mirror of
https://github.com/mikefarah/yq.git
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291 lines
8.3 KiB
Go
291 lines
8.3 KiB
Go
package yqlib
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import (
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"bufio"
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"fmt"
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"testing"
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"github.com/mikefarah/yq/v4/test"
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)
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const csvSimple = `name,numberOfCats,likesApples,height
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Gary,1,true,168.8
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Samantha's Rabbit,2,false,-188.8
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`
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const csvMissing = `name,numberOfCats,likesApples,height
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,null,,168.8
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`
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const expectedUpdatedSimpleCsv = `name,numberOfCats,likesApples,height
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Gary,3,true,168.8
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Samantha's Rabbit,2,false,-188.8
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`
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const csvSimpleShort = `Name,Number of Cats
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Gary,1
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Samantha's Rabbit,2
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`
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const tsvSimple = `name numberOfCats likesApples height
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Gary 1 true 168.8
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Samantha's Rabbit 2 false -188.8
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`
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const expectedYamlFromCSV = `- name: Gary
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numberOfCats: 1
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likesApples: true
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height: 168.8
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- name: Samantha's Rabbit
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numberOfCats: 2
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likesApples: false
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height: -188.8
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`
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const expectedYamlFromCSVMissingData = `- name: Gary
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numberOfCats: 1
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height: 168.8
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- name: Samantha's Rabbit
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height: -188.8
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likesApples: false
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`
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const csvSimpleMissingData = `name,numberOfCats,height
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Gary,1,168.8
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Samantha's Rabbit,,-188.8
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`
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const csvTestSimpleYaml = `- [i, like, csv]
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- [because, excel, is, cool]`
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const expectedSimpleCsv = `i,like,csv
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because,excel,is,cool
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`
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const tsvTestExpectedSimpleCsv = `i like csv
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because excel is cool
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`
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var csvScenarios = []formatScenario{
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{
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description: "Encode CSV simple",
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input: csvTestSimpleYaml,
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expected: expectedSimpleCsv,
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scenarioType: "encode-csv",
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},
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{
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description: "Encode TSV simple",
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input: csvTestSimpleYaml,
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expected: tsvTestExpectedSimpleCsv,
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scenarioType: "encode-tsv",
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},
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{
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description: "Encode Empty",
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skipDoc: true,
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input: `[]`,
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expected: "",
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scenarioType: "encode-csv",
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},
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{
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description: "Comma in value",
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skipDoc: true,
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input: `["comma, in, value", things]`,
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expected: "\"comma, in, value\",things\n",
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scenarioType: "encode-csv",
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},
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{
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description: "Encode array of objects to csv",
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input: expectedYamlFromCSV,
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expected: csvSimple,
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scenarioType: "encode-csv",
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},
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{
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description: "Encode array of objects to custom csv format",
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subdescription: "Add the header row manually, then the we convert each object into an array of values - resulting in an array of arrays. Pick the columns and call the header whatever you like.",
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input: expectedYamlFromCSV,
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expected: csvSimpleShort,
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expression: `[["Name", "Number of Cats"]] + [.[] | [.name, .numberOfCats ]]`,
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scenarioType: "encode-csv",
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},
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{
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description: "Encode array of objects to csv - missing fields behaviour",
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subdescription: "First entry is used to determine the headers, and it is missing 'likesApples', so it is not included in the csv. Second entry does not have 'numberOfCats' so that is blank",
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input: expectedYamlFromCSVMissingData,
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expected: csvSimpleMissingData,
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scenarioType: "encode-csv",
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},
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{
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description: "decode csv missing",
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skipDoc: true,
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input: csvMissing,
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expected: csvMissing,
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scenarioType: "roundtrip-csv",
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},
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{
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description: "Parse CSV into an array of objects",
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subdescription: "First row is assumed to be the header row.",
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input: csvSimple,
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expected: expectedYamlFromCSV,
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scenarioType: "decode-csv-object",
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},
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{
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description: "Scalar roundtrip",
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skipDoc: true,
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input: "mike\ncat",
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expression: ".[0].mike",
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expected: "cat\n",
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scenarioType: "roundtrip-csv",
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},
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{
