[move-cli] added unit tests for coverage merging functionality

language/tools/move-cli/tests/metatests/args.exp

@@ -4,11 +4,31 @@ Command `test dummy/test_2`:
 1 / 1 test(s) passed.
 Command `test dummy`:
 2 / 2 test(s) passed.
-Command `test cov`:
+Command `test cov/plain --track-cov`:
 1 / 1 test(s) passed.
-Command `test cov --track-cov`:
+Module 00000000000000000000000000000042::M
+	fun test
+		total: 1
+		covered: 1
+		% coverage: 100.00
+>>> % Module coverage: 100.00
+Command `test cov/two-runs-same-module --track-cov`:
 1 / 1 test(s) passed.
 Module 00000000000000000000000000000042::M
+	fun test
+		total: 7
+		covered: 7
+		% coverage: 100.00
+>>> % Module coverage: 100.00
+Command `test cov/two-runs-diff-module --track-cov`:
+1 / 1 test(s) passed.
+Module 00000000000000000000000000000042::M1
+	fun test
+		total: 1
+		covered: 1
+		% coverage: 100.00
+>>> % Module coverage: 100.00
+Module 00000000000000000000000000000042::M2
 	fun test
 		total: 1
 		covered: 1

language/tools/move-cli/tests/metatests/args.txt

@@ -1,5 +1,6 @@
 test dummy/test_1/args.txt
 test dummy/test_2
 test dummy
-test cov
-test cov --track-cov
+test cov/plain --track-cov
+test cov/two-runs-same-module --track-cov
+test cov/two-runs-diff-module --track-cov

language/tools/move-cli/tests/metatests/cov/plain/src/modules/M.move

@@ -0,0 +1,5 @@
+address 0x42 {
+module M {
+    public fun test() {}
+}
+}

language/tools/move-cli/tests/metatests/cov/plain/src/scripts/test.move

@@ -0,0 +1,7 @@
+script {
+    use 0x42::M;
+
+    fun main() {
+        M::test();
+    }
+}

language/tools/move-cli/tests/metatests/cov/two-runs-diff-module/args.exp

@@ -0,0 +1,3 @@
+Command `publish src/modules --mode bare`:
+Command `run src/scripts/test.move --args 0u8 --mode bare --dry-run`:
+Command `run src/scripts/test.move --args 1u8 --mode bare --dry-run`:

language/tools/move-cli/tests/metatests/cov/two-runs-diff-module/args.txt

@@ -0,0 +1,3 @@
+publish src/modules --mode bare
+run src/scripts/test.move --args 0u8 --mode bare --dry-run
+run src/scripts/test.move --args 1u8 --mode bare --dry-run

language/tools/move-cli/tests/metatests/cov/two-runs-diff-module/src/modules/M1.move

@@ -0,0 +1,5 @@
+address 0x42 {
+module M1 {
+    public fun test() {}
+}
+}

language/tools/move-cli/tests/metatests/cov/two-runs-diff-module/src/modules/M2.move

@@ -0,0 +1,5 @@
+address 0x42 {
+module M2 {
+    public fun test() {}
+}
+}

language/tools/move-cli/tests/metatests/cov/two-runs-diff-module/src/scripts/test.move

@@ -0,0 +1,12 @@
+script {
+    use 0x42::M1;
+    use 0x42::M2;
+
+    fun main(x: u8) {
+        if (x == 0) {
+            M1::test();
+        } else {
+            M2::test();
+        }
+    }
+}

language/tools/move-cli/tests/metatests/cov/two-runs-same-module/args.exp

@@ -0,0 +1,3 @@
+Command `publish src/modules --mode bare`:
+Command `run src/scripts/test.move --args 0u8 --mode bare --dry-run`:
+Command `run src/scripts/test.move --args 1u8 --mode bare --dry-run`:

language/tools/move-cli/tests/metatests/cov/two-runs-same-module/args.txt

@@ -0,0 +1,3 @@
+publish src/modules --mode bare
+run src/scripts/test.move --args 0u8 --mode bare --dry-run
+run src/scripts/test.move --args 1u8 --mode bare --dry-run

language/tools/move-cli/tests/metatests/cov/two-runs-same-module/src/modules/M.move

@@ -0,0 +1,11 @@
+address 0x42 {
+module M {
+    public fun test(x: u8) {
+        if (x == 0) {
+            return ()
+        } else {
+            return ()
+        }
+    }
+}
+}

language/tools/move-cli/tests/metatests/cov/two-runs-same-module/src/scripts/test.move

@@ -0,0 +1,7 @@
+script {
+    use 0x42::M;
+
+    fun main(x: u8) {
+        M::test(x);
+    }
+}