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| /*
| Copyright 2015 The Kubernetes Authors.
|
| Licensed under the Apache License, Version 2.0 (the "License");
| you may not use this file except in compliance with the License.
| You may obtain a copy of the License at
|
| http://www.apache.org/licenses/LICENSE-2.0
|
| Unless required by applicable law or agreed to in writing, software
| distributed under the License is distributed on an "AS IS" BASIS,
| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
| See the License for the specific language governing permissions and
| limitations under the License.
| */
|
| package jsonpath
|
| import (
| "testing"
| )
|
| type parserTest struct {
| name string
| text string
| nodes []Node
| shouldError bool
| }
|
| var parserTests = []parserTest{
| {"plain", `hello jsonpath`, []Node{newText("hello jsonpath")}, false},
| {"variable", `hello {.jsonpath}`,
| []Node{newText("hello "), newList(), newField("jsonpath")}, false},
| {"arrayfiled", `hello {['jsonpath']}`,
| []Node{newText("hello "), newList(), newField("jsonpath")}, false},
| {"quote", `{"{"}`, []Node{newList(), newText("{")}, false},
| {"array", `{[1:3]}`, []Node{newList(),
| newArray([3]ParamsEntry{{1, true, false}, {3, true, false}, {0, false, false}})}, false},
| {"allarray", `{.book[*].author}`,
| []Node{newList(), newField("book"),
| newArray([3]ParamsEntry{{0, false, false}, {0, false, false}, {0, false, false}}), newField("author")}, false},
| {"wildcard", `{.bicycle.*}`,
| []Node{newList(), newField("bicycle"), newWildcard()}, false},
| {"filter", `{[?(@.price<3)]}`,
| []Node{newList(), newFilter(newList(), newList(), "<"),
| newList(), newField("price"), newList(), newInt(3)}, false},
| {"recursive", `{..}`, []Node{newList(), newRecursive()}, false},
| {"recurField", `{..price}`,
| []Node{newList(), newRecursive(), newField("price")}, false},
| {"arraydict", `{['book.price']}`, []Node{newList(),
| newField("book"), newField("price"),
| }, false},
| {"union", `{['bicycle.price', 3, 'book.price']}`, []Node{newList(), newUnion([]*ListNode{}),
| newList(), newField("bicycle"), newField("price"),
| newList(), newArray([3]ParamsEntry{{3, true, false}, {4, true, true}, {0, false, false}}),
| newList(), newField("book"), newField("price"),
| }, false},
| {"range", `{range .items}{.name},{end}`, []Node{
| newList(), newIdentifier("range"), newField("items"),
| newList(), newField("name"), newText(","),
| newList(), newIdentifier("end"),
| }, false},
| {"malformat input", `{\\\}`, []Node{}, true},
| {"paired parentheses in quotes", `{[?(@.status.nodeInfo.osImage == "()")]}`,
| []Node{newList(), newFilter(newList(), newList(), "=="), newList(), newField("status"), newField("nodeInfo"), newField("osImage"), newList(), newText("()")}, false},
| {"paired parentheses in double quotes and with double quotes escape", `{[?(@.status.nodeInfo.osImage == "(\"\")")]}`,
| []Node{newList(), newFilter(newList(), newList(), "=="), newList(), newField("status"), newField("nodeInfo"), newField("osImage"), newList(), newText("(\"\")")}, false},
| {"unregular parentheses in double quotes", `{[?(@.test == "())(")]}`,
| []Node{newList(), newFilter(newList(), newList(), "=="), newList(), newField("test"), newList(), newText("())(")}, false},
| {"plain text in single quotes", `{[?(@.status.nodeInfo.osImage == 'Linux')]}`,
| []Node{newList(), newFilter(newList(), newList(), "=="), newList(), newField("status"), newField("nodeInfo"), newField("osImage"), newList(), newText("Linux")}, false},
