initial version

tests/character.test.ts

@@ -0,0 +1,39 @@
+import {
+  assertEquals,
+  assertThrows,
+} from "https://deno.land/std@0.224.0/assert/mod.ts";
+
+import { getCharacterWidth } from "../mod.ts";
+
+Deno.test("getCharacterWidth ASCII", () => {
+  assertEquals(getCharacterWidth("a"), 1);
+  assertEquals(getCharacterWidth("A"), 1);
+  assertEquals(getCharacterWidth("1"), 1);
+  assertEquals(getCharacterWidth("@"), 1);
+  assertEquals(getCharacterWidth(" "), 1);
+
+  assertThrows(() => getCharacterWidth(""));
+  assertThrows(() => getCharacterWidth("ab"));
+});
+
+Deno.test("getCharacterWidth CJK", () => {
+  assertEquals(getCharacterWidth("你"), 2);
+  assertEquals(getCharacterWidth("好"), 2);
+  assertEquals(getCharacterWidth("吗"), 2);
+
+  assertEquals(getCharacterWidth("ガ"), 2);
+  assertEquals(getCharacterWidth("ギ"), 2);
+  assertEquals(getCharacterWidth("グ"), 2);
+  assertEquals(getCharacterWidth("ソ"), 2);
+
+  assertThrows(() => getCharacterWidth("？"));
+  assertThrows(() => getCharacterWidth("！"));
+  assertThrows(() => getCharacterWidth("你好"));
+  assertThrows(() => getCharacterWidth("ヨスガノ"));
+});
+
+Deno.test("getCharacterWidth previously faulty cases", () => {
+  assertEquals(getCharacterWidth("𤲶"), 2);
+
+  assertThrows(() => getCharacterWidth("𤲶"[0]));
+});

tests/section.test.ts

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+import { assertEquals } from "https://deno.land/std@0.224.0/assert/mod.ts";
+
+import { createSection } from "../logic/section.ts";
+
+Deno.test("createSection", () => {
+  const section = createSection(
+    { sx: 0, sy: 0 },
+    {
+      xSections: 2,
+      ySections: 2,
+      sectionWidth: 3,
+      sectionHeight: 3,
+      defaultCh: " ",
+      defaultColor: "F",
+      defaultBgColor: "0",
+      defaultWidth: 1,
+    }
+  );
+
+  assertEquals(section.offsetX, 0);
+  assertEquals(section.offsetY, 0);
+  assertEquals(section.ch.length, 3);
+  for (const row of section.ch) {
+    assertEquals(row.length, 3);
+    for (const ch of row) {
+      assertEquals(ch, " ");
+    }
+  }
+
+  assertEquals(section.color.length, 3);
+  for (const row of section.color) {
+    assertEquals(row.length, 3);
+    for (const color of row) {
+      assertEquals(color, "F");
+    }
+  }
+
+  assertEquals(section.bgColor.length, 3);
+  for (const row of section.bgColor) {
+    assertEquals(row.length, 3);
+    for (const bgColor of row) {
+      assertEquals(bgColor, "0");
+    }
+  }
+
+  assertEquals(section.width.length, 3);
+  for (const row of section.width) {
+    assertEquals(row.length, 3);
+    for (const width of row) {
+      assertEquals(width, 1);
+    }
+  }
+});