1 files changed, 99 insertions, 0 deletions
diff --git a/tests/web/easypiechart.percentage.spec.js b/tests/web/easypiechart.percentage.spec.js
new file mode 100644
index 0000000000..9a48390991
--- /dev/null
+++ b/tests/web/easypiechart.percentage.spec.js
@@ -0,0 +1,99 @@
+"use strict";
+
+
+describe("percentage calculations for easy pie charts with dynamic range", function () {
+
+    it("should return positive value, if value greater than dynamic max", function () {
+        var state = createState(null, null);
+
+        var result = NETDATA.easypiechartPercentFromValueMinMax(state, 6, 2, 10);
+
+        expect(result).toBe(60);
+    });
+
+    it("should return negative value, if value lesser than dynamic min", function () {
+        var state = createState(null, null);
+
+        var result = NETDATA.easypiechartPercentFromValueMinMax(state, -6, -10, 10);
+
+        expect(result).toBe(-60);
+    });
+
+    it("should return 0.1 if value is zero and min/max undefined", function () {
+        var state = createState(null, null);
+
+        var result = NETDATA.easypiechartPercentFromValueMinMax(state, 0, -1, 2);
+
+        expect(result).toBe(0.1);
+    });
+
+    it("should return positive value, if max is user-defined", function () {
+        var state = createState(null, 50);
+
+        var result = NETDATA.easypiechartPercentFromValueMinMax(state, 46, -40, 50);
+
+        expect(result).toBe(92);
+    });
+
+    it("should return negative value, if min is user-defined", function () {
+        var state = createState(-50, null);
+
+        var result = NETDATA.easypiechartPercentFromValueMinMax(state, -46, -50, 40);
+
+        expect(result).toBe(-92);
+    });
+
+});
+
+describe("percentage calculations for easy pie charts with fixed range", function () {
+
+    it("should return positive value, if min and max are user-defined", function () {
+        var state = createState(40, 50);
+
+        var result = NETDATA.easypiechartPercentFromValueMinMax(state, 46, 40, 50);
+
+        expect(result).toBe(60);
+    });
+
+    it("should return 100 if positive min and max are user-defined, but value is greater than max", function () {
+        var state = createState(40, 50);
+
+        var result = NETDATA.easypiechartPercentFromValueMinMax(state, 60, 40, 50);
+
+        expect(result).toBe(100);
+    });
+
+    it("should return 0.1 if positive min and max are user-defined, but value is smaller than min", function () {
+        var state = createState(40, 50);
+
+        var result = NETDATA.easypiechartPercentFromValueMinMax(state, 39.9, 42, 48);
+
+        expect(result).toBe(0.1);
+    });
+
+    it("should return -100 if negative min and max are user-defined, but value is smaller than min", function () {
+        var state = createState(-40, -50);
+
+        var result = NETDATA.easypiechartPercentFromValueMinMax(state, -50.1, -40, -50);
+
+        expect(result).toBe(-100);
+    });
+
+    it("should return 0.1 if negative min and max are user-defined, but value is smaller than min", function () {
+        var state = createState(-40, -50);
+
+        var result = NETDATA.easypiechartPercentFromValueMinMax(state, -50.1, -20, -45);
+
+        expect(result).toBe(-100);
+    });
+});
+
+function createState(min, max) {
+    // create a fake state with only the needed properties.
+    return {
+        tmp: {
+            easyPieChartMin: min,
+            easyPieChartMax: max
+        }
+    };
+}
+\ No newline at end of file