Initial tests for LineChartView

ChartsDemo/ChartsDemo.xcodeproj/project.pbxproj

@@ -7,6 +7,7 @@
 	objects = {
 
 /* Begin PBXBuildFile section */
+		50392B241BB7366C002235E5 /* LineChartViewSpec.swift in Sources */ = {isa = PBXBuildFile; fileRef = 50392B231BB7366C002235E5 /* LineChartViewSpec.swift */; settings = {ASSET_TAGS = (); }; };
 		55E356501ADC638F00A57971 /* BubbleChartViewController.xib in Resources */ = {isa = PBXBuildFile; fileRef = 55E3564D1ADC638F00A57971 /* BubbleChartViewController.xib */; };
 		55E356511ADC638F00A57971 /* BubbleChartViewController.m in Sources */ = {isa = PBXBuildFile; fileRef = 55E3564F1ADC638F00A57971 /* BubbleChartViewController.m */; };
 		5B0CC7851ABB875400665592 /* PieChartViewController.m in Sources */ = {isa = PBXBuildFile; fileRef = 5B0CC7831ABB875400665592 /* PieChartViewController.m */; };
@@ -107,6 +108,7 @@
 /* End PBXCopyFilesBuildPhase section */
 
 /* Begin PBXFileReference section */
+		50392B231BB7366C002235E5 /* LineChartViewSpec.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = LineChartViewSpec.swift; sourceTree = "<group>"; };
 		5054F01C1BB72FE50038506D /* ChartsTests.xctest */ = {isa = PBXFileReference; explicitFileType = wrapper.cfbundle; includeInIndex = 0; path = ChartsTests.xctest; sourceTree = BUILT_PRODUCTS_DIR; };
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 		55E3564D1ADC638F00A57971 /* BubbleChartViewController.xib */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = file.xib; path = BubbleChartViewController.xib; sourceTree = "<group>"; };
@@ -233,9 +235,18 @@
 			name = Pods;
 			sourceTree = "<group>";
 		};
+		50392B221BB7366C002235E5 /* Charts */ = {
+			isa = PBXGroup;
+			children = (
+				50392B231BB7366C002235E5 /* LineChartViewSpec.swift */,
+			);
+			path = Charts;
+			sourceTree = "<group>";
+		};
 		5054F01D1BB72FE50038506D /* ChartsTests */ = {
 			isa = PBXGroup;
 			children = (
+				50392B221BB7366C002235E5 /* Charts */,
 				5054F0201BB72FE50038506D /* Info.plist */,
 			);
 			path = ChartsTests;
@@ -605,6 +616,7 @@
 			isa = PBXSourcesBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
+				50392B241BB7366C002235E5 /* LineChartViewSpec.swift in Sources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};

ChartsDemo/ChartsTests/Charts/LineChartViewSpec.swift

@@ -0,0 +1,69 @@
+//
+//  LineChartViewSpec.swift
+//  ChartsDemo
+//
+//  Created by Victor Ilyukevich on 9/26/15.
+//  Copyright © 2015 dcg. All rights reserved.
+//
+
+import Quick
+import Nimble
+import Nimble_Snapshots
+import UIKit
+import Charts
+
+class LineChartViewSpec: QuickSpec {
+  override func spec() {
+    describe("line chart", {
+      context("with positive values", {
+        var chartView: LineChartView!
+
+        beforeEach({
+          // Sample data
+          let values: [Double] = [8, 104, 81, 93, 52, 44, 97, 101, 75, 28,
+                                  76, 25, 20, 13, 52, 44, 57, 23, 45, 91,
+                                  99, 14, 84, 48, 40, 71, 106, 41, 45, 61]
+
+          var entries: [ChartDataEntry] = Array()
+          var xValues: [String] = Array()
+
+          for (i, value) in values.enumerate() {
+            entries.append(ChartDataEntry.init(value: value, xIndex: i))
+            xValues.append("\(i)")
+          }
+
+          let dataSet = LineChartDataSet.init(yVals: entries, label: "First unit test data")
+          let data = LineChartData.init(xVals: xValues, dataSet: dataSet)
+
+          chartView = LineChartView.init(frame: CGRectMake(0, 0, 480, 350))
+          chartView.data = data
+        })
+
+        it("is with default values") {
+          expect(chartView).to(haveValidSnapshot())
+        }
+
+        it("hides values") {
+          chartView.data?.dataSets.first?.drawValuesEnabled = false
+          expect(chartView).to(haveValidSnapshot())
+        }
+
+        it("is filled") {
+          chartView.data?.dataSets.first?.drawValuesEnabled = true
+          expect(chartView).to(haveValidSnapshot())
+        }
+
+        it("does not draw circles") {
+          (chartView.data?.dataSets.first as! LineChartDataSet).drawCirclesEnabled = false
+          expect(chartView).to(haveValidSnapshot())
+        }
+
+        it("is cubic") {
+          (chartView.data?.dataSets.first as! LineChartDataSet).drawCubicEnabled = true
+          expect(chartView).to(haveValidSnapshot())
+        }
+
+      })
+    });
+  }
+}