat before
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x: "3" # multi
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# line comment
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# for x
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# before y
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y:
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# in y before
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# in d before
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d: z # in d after
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# in y after
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# in_cat_after
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# after cat
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`
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var expectedRoundtripXmlWithComments = `<!-- before cat --><cat><!-- in cat before -->
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<x>3<!-- multi
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line comment
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for x --></x><!-- before y -->
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<y><!-- in y before
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in d before -->
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<d>z<!-- in d after --></d><!-- in y after -->
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</y><!-- in_cat_after -->
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</cat><!-- after cat -->
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`
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var yamlWithComments = `# above_cat
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cat: # inline_cat
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# above_array
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array: # inline_array
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- val1 # inline_val1
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# above_val2
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- val2 # inline_val2
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# below_cat
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`
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var expectedXmlWithComments = `<!-- above_cat inline_cat --><cat><!-- above_array inline_array -->
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<array>val1<!-- inline_val1 --></array>
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<array><!-- above_val2 -->val2<!-- inline_val2 --></array>
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</cat><!-- below_cat -->
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`
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var xmlScenarios = []formatScenario{
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{
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description: "Parse xml: simple",
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subdescription: "Notice how all the values are strings, see the next example on how you can fix that.",
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input: "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<cat>\n <says>meow</says>\n <legs>4</legs>\n <cute>true</cute>\n</cat>",
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expected: "D0, P[], (doc)::cat:\n says: meow\n legs: \"4\"\n cute: \"true\"\n",
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},
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{
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description: "Parse xml: number",
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subdescription: "All values are assumed to be strings when parsing XML, but you can use the `from_yaml` operator on all the strings values to autoparse into the correct type.",
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input: "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<cat>\n <says>meow</says>\n <legs>4</legs>\n <cute>true</cute>\n</cat>",
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expression: " (.. | select(tag == \"!!str\")) |= from_yaml",
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expected: "D0, P[], ()::cat:\n says: meow\n legs: 4\n cute: true\n",
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},
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{
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description: "Parse xml: array",
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subdescription: "Consecutive nodes with identical xml names are assumed to be arrays.",
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input: "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<animal>cat</animal>\n<animal>goat</animal>",
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expected: "D0, P[], (doc)::animal:\n - cat\n - goat\n",
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},
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{
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description: "Parse xml: attributes",
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subdescription: "Attributes are converted to fields, with the default attribute prefix '+'. Use '--xml-attribute-prefix` to set your own.",
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input: "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<cat legs=\"4\">\n <legs>7</legs>\n</cat>",
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expected: "D0, P[], (doc)::cat:\n +legs: \"4\"\n legs: \"7\"\n",
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},
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{
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description: "Parse xml: attributes with content",
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subdescription: "Content is added as a field, using the default content name of `+content`. Use `--xml-content-name` to set your own.",
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input: "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<cat legs=\"4\">meow</cat>",
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expected: "D0, P[], (doc)::cat:\n +content: meow\n +legs: \"4\"\n",
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},
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{
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description: "Parse xml: with comments",
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subdescription: "A best attempt is made to preserve comments.",
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input: inputXmlWithComments,
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expected: expectedDecodeYamlWithComments,
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scenarioType: "decode",
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},
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{
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description: "Parse xml: with comments subchild",
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skipDoc: true,
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input: inputXmlWithCommentsWithSubChild,
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expected: expectedDecodeYamlWithSubChild,
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scenarioType: "decode",
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},
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{
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description: "Parse xml: with comments array",
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skipDoc: true,
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input: inputXmlWithCommentsWithArray,
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expected: expectedDecodeYamlWithArray,
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scenarioType: "decode",
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},
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{
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description: "Encode xml: simple",
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input: "cat: purrs",
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expected: "<cat>purrs</cat>\n",
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scenarioType: "encode",
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},
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{
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description: "Encode xml: array",
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input: "pets:\n cat:\n - purrs\n - meows",
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expected: "<pets>\n <cat>purrs</cat>\n <cat>meows</cat>\n</pets>\n",
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scenarioType: "encode",
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},
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{
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description: "Encode xml: attributes",
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subdescription: "Fields with the matching xml-attribute-prefix are assumed to be attributes.",
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input: "cat:\n +name: tiger\n meows: true\n",
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expected: "<cat name=\"tiger\">\n <meows>true</meows>\n</cat>\n",
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scenarioType: "encode",
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},
