Added profile tissues tests

projects/planner/src/app/workers/planning.tasks.ts

@@ -55,7 +55,8 @@ export class PlanningTasks {
         const averageDepth = Segments.averageDepth(originalProfile);
 
         const profileTissues = new ProfileTissues();
-        const surfaceGradient = profileTissues.surfaceGradient(parameters.surfaceInterval.previousTissues);
+        const loadedTissues = parameters.surfaceInterval.previousTissues;
+        const surfaceGradient = profileTissues.surfaceGradient(loadedTissues, depthConverter.surfacePressure);
         const offgasingStart = profileTissues.offgasingStart([]); // TODO fill the overpressures parameter
 
         return {

projects/scuba-physics/src/lib/ProfileTissues.spec.ts

@@ -0,0 +1,33 @@
+import { ProfileTissues } from "./ProfileTissues";
+import { LoadSegment, Tissues } from "./Tissues";
+import { StandardGases } from "./StandardGases";
+import { Time } from "./Time";
+
+describe('Profile tissues', () => {
+    const sut = new ProfileTissues();
+    const surfacePressure = 1;
+
+    xdescribe('Surface gradient', () => {
+        it('Not loaded at surface Is 0 %', () => {
+            const loadedTissues = Tissues.create(surfacePressure).finalState();
+            const result = sut.surfaceGradient(loadedTissues, surfacePressure);
+            expect(result).toBe(0);
+        });
+
+        it('Is XX % when loaded', () => {
+            const loadSegment = new LoadSegment(2, Time.oneMinute * 20, 0);
+            const tissues = Tissues.create(surfacePressure);
+            tissues.load(loadSegment, StandardGases.air);
+            const loadedTissues = tissues.finalState();
+            const result = sut.surfaceGradient(loadedTissues, surfacePressure);
+            expect(result).toBe(0);
+        });
+
+        it('Loaded at altitude is still 0 %', () => {
+            const altitudePressure = 0.8;
+            const loadedTissues = Tissues.create(altitudePressure).finalState();
+            const result = sut.surfaceGradient(loadedTissues, surfacePressure);
+            expect(result).toBe(0);
+        });
+    });
+});

projects/scuba-physics/src/lib/Tissues.ts

@@ -336,8 +336,10 @@ export class Tissues {
      * @param ambientPressure in bars (e.g. surface or ambient).
      */
     public gradientFactor(ambientPressure: number): number {
-        // TODO implement gradient factor for tissues
-        return 0;
+        const maxGradient = _(this._compartments)
+            .map(t => t.gradientFactor(ambientPressure))
+            .max() || 0;
+        return maxGradient;
     }
 }