Implementing function to read FIT file header

src/FIT.jl

@@ -1,5 +1,9 @@
 module FIT
 
-# Write your package code here.
+export greet_package
+export read_header
+include("functions.jl")
+include("header.jl")
 
 end
+

src/functions.jl

@@ -0,0 +1,3 @@
+function greet_package()
+    print("Hello package")
+end

src/header.jl

@@ -0,0 +1,13 @@
+struct FITHeader
+    sz::UInt8
+end
+
+"""
+    read_header(fit_file::IOStream)
+
+Read the header of the given fit file, and return a FITHeader struct
+"""
+function read_header(fit_file::IOStream)::FITHeader
+    sz = read(fit_file, 1; all=false)
+    FITHeader(sz[1])
+end

test/runtests.jl

@@ -3,4 +3,5 @@ using Test
 
 @testset "FIT.jl" begin
     # Write your tests here.
+    @test FIT.greet_package() == "Hello package"
 end