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{
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skipDoc: true,
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input: "cat:\n ++name: tiger\n meows: true\n",
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expected: "<cat +name=\"tiger\">\n <meows>true</meows>\n</cat>\n",
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scenarioType: "encode",
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},
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{
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description: "Encode xml: attributes with content",
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subdescription: "Fields with the matching xml-content-name is assumed to be content.",
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input: "cat:\n +name: tiger\n +content: cool\n",
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expected: "<cat name=\"tiger\">cool</cat>\n",
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scenarioType: "encode",
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},
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{
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description: "Encode xml: comments",
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subdescription: "A best attempt is made to copy comments to xml.",
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input: yamlWithComments,
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expected: expectedXmlWithComments,
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scenarioType: "encode",
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},
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{
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description: "Round trip: with comments",
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subdescription: "A best effort is made, but comment positions and white space are not preserved perfectly.",
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input: inputXmlWithComments,
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expected: expectedRoundtripXmlWithComments,
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scenarioType: "roundtrip",
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},
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}
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func testXmlScenario(t *testing.T, s formatScenario) {
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if s.scenarioType == "encode" || s.scenarioType == "roundtrip" {
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test.AssertResultWithContext(t, s.expected, processXmlScenario(s), s.description)
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} else {
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var actual = resultToString(t, decodeXml(t, s))
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test.AssertResultWithContext(t, s.expected, actual, s.description)
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}
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}
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func documentXmlScenario(t *testing.T, w *bufio.Writer, i interface{}) {
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s := i.(formatScenario)
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if s.skipDoc {
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return
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}
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if s.scenarioType == "encode" {
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documentXmlEncodeScenario(w, s)
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} else if s.scenarioType == "roundtrip" {
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documentXmlRoundTripScenario(w, s)
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} else {
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documentXmlDecodeScenario(t, w, s)
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}
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}
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func documentXmlDecodeScenario(t *testing.T, w *bufio.Writer, s formatScenario) {
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writeOrPanic(w, fmt.Sprintf("## %v\n", s.description))
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if s.subdescription != "" {
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writeOrPanic(w, s.subdescription)
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writeOrPanic(w, "\n\n")
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}
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writeOrPanic(w, "Given a sample.xml file of:\n")
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writeOrPanic(w, fmt.Sprintf("```xml\n%v\n```\n", s.input))
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writeOrPanic(w, "then\n")
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expression := s.expression
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if expression == "" {
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expression = "."
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}
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writeOrPanic(w, fmt.Sprintf("```bash\nyq e -p=xml '%v' sample.xml\n```\n", expression))
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writeOrPanic(w, "will output\n")
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var output bytes.Buffer
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printer := NewSimpleYamlPrinter(bufio.NewWriter(&output), YamlOutputFormat, true, false, 2, true)
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node := decodeXml(t, s)
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err := printer.PrintResults(node.AsList())
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if err != nil {
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t.Error(err)
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return
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}
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writeOrPanic(w, fmt.Sprintf("```yaml\n%v```\n\n", output.String()))
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}
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func documentXmlEncodeScenario(w *bufio.Writer, s formatScenario) {
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writeOrPanic(w, fmt.Sprintf("## %v\n", s.description))
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if s.subdescription != "" {
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writeOrPanic(w, s.subdescription)
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writeOrPanic(w, "\n\n")
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}
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writeOrPanic(w, "Given a sample.yml file of:\n")
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writeOrPanic(w, fmt.Sprintf("```yaml\n%v\n```\n", s.input))
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writeOrPanic(w, "then\n")
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writeOrPanic(w, "```bash\nyq e -o=xml '.' sample.yml\n```\n")
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writeOrPanic(w, "will output\n")
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writeOrPanic(w, fmt.Sprintf("```xml\n%v```\n\n", processXmlScenario(s)))
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}
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func documentXmlRoundTripScenario(w *bufio.Writer, s formatScenario) {
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writeOrPanic(w, fmt.Sprintf("## %v\n", s.description))
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if s.subdescription != "" {
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writeOrPanic(w, s.subdescription)
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writeOrPanic(w, "\n\n")
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}
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writeOrPanic(w, "Given a sample.xml file of:\n")
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writeOrPanic(w, fmt.Sprintf("```xml\n%v\n```\n", s.input))
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writeOrPanic(w, "then\n")
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writeOrPanic(w, "```bash\nyq e -p=xml -o=xml '.' sample.xml\n```\n")
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writeOrPanic(w, "will output\n")
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writeOrPanic(w, fmt.Sprintf("```xml\n%v```\n\n", processXmlScenario(s)))
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}
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func TestXmlScenarios(t *testing.T) {
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for _, tt := range xmlScenarios {
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testXmlScenario(t, tt)
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}
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genericScenarios := make([]interface{}, len(xmlScenarios))
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for i, s := range xmlScenarios {
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genericScenarios[i] = s
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}
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documentScenarios(t, "usage", "xml", genericScenarios, documentXmlScenario)
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}
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