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feat(for tag): Support where expressions (#96)

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This commit is contained in:
Ilya Puchka
2017-04-11 12:39:00 +02:00
committed by Kyle Fuller
parent dc8759ba34
commit d1717df6ff
4 changed files with 60 additions and 16 deletions
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15
Tests/StencilTests/ForNodeSpec.swift
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@@ -63,6 +63,21 @@ func testForNode() {
try expect(try node.render(context)) == "112233"
}
$0.it("renders the given nodes while filtering items using where expression") {
let nodes: [NodeType] = [VariableNode(variable: "item"), VariableNode(variable: "forloop.counter")]
let `where` = try parseExpression(components: ["item", ">", "1"], tokenParser: TokenParser(tokens: [], environment: Environment()))
let node = ForNode(resolvable: Variable("items"), loopVariable: "item", nodes: nodes, emptyNodes: [], where: `where`)
try expect(try node.render(context)) == "2132"
}
$0.it("renders the given empty nodes when all items filtered out with where expression") {
let nodes: [NodeType] = [VariableNode(variable: "item")]
let emptyNodes: [NodeType] = [TextNode(text: "empty")]
let `where` = try parseExpression(components: ["item", "==", "0"], tokenParser: TokenParser(tokens: [], environment: Environment()))
let node = ForNode(resolvable: Variable("emptyItems"), loopVariable: "item", nodes: nodes, emptyNodes: emptyNodes, where: `where`)
try expect(try node.render(context)) == "empty"
}
$0.it("can render a filter") {
let templateString = "{% for article in ars|default:articles %}" +
"- {{ article.title }} by {{ article.author }}.\n" +