Add test cases for task 5 (see #5)

petervanhoef · Mar 21, 2017 · 1e8f59a · 1e8f59a
1 parent fe71ae4
commit 1e8f59a
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diff --git a/Calculator/Calculator/CalculatorBrain.swift b/Calculator/Calculator/CalculatorBrain.swift
@@ -84,4 +84,6 @@ struct CalculatorBrain {
             return accumulator
         }
     }
+
+    var resultIsPending: Bool = false
 }
diff --git a/Calculator/CalculatorTests/CalculatorBrainTests.swift b/Calculator/CalculatorTests/CalculatorBrainTests.swift
@@ -86,4 +86,17 @@ class CalculatorBrainTests: XCTestCase {
         testBrain.performOperation("x⁻¹")
         XCTAssertEqual(testBrain.result, 0.25)
     }
+
+    func testResultIsPendingTask5() {
+        var testBrain = CalculatorBrain()
+
+        testBrain.setOperand(4)
+        XCTAssertFalse(testBrain.resultIsPending)
+        testBrain.performOperation("+")
+        XCTAssertTrue(testBrain.resultIsPending)
+        testBrain.setOperand(9)
+        testBrain.performOperation("=")
+        XCTAssertFalse(testBrain.resultIsPending)
+        XCTAssertEqual(testBrain.result, 13)
+    }
 }
-Original file line number
+Diff line change
@@ Expand Up / @@ -84,4 +84,6 @@ struct CalculatorBrain { @@
                 return accumulator
             }
         }
+        var resultIsPending: Bool = false
     }