112 lines
4.2 KiB
Swift
112 lines
4.2 KiB
Swift
import Spectre
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@testable import Stencil
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import XCTest
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final class NodeTests: XCTestCase {
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private let context = Context(dictionary: [
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"name": "Kyle",
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"age": 27,
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"items": [1, 2, 3]
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])
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func testTextNode() {
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it("renders the given text") {
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let node = TextNode(text: "Hello World")
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try expect(try node.render(self.context)) == "Hello World"
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}
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it("Trims leading whitespace") {
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let text = " \n Some text "
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let trimBehaviour = TrimBehaviour(leading: .whitespace, trailing: .nothing)
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let node = TextNode(text: text, trimBehaviour: trimBehaviour)
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try expect(try node.render(self.context)) == "\n Some text "
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}
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it("Trims leading whitespace and one newline") {
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let text = "\n\n Some text "
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let trimBehaviour = TrimBehaviour(leading: .whitespaceAndOneNewLine, trailing: .nothing)
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let node = TextNode(text: text, trimBehaviour: trimBehaviour)
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try expect(try node.render(self.context)) == "\n Some text "
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}
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it("Trims leading whitespace and one newline") {
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let text = "\n\n Some text "
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let trimBehaviour = TrimBehaviour(leading: .whitespaceAndNewLines, trailing: .nothing)
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let node = TextNode(text: text, trimBehaviour: trimBehaviour)
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try expect(try node.render(self.context)) == "Some text "
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}
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it("Trims trailing whitespace") {
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let text = " Some text \n"
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let trimBehaviour = TrimBehaviour(leading: .nothing, trailing: .whitespace)
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let node = TextNode(text: text, trimBehaviour: trimBehaviour)
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try expect(try node.render(self.context)) == " Some text\n"
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}
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it("Trims trailing whitespace and one newline") {
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let text = " Some text \n \n "
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let trimBehaviour = TrimBehaviour(leading: .nothing, trailing: .whitespaceAndOneNewLine)
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let node = TextNode(text: text, trimBehaviour: trimBehaviour)
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try expect(try node.render(self.context)) == " Some text \n "
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}
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it("Trims trailing whitespace and newlines") {
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let text = " Some text \n \n "
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let trimBehaviour = TrimBehaviour(leading: .nothing, trailing: .whitespaceAndNewLines)
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let node = TextNode(text: text, trimBehaviour: trimBehaviour)
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try expect(try node.render(self.context)) == " Some text"
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}
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it("Trims all whitespace") {
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let text = " \n \nSome text \n "
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let trimBehaviour = TrimBehaviour(leading: .whitespaceAndNewLines, trailing: .whitespaceAndNewLines)
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let node = TextNode(text: text, trimBehaviour: trimBehaviour)
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try expect(try node.render(self.context)) == "Some text"
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}
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}
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func testVariableNode() {
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it("resolves and renders the variable") {
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let node = VariableNode(variable: Variable("name"))
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try expect(try node.render(self.context)) == "Kyle"
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}
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it("resolves and renders a non string variable") {
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let node = VariableNode(variable: Variable("age"))
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try expect(try node.render(self.context)) == "27"
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}
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}
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func testRendering() {
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it("renders the nodes") {
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let nodes: [NodeType] = [
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TextNode(text: "Hello "),
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VariableNode(variable: "name")
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]
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try expect(try renderNodes(nodes, self.context)) == "Hello Kyle"
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}
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it("correctly throws a nodes failure") {
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let nodes: [NodeType] = [
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TextNode(text: "Hello "),
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VariableNode(variable: "name"),
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ErrorNode()
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]
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try expect(try renderNodes(nodes, self.context)).toThrow(TemplateSyntaxError("Custom Error"))
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}
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}
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func testRenderingBooleans() {
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it("can render true & false") {
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try expect(Template(templateString: "{{ true }}").render()) == "true"
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try expect(Template(templateString: "{{ false }}").render()) == "false"
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}
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it("can resolve variable") {
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let template = Template(templateString: "{{ value == \"known\" }}")
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try expect(template.render(["value": "known"])) == "true"
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try expect(template.render(["value": "unknown"])) == "false"
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}
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it("can render a boolean expression") {
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try expect(Template(templateString: "{{ 1 > 0 }}").render()) == "true"
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try expect(Template(templateString: "{{ 1 == 2 }}").render()) == "false"
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}
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}
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}
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