Debugging Code Checkpoint

_output

"Hello World"
"Hello Bob"

```Bloc Output
INCOMPLETE METHOD
```
 **hello returns a full greeting for Abraham Lincoln**
```
ArgumentError
wrong number of arguments (2 for 0)
exercise.rb:1:in `hello'

exercise.rb:7:in `block (2 levels) in <top (required)>'
```

**hello returns a full greeting for George Washington**
```
ArgumentError
wrong number of arguments (2 for 0)
exercise.rb:1:in `hello'

exercise.rb:10:in `block (2 levels) in <top (required)>'
```

```Bloc Output
WRONG # OF ARGUMENTS
```
**hello returns a full greeting for Abraham Lincoln**
```
ArgumentError
wrong number of arguments (2 for 3)
exercise.rb:1:in `hello'

exercise.rb:7:in `block (2 levels) in <top (required)>'
```
 **hello returns a full greeting for George Washington**
```
ArgumentError
wrong number of arguments (2 for 3)
exercise.rb:1:in `hello'

exercise.rb:10:in `block (2 levels) in <top (required)>'
```
```Bloc Output
CORRECT METHOD
```
 hello returns a full greeting for Abraham Lincoln
 hello returns a full greeting for George Washington
 
```Bloc Output
NO NAME ERROR
```
**hello should return 'Hello first name last name'**
```
NoMethodError
undefined method `hello' for #<RSpec::Core::ExampleGroup::Nested_1:0x007f53c92185d0>
exercise_spec.rb:5:in `block (2 levels) in <top (required)>'
```

```Bloc Output
NO NAME ERROR - CORRECTED
```
hello should return 'Hello first name last name'

```Bloc Output
TYPE ERROR
```
**add returns a string with 1 and 2 added**
```
TypeError
String can't be coerced into Fixnum
exercise.rb:2:in `+'

exercise.rb:2:in `add'

exercise.rb:9:in `block (2 levels) in <top (required)>'
```
**add returns a string with 5 and 7 added**
```
TypeError
String can't be coerced into Fixnum
exercise.rb:2:in `+'

exercise.rb:2:in `add'

exercise.rb:12:in `block (2 levels) in <top (required)>'
```
```Bloc Output
TYPE ERROR - CORRECTED
```
 add returns a string with 1 and 2 added
 add returns a string with 5 and 7 added
 
 ```Bloc Output
 UNEXPECTED END
 ```
 exercise_spec.rb:2:in `require': exercise.rb:8: syntax error, unexpected end-of-input, expecting keyword_end (SyntaxError)
	from exercise_spec.rb:2:in `<top (required)>'
	
	 ```Bloc Output
 UNEXPECTED END - CORRECTED
 ```
  hello should return 'Hello World'
 

Debugging Code Checkpoint

# NO METHOD ERROR

def hello(name)
  p "Hello #{name}"
end
  

describe "hello" do
  it "should return 'Hello World' when passed 'World'" do
    hello("World").should eq("Hello World")
  end
  it "should return 'Hello Bob' when passed 'Bob'" do
    hello("Bob").should eq("Hello Bob")
  end
end

# WRONG NUMBER OF ARGUMENTS

def hello
""
end

describe "hello" do
  it "returns a full greeting for Abraham Lincoln" do
    hello("Abraham", "Lincoln").should eq("Hello Abraham Lincoln")
  end
  it "returns a full greeting for George Washington" do
    hello("George", "Washington").should eq("Hello George Washington")
  end
end

# WROTE OUT THE METHOD w/ WRONG NUM OF ARGUMENTS

def hello(fist, last, middle)
"Hello #{first} #{last}"
end

describe "hello" do
  it "returns a full greeting for Abraham Lincoln" do
    hello("Abraham", "Lincoln").should eq("Hello Abraham Lincoln")
  end
  it "returns a full greeting for George Washington" do
    hello("George", "Washington").should eq("Hello George Washington")
  end
end

# CORRECTED THE METHOD

def hello(first, last)
"Hello #{first} #{last}"
end

describe "hello" do
  it "returns a full greeting for Abraham Lincoln" do
    hello("Abraham", "Lincoln").should eq("Hello Abraham Lincoln")
  end
  it "returns a full greeting for George Washington" do
    hello("George", "Washington").should eq("Hello George Washington")
  end
end

### NO NAME ERROR ###

#Error

def hello(first, last)
  "Hello #{firs} #{last}"
  end
  

describe "hello" do
  it "should return 'Hello first name last name'" do
    hello("Steve", "Jobs").should eq("Hello Steve Jobs")
  end
end

#corrected

def hello(first, last)
  "Hello #{first} #{last}"
  end
  

describe "hello" do
  it "should return 'Hello first name last name'" do
    hello("Steve", "Jobs").should eq("Hello Steve Jobs")
  end
end

## TYPE ERROR

# ERROR CODE
def add(a,b)
  a + " plus " + b
end

describe "add" do
  it "returns a string with 1 and 2 added" do
    add(1,2).should eq("1 + 2 = 3")
  end
  it "returns a string with 5 and 7 added" do
    add(5,7).should eq("5 + 7 = 12")
  end
end

# CORRECTED CODE
def add(a,b)
  "#{a} + #{b} = #{a+b}" 
end

describe "add" do
  it "returns a string with 1 and 2 added" do
    add(1,2).should eq("1 + 2 = 3")
  end
  it "returns a string with 5 and 7 added" do
    add(5,7).should eq("5 + 7 = 12")
  end
end

## UNEXPECTED END

# ERROR CODE
def hello
  "Hello World"

describe "hello" do
  it "should return 'Hello World'" do
    hello.should eq("Hello World")
  end
end

# CORRECTED CODE
def hello
  "Hello World"
end

describe "hello" do
  it "should return 'Hello World'" do
    hello.should eq("Hello World")
  end
end