yq/pkg/yqlib/lua_test.go
Mike Farah fc5595d0e9 wip
2024-03-12 15:45:08 +11:00

390 lines
8.9 KiB
Go

//go:build !yq_nolua
package yqlib
import (
"bufio"
"fmt"
"testing"
"github.com/mikefarah/yq/v4/test"
)
var luaScenarios = []FormatScenario{
{
description: "Basic input example",
input: `return {
["country"] = "Australia"; -- this place
["cities"] = {
"Sydney",
"Melbourne",
"Brisbane",
"Perth",
};
};
`,
expected: `country: Australia
cities:
- Sydney
- Melbourne
- Brisbane
- Perth
`,
},
{
skipDoc: true,
description: "path",
expression: ".cities[2] | path",
input: `return {
["country"] = "Australia"; -- this place
["cities"] = {
"Sydney",
"Melbourne",
"Brisbane",
"Perth",
};
};
`,
expected: "- cities\n- 2\n",
},
{
skipDoc: true,
description: "path",
expression: ".cities[2] | key",
input: `return {
["country"] = "Australia"; -- this place
["cities"] = {
"Sydney",
"Melbourne",
"Brisbane",
"Perth",
};
};
`,
expected: "2\n",
},
{
description: "Basic output example",
scenarioType: "encode",
input: `---
country: Australia # this place
cities:
- Sydney
- Melbourne
- Brisbane
- Perth`,
expected: `return {
["country"] = "Australia"; -- this place
["cities"] = {
"Sydney",
"Melbourne",
"Brisbane",
"Perth",
};
};
`,
},
{
description: "Basic roundtrip",
skipDoc: true,
scenarioType: "roundtrip",
expression: `.cities[0] = "Adelaide"`,
input: `return {
["country"] = "Australia"; -- this place
["cities"] = {
"Sydney",
"Melbourne",
"Brisbane",
"Perth",
};
};
`,
expected: `return {
["country"] = "Australia";
["cities"] = {
"Adelaide",
"Melbourne",
"Brisbane",
"Perth",
};
};
`,
},
{
description: "Unquoted keys",
subdescription: "Uses the `--lua-unquoted` option to produce a nicer-looking output.",
scenarioType: "unquoted-encode",
input: `---
country: Australia # this place
cities:
- Sydney
- Melbourne
- Brisbane
- Perth`,
expected: `return {
country = "Australia"; -- this place
cities = {
"Sydney",
"Melbourne",
"Brisbane",
"Perth",
};
};
`,
},
{
description: "Globals",
subdescription: "Uses the `--lua-globals` option to export the values into the global scope.",
scenarioType: "globals-encode",
input: `---
country: Australia # this place
cities:
- Sydney
- Melbourne
- Brisbane
- Perth`,
expected: `country = "Australia"; -- this place
cities = {
"Sydney",
"Melbourne",
"Brisbane",
"Perth",
};
`,
},
{
description: "Elaborate example",
input: `---
hello: world
tables:
like: this
keys: values
? look: non-string keys
: True
numbers:
- decimal: 12345
- hex: 0x7fabc123
- octal: 0o30
- float: 123.45
- infinity: .inf
plus_infinity: +.inf
minus_infinity: -.inf
- not: .nan
`,
expected: `return {
["hello"] = "world";
["tables"] = {
["like"] = "this";
["keys"] = "values";
[{
["look"] = "non-string keys";
}] = true;
};
["numbers"] = {
{
["decimal"] = 12345;
},
{
["hex"] = 0x7fabc123;
},
{
["octal"] = 24;
},
{
["float"] = 123.45;
},
{
["infinity"] = (1/0);
["plus_infinity"] = (1/0);
["minus_infinity"] = (-1/0);
},
{
["not"] = (0/0);
},
};
};
`,
scenarioType: "encode",
},
{
skipDoc: true,
description: "Sequence",
input: "- a\n- b\n- c\n",
expected: "return {\n\t\"a\",\n\t\"b\",\n\t\"c\",\n};\n",
scenarioType: "encode",
},
{
skipDoc: true,
description: "Mapping",
input: "a: b\nc:\n d: e\nf: 0\n",
expected: "return {\n\t[\"a\"] = \"b\";\n\t[\"c\"] = {\n\t\t[\"d\"] = \"e\";\n\t};\n\t[\"f\"] = 0;\n};\n",
scenarioType: "encode",
},
{
skipDoc: true,
description: "Scalar str",
input: "str: |\n foo\n bar\nanother: 'single'\nand: \"double\"",
expected: "return {\n\t[\"str\"] = [[\nfoo\nbar\n]];\n\t[\"another\"] = 'single';\n\t[\"and\"] = \"double\";\n};\n",
scenarioType: "encode",
},
{
skipDoc: true,
description: "Scalar null",
input: "x: null\n",
expected: "return {\n\t[\"x\"] = nil;\n};\n",
scenarioType: "encode",
},
{
skipDoc: true,
description: "Scalar int",
input: "- 1\n- 2\n- 0x10\n- 0o30\n- -999\n",
expected: "return {\n\t1,\n\t2,\n\t0x10,\n\t24,\n\t-999,\n};\n",
scenarioType: "encode",
},
{
skipDoc: true,
description: "Scalar float",
input: "- 1.0\n- 3.14\n- 1e100\n- .Inf\n- .NAN\n",
expected: "return {\n\t1.0,\n\t3.14,\n\t1e100,\n\t(1/0),\n\t(0/0),\n};\n",
scenarioType: "encode",
},
}
func testLuaScenario(t *testing.T, s FormatScenario) {
switch s.scenarioType {
case "", "decode":