| {"test filter suffix", `{[?(@.status.nodeInfo.osImage == "{[()]}")]}`,
| []Node{newList(), newFilter(newList(), newList(), "=="), newList(), newField("status"), newField("nodeInfo"), newField("osImage"), newList(), newText("{[()]}")}, false},
| {"double inside single", `{[?(@.status.nodeInfo.osImage == "''")]}`,
| []Node{newList(), newFilter(newList(), newList(), "=="), newList(), newField("status"), newField("nodeInfo"), newField("osImage"), newList(), newText("''")}, false},
| {"single inside double", `{[?(@.status.nodeInfo.osImage == '""')]}`,
| []Node{newList(), newFilter(newList(), newList(), "=="), newList(), newField("status"), newField("nodeInfo"), newField("osImage"), newList(), newText("\"\"")}, false},
| {"single containing escaped single", `{[?(@.status.nodeInfo.osImage == '\\\'')]}`,
| []Node{newList(), newFilter(newList(), newList(), "=="), newList(), newField("status"), newField("nodeInfo"), newField("osImage"), newList(), newText("\\'")}, false},
| {"negative index slice, equals a[len-5] to a[len-1]", `{[-5:]}`, []Node{newList(),
| newArray([3]ParamsEntry{{-5, true, false}, {0, false, false}, {0, false, false}})}, false},
| {"negative index slice, equals a[len-1]", `{[-1]}`, []Node{newList(),
| newArray([3]ParamsEntry{{-1, true, false}, {0, true, true}, {0, false, false}})}, false},
| {"negative index slice, equals a[1] to a[len-1]", `{[1:-1]}`, []Node{newList(),
| newArray([3]ParamsEntry{{1, true, false}, {-1, true, false}, {0, false, false}})}, false},
| }
|
| func collectNode(nodes []Node, cur Node) []Node {
| nodes = append(nodes, cur)
| switch cur.Type() {
| case NodeList:
| for _, node := range cur.(*ListNode).Nodes {
| nodes = collectNode(nodes, node)
| }
| case NodeFilter:
| nodes = collectNode(nodes, cur.(*FilterNode).Left)
| nodes = collectNode(nodes, cur.(*FilterNode).Right)
| case NodeUnion:
| for _, node := range cur.(*UnionNode).Nodes {
| nodes = collectNode(nodes, node)
| }
| }
| return nodes
| }
|
| func TestParser(t *testing.T) {
| for _, test := range parserTests {
| parser, err := Parse(test.name, test.text)
| if test.shouldError {
| if err == nil {
| t.Errorf("unexpected non-error when parsing %s", test.name)
| }
| continue
| }
| if err != nil {
| t.Errorf("parse %s error %v", test.name, err)
| }
| result := collectNode([]Node{}, parser.Root)[1:]
| if len(result) != len(test.nodes) {
| t.Errorf("in %s, expect to get %d nodes, got %d nodes", test.name, len(test.nodes), len(result))
| t.Error(result)
| }
| for i, expect := range test.nodes {
| if result[i].String() != expect.String() {
| t.Errorf("in %s, %dth node, expect %v, got %v", test.name, i, expect, result[i])
| }
| }
| }
| }
|
| type failParserTest struct {
| name string
| text string
| err string
| }
|
| func TestFailParser(t *testing.T) {
| failParserTests := []failParserTest{
| {"unclosed action", "{.hello", "unclosed action"},
| {"unrecognized character", "{*}", "unrecognized character in action: U+002A '*'"},
| {"invalid number", "{+12.3.0}", "cannot parse number +12.3.0"},
| {"unterminated array", "{[1}", "unterminated array"},
| {"unterminated filter", "{[?(.price]}", "unterminated filter"},
| {"invalid multiple recursive descent", "{........}", "invalid multiple recursive descent"},
| }
| for _, test := range failParserTests {
| _, err := Parse(test.name, test.text)
| var out string
| if err == nil {
| out = "nil"
| } else {
| out = err.Error()
| }
| if out != test.err {
| t.Errorf("in %s, expect to get error %v, got %v", test.name, test.err, out)
| }
| }
| }
|
|
