examples/general/calc_iter2/spec/calculator_spec.rb in rley-0.5.06 vs examples/general/calc_iter2/spec/calculator_spec.rb in rley-0.5.07

@@ -166,13 +166,23 @@
       expect_expr('2*(1/(1+3))').to eq(0.5)
     end
     
     # Some special functions
     it 'should evaluate square root of expressions' do
+      expect_expr('sqrt(0)').to eq(0)
+      expect_expr('sqrt(1)').to eq(1)
       expect_expr('sqrt(1 + 1)').to eq(Math.sqrt(2))
-    end 
+      expect_expr('sqrt(5 * 5)').to eq(5)
+    end
 
+    it 'should evaluate cubic root of expressions' do
+      expect_expr('cbrt(0)').to eq(0)
+      expect_expr('cbrt(1)').to eq(1)
+      expect_expr('cbrt(1 + 1)').to eq(Math.cbrt(2))
+      expect_expr('cbrt(5 * 5 * 5)').to eq(5)
+    end     
+
     it 'should evaluate exponential of expressions' do
       expect_expr('exp(-1)').to eq(1/Math::E)    
       expect_expr('exp(0)').to eq(1)
       expect_expr('exp(1)').to eq(Math::E)
       expect_expr('exp(2)').to be_within(0.0000000001).of(Math::E * Math::E)
@@ -181,10 +191,17 @@
     it 'should evaluate natural logarithm of expressions' do
       expect_expr('ln(1/E)').to eq(-1)    
       expect_expr('ln(1)').to eq(0)    
       expect_expr('ln(E)').to eq(1)
       expect_expr('ln(E * E)').to eq(2)
-    end     
+    end 
+
+    it 'should evaluate the logarithm base 10 of expressions' do
+      expect_expr('log(1/10)').to eq(-1)    
+      expect_expr('log(1)').to eq(0)    
+      expect_expr('log(10)').to eq(1)
+      expect_expr('log(10 * 10 * 10)').to eq(3)
+    end    
  
     # Trigonometric functions
     
     it 'should compute the sinus of an expression' do
       expect_expr('sin(0)').to eq(0)