8 files changed, 201 insertions, 0 deletions

diff --git a/cli/tests/coverage/branch.ts b/cli/tests/coverage/branch.ts
new file mode 100644
index 000000000..352167109
--- /dev/null
+++ b/cli/tests/coverage/branch.ts
@@ -0,0 +1,15 @@
+export function branch(condition: boolean): boolean {
+  if (condition) {
+    return true;
+  } else {
+    return false;
+  }
+}
+
+export function unused(condition: boolean): boolean {
+  if (condition) {
+    return false;
+  } else {
+    return true;
+  }
+}
diff --git a/cli/tests/coverage/branch_test.ts b/cli/tests/coverage/branch_test.ts
new file mode 100644
index 000000000..2a44c8071
--- /dev/null
+++ b/cli/tests/coverage/branch_test.ts
@@ -0,0 +1,5 @@
+import { branch } from "./branch.ts";
+
+Deno.test("branch", function () {
+  branch(true);
+});
diff --git a/cli/tests/coverage/complex.ts b/cli/tests/coverage/complex.ts
new file mode 100644
index 000000000..a54c3437b
--- /dev/null
+++ b/cli/tests/coverage/complex.ts
@@ -0,0 +1,68 @@
+// This entire interface should be completely ignored by the coverage tool.
+export interface Complex {
+  // These comments should be ignored.
+  foo: string;
+
+  // But this is a stub, so this isn't really documentation.
+  bar: string;
+
+  // Really all these are doing is padding the line count.
+  baz: string;
+}
+
+// Lets add some wide characters to ensure that the absolute byte offsets are
+// being matched properly.
+//
+// 패딩에 대한 더 많은 문자.
+function dependency(
+  foo: string,
+  bar: string,
+  baz: string,
+): Complex {
+  return {
+    foo,
+    bar,
+    baz,
+  };
+}
+
+// Again just more wide characters for padding.
+//
+// 良い対策のためにいくつかのユニコード文字を投げる。
+export function complex(
+  foo: string,
+  bar: string,
+  baz: string,
+): Complex {
+  return dependency(
+    foo,
+    bar,
+    baz,
+  );
+}
+
+// And yet again for good measure.
+// 更多用於填充的字元。
+export function unused(
+  foo: string,
+  bar: string,
+  baz: string,
+): Complex {
+  return complex(
+    foo,
+    bar,
+    baz,
+  );
+}
+
+// Using a non-ascii name again to ensure that the byte offsets match up
+// correctly.
+export const π = Math.PI;
+
+// And same applies for this one, this one is unused and will show up in
+// lacking coverage.
+export function ƒ(): number {
+  return (
+    0
+  );
+}
diff --git a/cli/tests/coverage/complex_test.ts b/cli/tests/coverage/complex_test.ts
new file mode 100644
index 000000000..fda948bc3
--- /dev/null
+++ b/cli/tests/coverage/complex_test.ts
@@ -0,0 +1,5 @@
+import { complex } from "./complex.ts";
+
+Deno.test("complex", function () {
+  complex("foo", "bar", "baz");
+});
diff --git a/cli/tests/coverage/expected_branch.lcov b/cli/tests/coverage/expected_branch.lcov
new file mode 100644
index 000000000..07e29cca5
--- /dev/null
+++ b/cli/tests/coverage/expected_branch.lcov
@@ -0,0 +1,27 @@
+SF:[WILDCARD]branch.ts
+FN:2,branch
+FN:10,unused
+FNDA:1,branch
+FNDA:0,unused
+FNF:2
+FNH:1
+BRDA:4,1,0,0
+BRF:1
+BRH:0
+DA:1,1
+DA:2,2
+DA:3,2
+DA:4,0
+DA:5,0
+DA:6,0
+DA:7,1
+DA:9,0
+DA:10,0
+DA:11,0
+DA:12,0
+DA:13,0
+DA:14,0
+DA:15,0
+LH:4
+LF:14
+end_of_record
diff --git a/cli/tests/coverage/expected_branch.out b/cli/tests/coverage/expected_branch.out
new file mode 100644
index 000000000..630ea93b2
--- /dev/null
+++ b/cli/tests/coverage/expected_branch.out
@@ -0,0 +1,12 @@
+cover [WILDCARD]/coverage/branch.ts ... 28.571% (4/14)
+   4 |   } else {
+   5 |     return false;
+   6 |   }
+-----|-----
+   9 | export function unused(condition: boolean): boolean {
+  10 |   if (condition) {
+  11 |     return false;
+  12 |   } else {
+  13 |     return true;
+  14 |   }
+  15 | }
diff --git a/cli/tests/coverage/expected_complex.lcov b/cli/tests/coverage/expected_complex.lcov
new file mode 100644
index 000000000..0182b3de7
--- /dev/null
+++ b/cli/tests/coverage/expected_complex.lcov
@@ -0,0 +1,52 @@
+SF:[WILDCARD]complex.ts
+FN:22,dependency
+FN:37,complex
+FN:51,unused
+FN:65,ƒ
+FNDA:1,dependency
+FNDA:1,complex
+FNDA:0,unused
+FNDA:0,ƒ
+FNF:4
+FNH:2
+BRF:0
+BRH:0
+DA:17,2
+DA:18,2
+DA:19,2
+DA:20,2
+DA:22,2
+DA:23,2
+DA:24,2
+DA:25,2
+DA:26,2
+DA:27,1
+DA:32,1
+DA:33,1
+DA:34,1
+DA:35,1
+DA:37,2
+DA:38,2
+DA:39,2
+DA:40,2
+DA:41,2
+DA:42,1
+DA:46,0
+DA:47,0
+DA:48,0
+DA:49,0
+DA:51,0
+DA:52,0
+DA:53,0
+DA:54,0
+DA:55,0
+DA:56,0
+DA:60,1
+DA:64,0
+DA:65,0
+DA:66,0
+DA:67,0
+DA:68,1
+LH:22
+LF:36
+end_of_record
diff --git a/cli/tests/coverage/expected_complex.out b/cli/tests/coverage/expected_complex.out
new file mode 100644
index 000000000..1dee78a87
--- /dev/null
+++ b/cli/tests/coverage/expected_complex.out
@@ -0,0 +1,17 @@
+cover [WILDCARD]/coverage/complex.ts ... 61.111% (22/36)
+  46 | export function unused(
+  47 |   foo: string,
+  48 |   bar: string,
+  49 |   baz: string,
+-----|-----
+  51 |   return complex(
+  52 |     foo,
+  53 |     bar,
+  54 |     baz,
+  55 |   );
+  56 | }
+-----|-----
+  64 | export function ƒ(): number {
+  65 |   return (
+  66 |     0
+  67 |   );