r3bl_tui 0.1.0

/*
 *   Copyright (c) 2022 R3BL LLC
 *   All rights reserved.
 *
 *   Licensed under the Apache License, Version 2.0 (the "License");
 *   you may not use this file except in compliance with the License.
 *   You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 *   Unless required by applicable law or agreed to in writing, software
 *   distributed under the License is distributed on an "AS IS" BASIS,
 *   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *   See the License for the specific language governing permissions and
 *   limitations under the License.
 */

#[cfg(test)]
mod tests {
  use r3bl_rs_utils_core::*;

  use crate::*;

  #[test]
  fn test_create_render_pipeline() {
    // Single pipeline.
    let mut pipeline = render_pipeline!(@new_empty);

    render_pipeline!(@push_into pipeline at ZOrder::Normal =>
      RenderOp::ClearScreen,
      RenderOp::ResetColor
    );

    assert_eq2!(pipeline.len(), 1);
    let z_order_len = pipeline.get(&ZOrder::Normal).unwrap().len();
    assert_eq2!(z_order_len, 2);

    let first_item = pipeline.get(&ZOrder::Normal).unwrap().first().unwrap();
    assert_eq2!(first_item, &RenderOp::ClearScreen);

    let last_item = pipeline.get(&ZOrder::Normal).unwrap().last().unwrap();
    assert_eq2!(last_item, &RenderOp::ResetColor);

    // Merge multiple pipelines.
    let pipeline_1: RenderPipeline = {
      let mut p = render_pipeline!(@new ZOrder::Normal
        =>
          RenderOp::ClearScreen,
          RenderOp::ResetColor
      );
      render_pipeline!(@push_into p at ZOrder::Caret =>
        RenderOp::ResetColor
      );
      p
    };

    let pipeline_2: RenderPipeline = render_pipeline!(@new ZOrder::Normal
      =>
        RenderOp::ClearScreen,
        RenderOp::ResetColor
    );

    let pipeline_merged = render_pipeline!(@join_and_drop pipeline_1, pipeline_2);
    assert_eq2!(pipeline_merged.len(), 2);
    assert_eq2!(pipeline_merged.get(&ZOrder::Normal).unwrap().len(), 4);
    assert_eq2!(pipeline_merged.get(&ZOrder::Caret).unwrap().len(), 1);
  }
}