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image_tools

0.1.3
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A set of simple image tools like rotate an image implemented in Rust

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image_tools test image_tools_test.exs
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test/image_tools_test.exs 

defmodule ImageToolsTest do

  use ExUnit.Case

  import ExUnit.CaptureIO



  @test_image File.read!(Path.join(__DIR__, "assets/sample.jpg"))



  test "create_thumbnail/4 creates a thumbnail successfully" do

    assert {:ok, binary} = ImageTools.create_thumbnail(@test_image, 320, 240)

    assert is_binary(binary)

  end



  test "create_thumbnail/4 handles quality option" do

    assert {:ok, binary} = ImageTools.create_thumbnail(@test_image, 320, 240, quality: 50)

    assert is_binary(binary)

  end



  test "create_thumbnail/4 handles target_size option" do

    assert {:ok, binary} = ImageTools.create_thumbnail(@test_image, 320, 240, target_size: 12_000)

    assert is_binary(binary)

  end



  test "create_thumbnail/4 handles invalid input" do

    assert {:error, "width must be > 0"} = ImageTools.create_thumbnail(@test_image, 0, 240)

    assert {:error, "height must be > 0"} = ImageTools.create_thumbnail(@test_image, 320, 0)

    assert {:error, "quality must be >= 0"} = ImageTools.create_thumbnail(@test_image, 320, 240, quality: -1)

    assert {:error, "quality must be <= 100"} = ImageTools.create_thumbnail(@test_image, 320, 240, quality: 101)

    assert {:error, "target_size must be > 0"} = ImageTools.create_thumbnail(@test_image, 320, 240, target_size: 0)

  end

end