add tests for serde support

.github/workflows/ci.yml

@@ -18,12 +18,12 @@ jobs:
         uses: taiki-e/install-action@cargo-llvm-cov
       - name: Run tests on Linux or macOS
         run: |
-          cargo llvm-cov --color always --lcov --output-path lcov.info --features=search,termwiz,termion,arbitrary
+          cargo llvm-cov --color always --lcov --output-path lcov.info --features=search,termwiz,termion,serde,arbitrary
           cargo llvm-cov --color always --no-run
         if: ${{ matrix.os != 'windows-latest' }}
       - name: Run tests on Windows
         run: |
-          cargo llvm-cov --color always --lcov --output-path lcov.info --features=search,termwiz,arbitrary
+          cargo llvm-cov --color always --lcov --output-path lcov.info --features=search,termwiz,serde,arbitrary
           cargo llvm-cov --color always --no-run
         if: ${{ matrix.os == 'windows-latest' }}
       - run: cargo test --no-default-features --features=tuirs-crossterm,search -- --skip .rs
@@ -44,8 +44,7 @@ jobs:
       - uses: Swatinem/rust-cache@v2
       - run: cargo fmt -- --check
       - run: cargo clippy --examples --tests -- -D warnings
-      - run: cargo clippy --examples --tests --features search -- -D warnings
-      - run: cargo clippy --examples --tests --features serde -- -D warnings
+      - run: cargo clippy --examples --tests --features search,serde -- -D warnings
       - run: cargo clippy --examples --tests --no-default-features --features termion -- -D warnings
       - run: cargo clippy --examples --tests --no-default-features --features termion,search -- -D warnings
       - run: cargo clippy --examples --tests --no-default-features --features termwiz -- -D warnings
@@ -58,7 +57,7 @@ jobs:
       - run: cargo clippy --examples --tests --no-default-features --features tuirs-termion,search -- -D warnings
       - run: cargo clippy --examples --tests --no-default-features --features tuirs-no-backend -- -D warnings
       - run: cargo clippy --examples --tests --no-default-features --features tuirs-no-backend,search -- -D warnings
-      - run: cargo rustdoc --features=search,termwiz,termion -p tui-textarea -- -D warnings
+      - run: cargo rustdoc --features=search,termwiz,termion,serde -p tui-textarea -- -D warnings
   cargo-doc:
     runs-on: ubuntu-latest
     steps:

Cargo.toml

@@ -103,7 +103,10 @@ members = ["bench"]
 [profile.bench]
 lto = "thin"
 
+[dev-dependencies]
+serde_json = "1.0.120"
+
 [package.metadata.docs.rs]
 targets = ["x86_64-unknown-linux-gnu"]
-features = ["search", "crossterm", "termwiz", "termion"]
+features = ["search", "crossterm", "termwiz", "termion", "serde"]
 rustdoc-args = ["--cfg", "docsrs"]

tests/serde.rs

@@ -0,0 +1,47 @@
+#![cfg(feature = "serde")]
+
+use tui_textarea::{CursorMove, Input, Key, Scrolling};
+
+#[test]
+fn test_serde_key() {
+    let k = Key::Char('a');
+    let s = serde_json::to_string(&k).unwrap();
+    assert_eq!(s, r#"{"Char":"a"}"#);
+    let d: Key = serde_json::from_str(&s).unwrap();
+    assert_eq!(d, k);
+}
+
+#[test]
+fn test_serde_input() {
+    let i = Input {
+        key: Key::Char('a'),
+        ctrl: true,
+        alt: false,
+        shift: true,
+    };
+    let s = serde_json::to_string(&i).unwrap();
+    assert_eq!(
+        s,
+        r#"{"key":{"Char":"a"},"ctrl":true,"alt":false,"shift":true}"#,
+    );
+    let d: Input = serde_json::from_str(&s).unwrap();
+    assert_eq!(d, i);
+}
+
+#[test]
+fn test_serde_scrolling() {
+    let scroll = Scrolling::Delta { rows: 1, cols: 2 };
+    let s = serde_json::to_string(&scroll).unwrap();
+    assert_eq!(s, r#"{"Delta":{"rows":1,"cols":2}}"#);
+    let d: Scrolling = serde_json::from_str(&s).unwrap();
+    assert_eq!(d, scroll);
+}
+
+#[test]
+fn test_serde_cursor_move() {
+    let c = CursorMove::Forward;
+    let s = serde_json::to_string(&c).unwrap();
+    assert_eq!(s, r#""Forward""#);
+    let d: CursorMove = serde_json::from_str(&s).unwrap();
+    assert_eq!(d, c);
+}