test.AssertResultWithContext(t, s.expected, mustProcessFormatScenario(s, NewLuaDecoder(ConfiguredLuaPreferences), NewYamlEncoder(ConfiguredYamlPreferences)), s.description)
case "encode":
test.AssertResultWithContext(t, s.expected, mustProcessFormatScenario(s, NewYamlDecoder(ConfiguredYamlPreferences), NewLuaEncoder(ConfiguredLuaPreferences)), s.description)
case "roundtrip":
test.AssertResultWithContext(t, s.expected, mustProcessFormatScenario(s, NewLuaDecoder(ConfiguredLuaPreferences), NewLuaEncoder(ConfiguredLuaPreferences)), s.description)
case "unquoted-encode":
test.AssertResultWithContext(t, s.expected, mustProcessFormatScenario(s, NewYamlDecoder(ConfiguredYamlPreferences), NewLuaEncoder(LuaPreferences{
DocPrefix: "return ",
DocSuffix: ";\n",
UnquotedKeys: true,
Globals: false,
})), s.description)
case "globals-encode":
test.AssertResultWithContext(t, s.expected, mustProcessFormatScenario(s, NewYamlDecoder(ConfiguredYamlPreferences), NewLuaEncoder(LuaPreferences{
DocPrefix: "return ",
DocSuffix: ";\n",
UnquotedKeys: false,
Globals: true,
})), s.description)
default:
panic(fmt.Sprintf("unhandled scenario type %q", s.scenarioType))
}
}
func documentLuaScenario(_ *testing.T, w *bufio.Writer, i interface{}) {
s := i.(FormatScenario)
if s.skipDoc {
return
}
switch s.scenarioType {
case "", "decode":
documentLuaDecodeScenario(w, s)
case "encode", "unquoted-encode", "globals-encode":
documentLuaEncodeScenario(w, s)
case "roundtrip":
documentLuaRoundTripScenario(w, s)
default:
panic(fmt.Sprintf("unhandled scenario type %q", s.scenarioType))
}
}
func documentLuaDecodeScenario(w *bufio.Writer, s FormatScenario) {
writeOrPanic(w, fmt.Sprintf("## %v\n", s.description))
if s.subdescription != "" {
writeOrPanic(w, s.subdescription)
writeOrPanic(w, "\n\n")
}
writeOrPanic(w, "Given a sample.lua file of:\n")
writeOrPanic(w, fmt.Sprintf("```lua\n%v\n```\n", s.input))
writeOrPanic(w, "then\n")
expression := s.expression
if expression == "" {
expression = "."
}
writeOrPanic(w, fmt.Sprintf("```bash\nyq -oy '%v' sample.lua\n```\n", expression))
writeOrPanic(w, "will output\n")
writeOrPanic(w, fmt.Sprintf("```yaml\n%v```\n\n", mustProcessFormatScenario(s, NewLuaDecoder(ConfiguredLuaPreferences), NewYamlEncoder(ConfiguredYamlPreferences))))
}
func documentLuaEncodeScenario(w *bufio.Writer, s FormatScenario) {
writeOrPanic(w, fmt.Sprintf("## %v\n", s.description))
if s.subdescription != "" {
writeOrPanic(w, s.subdescription)
writeOrPanic(w, "\n\n")
}
prefs := ConfiguredLuaPreferences
switch s.scenarioType {
case "unquoted-encode":
prefs = LuaPreferences{
DocPrefix: "return ",
DocSuffix: ";\n",
UnquotedKeys: true,
Globals: false,
}
case "globals-encode":
prefs = LuaPreferences{
DocPrefix: "return ",
DocSuffix: ";\n",
UnquotedKeys: false,
Globals: true,
}
}
writeOrPanic(w, "Given a sample.yml file of:\n")
writeOrPanic(w, fmt.Sprintf("```yaml\n%v\n```\n", s.input))
writeOrPanic(w, "then\n")
switch s.scenarioType {
case "unquoted-encode":
writeOrPanic(w, "```bash\nyq -o=lua --lua-unquoted '.' sample.yml\n```\n")
case "globals-encode":
writeOrPanic(w, "```bash\nyq -o=lua --lua-globals '.' sample.yml\n```\n")
default:
writeOrPanic(w, "```bash\nyq -o=lua '.' sample.yml\n```\n")
}
writeOrPanic(w, "will output\n")
writeOrPanic(w, fmt.Sprintf("```lua\n%v```\n\n", mustProcessFormatScenario(s, NewYamlDecoder(ConfiguredYamlPreferences), NewLuaEncoder(prefs))))
}
func documentLuaRoundTripScenario(w *bufio.Writer, s FormatScenario) {
writeOrPanic(w, fmt.Sprintf("## %v\n", s.description))
if s.subdescription != "" {
writeOrPanic(w, s.subdescription)
writeOrPanic(w, "\n\n")
}
writeOrPanic(w, "Given a sample.lua file of:\n")
writeOrPanic(w, fmt.Sprintf("```lua\n%v\n```\n", s.input))
writeOrPanic(w, "then\n")
writeOrPanic(w, "```bash\nyq '.' sample.lua\n```\n")
writeOrPanic(w, "will output\n")
writeOrPanic(w, fmt.Sprintf("```lua\n%v```\n\n", mustProcessFormatScenario(s, NewLuaDecoder(ConfiguredLuaPreferences), NewLuaEncoder(ConfiguredLuaPreferences))))
}
func TestLuaScenarios(t *testing.T) {
for _, tt := range luaScenarios {
testLuaScenario(t, tt)
}
genericScenarios := make([]interface{}, len(luaScenarios))
for i, s := range luaScenarios {
genericScenarios[i] = s
}
documentScenarios(t, "usage", "lua", genericScenarios, documentLuaScenario)
}