test: rateQuantity / rateRange / rateRatio

__tests__/fromDosageToText/rateQuantity.test.tsx

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+// For typings autocomplete whatever your IDE
+import { expect, test, describe } from "@jest/globals";
+import FhirDosageUtils from "../../src/index";
+
+// types
+import type { Dosage } from "fhir/r4";
+
+describe("fromDosageToText - rateQuantity", () => {
+  let dosageUtils: FhirDosageUtils;
+
+  beforeAll(async () => {
+    dosageUtils = await FhirDosageUtils.build({
+      displayOrder: ["rateQuantity"],
+    });
+  });
+
+  test("No rateQuantity", () => {
+    const dosage: Dosage = {
+      text: "no rateQuantity",
+    };
+
+    let result = dosageUtils.fromDosageToText(dosage);
+    expect(result).toBe("");
+  });
+
+  test("Empty", () => {
+    const dosage: Dosage = {
+      doseAndRate: [],
+    };
+
+    let result = dosageUtils.fromDosageToText(dosage);
+    expect(result).toBe("");
+  });
+
+  test("Simple case", () => {
+    const dosage: Dosage = {
+      doseAndRate: [
+        {
+          rateQuantity: {
+            value: 3,
+            unit: "pills",
+          },
+        },
+      ],
+    };
+
+    let result = dosageUtils.fromDosageToText(dosage);
+    expect(result).toBe("at a rate of 3 pills");
+  });
+});

__tests__/fromDosageToText/rateRange.test.tsx

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+// For typings autocomplete whatever your IDE
+import { expect, test, describe } from "@jest/globals";
+import FhirDosageUtils from "../../src/index";
+
+// types
+import type { Dosage } from "fhir/r4";
+
+describe("fromDosageToText - rateRange", () => {
+  let dosageUtils: FhirDosageUtils;
+
+  beforeAll(async () => {
+    dosageUtils = await FhirDosageUtils.build({
+      displayOrder: ["rateRange"],
+    });
+  });
+
+  test("No rateRange", () => {
+    const dosage: Dosage = {
+      text: "no rateRange",
+    };
+
+    let result = dosageUtils.fromDosageToText(dosage);
+    expect(result).toBe("");
+  });
+
+  test("high and low", () => {
+    const dosage: Dosage = {
+      doseAndRate: [
+        {
+          rateRange: {
+            low: {
+              value: 3,
+              unit: "pills",
+            },
+            high: {
+              value: 5,
+              unit: "pills",
+            },
+          },
+        },
+      ],
+    };
+
+    let result = dosageUtils.fromDosageToText(dosage);
+    expect(result).toBe("at a rate of 3 to 5 pills");
+  });
+
+  test("high only", () => {
+    const dosage: Dosage = {
+      doseAndRate: [
+        {
+          rateRange: {
+            high: {
+              value: 5,
+              unit: "pills",
+            },
+          },
+        },
+      ],
+    };
+
+    let result = dosageUtils.fromDosageToText(dosage);
+    expect(result).toBe("at a rate of 5 pills");
+  });
+
+  test("low only", () => {
+    const dosage: Dosage = {
+      doseAndRate: [
+        {
+          rateRange: {
+            low: {
+              value: 3,
+              unit: "pills",
+            },
+          },
+        },
+      ],
+    };
+
+    let result = dosageUtils.fromDosageToText(dosage);
+    expect(result).toBe("at a rate of 3 pills");
+  });
+});

__tests__/fromDosageToText/rateRatio.test.tsx

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+// For typings autocomplete whatever your IDE
+import { expect, test, describe } from "@jest/globals";
+import FhirDosageUtils from "../../src/index";
+
+// types
+import type { Dosage } from "fhir/r4";
+
+describe("fromDosageToText - rateRatio", () => {
+  let dosageUtils: FhirDosageUtils;
+
+  beforeAll(async () => {
+    dosageUtils = await FhirDosageUtils.build({
+      displayOrder: ["rateRatio"],
+    });
+  });
+
+  test("No rateRatio", () => {
+    const dosage: Dosage = {
+      text: "no rateRatio",
+    };
+
+    let result = dosageUtils.fromDosageToText(dosage);
+    expect(result).toBe("");
+  });
+
+  test("numerator and denominator", () => {
+    const dosage: Dosage = {
+      doseAndRate: [
+        {
+          rateRatio: {
+            numerator: {
+              value: 3,
+              unit: "pills",
+            },
+            denominator: {
+              value: 5,
+              unit: "hours",
+            },
+          },
+        },
+      ],
+    };
+
+    let result = dosageUtils.fromDosageToText(dosage);
+    expect(result).toBe("at a rate of 3 pills every 5 hours");
+  });
+
+  test("no numerator", () => {
+    const dosage: Dosage = {
+      doseAndRate: [
+        {
+          rateRatio: {
+            denominator: {
+              value: 5,
+              unit: "hours",
+            },
+          },
+        },
+      ],
+    };
+
+    let result = dosageUtils.fromDosageToText(dosage);
+    expect(result).toBe("at a rate of 1  every 5 hours");
+  });
+
+  test("no denominator value", () => {
+    const dosage: Dosage = {
+      doseAndRate: [
+        {
+          rateRatio: {
+            numerator: {
+              value: 3,
+              unit: "pills",
+            },
+            denominator: {
+              unit: "hour",
+            },
+          },
+        },
+      ],
+    };
+
+    let result = dosageUtils.fromDosageToText(dosage);
+    expect(result).toBe("at a rate of 3 pills per hour");
+  });
+});