Add HyperFormula#numberOfSheets()

handsontable · Nov 22, 2019 · 2ec72e0 · 2ec72e0
1 parent 6e59469
commit 2ec72e0
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diff --git a/src/HyperFormula.ts b/src/HyperFormula.ts
@@ -534,6 +534,13 @@ export class HyperFormula {
     return this.sheetMapping.hasSheetWithName(sheetName)
   }
 
+  /**
+   * Returns number of existing sheets
+   */
+  public numberOfSheets(): number {
+    return this.sheetMapping.numberOfSheets()
+  }
+
   /**
    * Run multiple operations and recompute formulas at the end
    *

diff --git a/test/engine.spec.ts b/test/engine.spec.ts
@@ -184,4 +184,18 @@ describe('Integration', () => {
 
     expect(engine.doesSheetExist('foobar')).toBe(false)
   })
+
+  it('#numberOfSheets for zero', () => {
+    const engine = HyperFormula.buildEmpty()
+
+    expect(engine.numberOfSheets()).toBe(0)
+  })
+
+  it('#numberOfSheets', () => {
+    const engine = HyperFormula.buildEmpty()
+
+    engine.addSheet('foo')
+
+    expect(engine.numberOfSheets()).toBe(1)
+  })
 })