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feat: Support filters in if expressions

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Closes #90
This commit is contained in:
Kyle Fuller
2017-01-05 20:56:09 +00:00
parent 39517b7514
commit 99efba56e9
5 changed files with 42 additions and 23 deletions
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24
Tests/StencilTests/ExpressionSpec.swift
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@@ -4,6 +4,8 @@ import Spectre
func testExpressions() {
describe("Expression") {
let parser = TokenParser(tokens: [], environment: Environment())
$0.describe("VariableExpression") {
let expression = VariableExpression(variable: Variable("value"))
@@ -103,19 +105,19 @@ func testExpressions() {
$0.describe("expression parsing") {
$0.it("can parse a variable expression") {
let expression = try parseExpression(components: ["value"])
let expression = try parseExpression(components: ["value"], tokenParser: parser)
try expect(expression.evaluate(context: Context())).to.beFalse()
try expect(expression.evaluate(context: Context(dictionary: ["value": true]))).to.beTrue()
}
$0.it("can parse a not expression") {
let expression = try parseExpression(components: ["not", "value"])
let expression = try parseExpression(components: ["not", "value"], tokenParser: parser)
try expect(expression.evaluate(context: Context())).to.beTrue()
try expect(expression.evaluate(context: Context(dictionary: ["value": true]))).to.beFalse()
}
$0.describe("and expression") {
let expression = try! parseExpression(components: ["lhs", "and", "rhs"])
let expression = try! parseExpression(components: ["lhs", "and", "rhs"], tokenParser: parser)
$0.it("evaluates to false with lhs false") {
try expect(expression.evaluate(context: Context(dictionary: ["lhs": false, "rhs": true]))).to.beFalse()
@@ -135,7 +137,7 @@ func testExpressions() {
}
$0.describe("or expression") {
let expression = try! parseExpression(components: ["lhs", "or", "rhs"])
let expression = try! parseExpression(components: ["lhs", "or", "rhs"], tokenParser: parser)
$0.it("evaluates to true with lhs true") {
try expect(expression.evaluate(context: Context(dictionary: ["lhs": true, "rhs": false]))).to.beTrue()
@@ -155,7 +157,7 @@ func testExpressions() {
}
$0.describe("equality expression") {
let expression = try! parseExpression(components: ["lhs", "==", "rhs"])
let expression = try! parseExpression(components: ["lhs", "==", "rhs"], tokenParser: parser)
$0.it("evaluates to true with equal lhs/rhs") {
try expect(expression.evaluate(context: Context(dictionary: ["lhs": "a", "rhs": "a"]))).to.beTrue()
@@ -191,7 +193,7 @@ func testExpressions() {
}
$0.describe("inequality expression") {
let expression = try! parseExpression(components: ["lhs", "!=", "rhs"])
let expression = try! parseExpression(components: ["lhs", "!=", "rhs"], tokenParser: parser)
$0.it("evaluates to true with inequal lhs/rhs") {
try expect(expression.evaluate(context: Context(dictionary: ["lhs": "a", "rhs": "b"]))).to.beTrue()
@@ -203,7 +205,7 @@ func testExpressions() {
}
$0.describe("more than expression") {
let expression = try! parseExpression(components: ["lhs", ">", "rhs"])
let expression = try! parseExpression(components: ["lhs", ">", "rhs"], tokenParser: parser)
$0.it("evaluates to true with lhs > rhs") {
try expect(expression.evaluate(context: Context(dictionary: ["lhs": 5.0, "rhs": 4]))).to.beTrue()
@@ -215,7 +217,7 @@ func testExpressions() {
}
$0.describe("more than equal expression") {
let expression = try! parseExpression(components: ["lhs", ">=", "rhs"])
let expression = try! parseExpression(components: ["lhs", ">=", "rhs"], tokenParser: parser)
$0.it("evaluates to true with lhs == rhs") {
try expect(expression.evaluate(context: Context(dictionary: ["lhs": 5.0, "rhs": 5]))).to.beTrue()
@@ -227,7 +229,7 @@ func testExpressions() {
}
$0.describe("less than expression") {
let expression = try! parseExpression(components: ["lhs", "<", "rhs"])
let expression = try! parseExpression(components: ["lhs", "<", "rhs"], tokenParser: parser)
$0.it("evaluates to true with lhs < rhs") {
try expect(expression.evaluate(context: Context(dictionary: ["lhs": 4, "rhs": 4.5]))).to.beTrue()
@@ -239,7 +241,7 @@ func testExpressions() {
}
$0.describe("less than equal expression") {
let expression = try! parseExpression(components: ["lhs", "<=", "rhs"])
let expression = try! parseExpression(components: ["lhs", "<=", "rhs"], tokenParser: parser)
$0.it("evaluates to true with lhs == rhs") {
try expect(expression.evaluate(context: Context(dictionary: ["lhs": 5.0, "rhs": 5]))).to.beTrue()
@@ -251,7 +253,7 @@ func testExpressions() {
}
$0.describe("multiple expression") {
let expression = try! parseExpression(components: ["one", "or", "two", "and", "not", "three"])
let expression = try! parseExpression(components: ["one", "or", "two", "and", "not", "three"], tokenParser: parser)
$0.it("evaluates to true with one") {
try expect(expression.evaluate(context: Context(dictionary: ["one": true]))).to.beTrue()