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description: "Parse TSV into an array of objects",
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subdescription: "First row is assumed to be the header row.",
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input: tsvSimple,
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expected: expectedYamlFromCSV,
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scenarioType: "decode-tsv-object",
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},
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{
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description: "Round trip",
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input: csvSimple,
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expected: expectedUpdatedSimpleCsv,
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expression: `(.[] | select(.name == "Gary") | .numberOfCats) = 3`,
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scenarioType: "roundtrip-csv",
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},
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}
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func testCSVScenario(t *testing.T, s formatScenario) {
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switch s.scenarioType {
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case "encode-csv":
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test.AssertResultWithContext(t, s.expected, mustProcessFormatScenario(s, NewYamlDecoder(ConfiguredYamlPreferences), NewCsvEncoder(',')), s.description)
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case "encode-tsv":
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test.AssertResultWithContext(t, s.expected, mustProcessFormatScenario(s, NewYamlDecoder(ConfiguredYamlPreferences), NewCsvEncoder('\t')), s.description)
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case "decode-csv-object":
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test.AssertResultWithContext(t, s.expected, mustProcessFormatScenario(s, NewCSVObjectDecoder(','), NewYamlEncoder(2, false, ConfiguredYamlPreferences)), s.description)
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case "decode-tsv-object":
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test.AssertResultWithContext(t, s.expected, mustProcessFormatScenario(s, NewCSVObjectDecoder('\t'), NewYamlEncoder(2, false, ConfiguredYamlPreferences)), s.description)
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case "roundtrip-csv":
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test.AssertResultWithContext(t, s.expected, mustProcessFormatScenario(s, NewCSVObjectDecoder(','), NewCsvEncoder(',')), s.description)
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default:
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panic(fmt.Sprintf("unhandled scenario type %q", s.scenarioType))
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}
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}
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func documentCSVDecodeObjectScenario(w *bufio.Writer, s formatScenario, formatType string) {
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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, fmt.Sprintf("Given a sample.%v file of:\n", formatType))
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writeOrPanic(w, fmt.Sprintf("```%v\n%v\n```\n", formatType, s.input))
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writeOrPanic(w, "then\n")
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writeOrPanic(w, fmt.Sprintf("```bash\nyq -p=%v sample.%v\n```\n", formatType, formatType))
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writeOrPanic(w, "will output\n")
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separator := ','
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if formatType == "tsv" {
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separator = '\t'
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}
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writeOrPanic(w, fmt.Sprintf("```yaml\n%v```\n\n",
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mustProcessFormatScenario(s, NewCSVObjectDecoder(separator), NewYamlEncoder(s.indent, false, ConfiguredYamlPreferences))),
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)
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}
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func documentCSVEncodeScenario(w *bufio.Writer, s formatScenario, formatType string) {
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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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expression := s.expression
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if expression != "" {
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writeOrPanic(w, fmt.Sprintf("```bash\nyq -o=%v '%v' sample.yml\n```\n", formatType, expression))
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} else {
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writeOrPanic(w, fmt.Sprintf("```bash\nyq -o=%v sample.yml\n```\n", formatType))
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}
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writeOrPanic(w, "will output\n")
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separator := ','
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if formatType == "tsv" {
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separator = '\t'
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}
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writeOrPanic(w, fmt.Sprintf("```%v\n%v```\n\n", formatType,
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mustProcessFormatScenario(s, NewYamlDecoder(ConfiguredYamlPreferences), NewCsvEncoder(separator))),
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)
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}
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func documentCSVRoundTripScenario(w *bufio.Writer, s formatScenario, formatType string) {
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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, fmt.Sprintf("Given a sample.%v file of:\n", formatType))
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writeOrPanic(w, fmt.Sprintf("```%v\n%v\n```\n", formatType, 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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writeOrPanic(w, fmt.Sprintf("```bash\nyq -p=%v -o=%v '%v' sample.%v\n```\n", formatType, formatType, expression, formatType))
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} else {
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writeOrPanic(w, fmt.Sprintf("```bash\nyq -p=%v -o=%v sample.%v\n```\n", formatType, formatType, formatType))
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}
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writeOrPanic(w, "will output\n")
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separator := ','
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if formatType == "tsv" {
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separator = '\t'
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}
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writeOrPanic(w, fmt.Sprintf("```%v\n%v```\n\n", formatType,
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mustProcessFormatScenario(s, NewCSVObjectDecoder(separator), NewCsvEncoder(separator))),
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)
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}
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func documentCSVScenario(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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switch s.scenarioType {
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case "encode-csv":
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documentCSVEncodeScenario(w, s, "csv")
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case "encode-tsv":
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documentCSVEncodeScenario(w, s, "tsv")
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case "decode-csv-object":
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documentCSVDecodeObjectScenario(w, s, "csv")
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case "decode-tsv-object":
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documentCSVDecodeObjectScenario(w, s, "tsv")
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case "roundtrip-csv":
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documentCSVRoundTripScenario(w, s, "csv")
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default:
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panic(fmt.Sprintf("unhandled scenario type %q", s.scenarioType))
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}
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}
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func TestCSVScenarios(t *testing.T) {
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for _, tt := range csvScenarios {
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testCSVScenario(t, tt)
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}
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genericScenarios := make([]interface{}, len(csvScenarios))
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for i, s := range csvScenarios {
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genericScenarios[i] = s
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}
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documentScenarios(t, "usage", "csv-tsv", genericScenarios, documentCSVScenario)
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}
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