114 lines
4.3 KiB
Swift
114 lines
4.3 KiB
Swift
import Spectre
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import Stencil
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describe("IfNode") {
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$0.describe("parsing") {
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$0.it("can parse an if block") {
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let tokens = [
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Token.Block(value: "if value"),
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Token.Text(value: "true"),
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Token.Block(value: "else"),
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Token.Text(value: "false"),
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Token.Block(value: "endif")
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]
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let parser = TokenParser(tokens: tokens, namespace: Namespace())
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let nodes = try parser.parse()
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let node = nodes.first as? IfNode
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let trueNode = node?.trueNodes.first as? TextNode
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let falseNode = node?.falseNodes.first as? TextNode
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try expect(nodes.count) == 1
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try expect(node?.variable.variable) == "value"
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try expect(node?.trueNodes.count) == 1
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try expect(trueNode?.text) == "true"
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try expect(node?.falseNodes.count) == 1
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try expect(falseNode?.text) == "false"
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}
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$0.it("can parse an ifnot block") {
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let tokens = [
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Token.Block(value: "ifnot value"),
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Token.Text(value: "false"),
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Token.Block(value: "else"),
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Token.Text(value: "true"),
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Token.Block(value: "endif")
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]
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let parser = TokenParser(tokens: tokens, namespace: Namespace())
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let nodes = try parser.parse()
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let node = nodes.first as? IfNode
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let trueNode = node?.trueNodes.first as? TextNode
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let falseNode = node?.falseNodes.first as? TextNode
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try expect(nodes.count) == 1
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try expect(node?.variable.variable) == "value"
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try expect(node?.trueNodes.count) == 1
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try expect(trueNode?.text) == "true"
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try expect(node?.falseNodes.count) == 1
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try expect(falseNode?.text) == "false"
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}
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$0.it("throws an error when parsing an if block without an endif") {
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let tokens = [
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Token.Block(value: "if value"),
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]
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let parser = TokenParser(tokens: tokens, namespace: Namespace())
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let error = TemplateSyntaxError("`endif` was not found.")
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try expect(try parser.parse()).toThrow(error)
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}
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$0.it("throws an error when parsing an ifnot without an endif") {
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let tokens = [
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Token.Block(value: "ifnot value"),
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]
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let parser = TokenParser(tokens: tokens, namespace: Namespace())
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let error = TemplateSyntaxError("`endif` was not found.")
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try expect(try parser.parse()).toThrow(error)
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}
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}
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$0.describe("rendering") {
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let context = Context(dictionary: ["items": true])
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$0.it("renders the truth when expression evaluates to true") {
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let node = IfNode(variable: "items", trueNodes: [TextNode(text: "true")], falseNodes: [TextNode(text: "false")])
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try expect(try node.render(context)) == "true"
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}
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$0.it("renders the false when expression evaluates to false") {
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let node = IfNode(variable: "unknown", trueNodes: [TextNode(text: "true")], falseNodes: [TextNode(text: "false")])
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try expect(try node.render(context)) == "false"
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}
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$0.it("renders the truth when array expression is not empty") {
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let items: Array<[String:AnyObject]> = [["key":"key1","value":42],["key":"key2","value":1337]]
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let arrayContext = Context(dictionary: ["items": [items]])
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let node = IfNode(variable: "items", trueNodes: [TextNode(text: "true")], falseNodes: [TextNode(text: "false")])
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try expect(try node.render(arrayContext)) == "true"
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}
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$0.it("renders the false when array expression is empty") {
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let emptyItems = Array<[String:AnyObject]>()
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let arrayContext = Context(dictionary: ["items": emptyItems])
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let node = IfNode(variable: "items", trueNodes: [TextNode(text: "true")], falseNodes: [TextNode(text: "false")])
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try expect(try node.render(arrayContext)) == "false"
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}
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$0.it("renders the false when dictionary expression is empty") {
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let emptyItems = [String:AnyObject]()
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let arrayContext = Context(dictionary: ["items": emptyItems])
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let node = IfNode(variable: "items", trueNodes: [TextNode(text: "true")], falseNodes: [TextNode(text: "false")])
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try expect(try node.render(arrayContext)) == "false"
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}
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$0.it("renders false when Array<Any> variable is empty") {
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let arrayContext = Context(dictionary: ["items": ([] as [Any])])
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let node = IfNode(variable: "items", trueNodes: [TextNode(text: "true")], falseNodes: [TextNode(text: "false")])
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try expect(try node.render(arrayContext)) == "false"
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}
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}
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}
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