add unit tests to esp-idf

rename nvs host test folder, modify .gitlab-ci.yml

remove unit-test-app build

re-format unit test files

remove extra newlines in project.mk

some refactoring for unit test part in project.mk

add build files of unit-test-app in gitignore

add README.md for unit test app

correct headings in README.md

remove files and make minor tweaks in unit test app

update .gitlab-ci.yml to use unit test app

delete unused lines in component_wrapper.mk

delete periph_i2s.h and lcd test

add text floating point in components/esp32/test/Kconfig

correct idf test build paths in .gitlab-ci.yml

components/partition_table/test/test_partition.c

@@ -0,0 +1,95 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include "unity.h"
+#include "esp_partition.h"
+
+
+TEST_CASE("Can read partition table", "[partition]")
+{
+
+    const esp_partition_t *p = esp_partition_find_first(ESP_PARTITION_TYPE_APP, ESP_PARTITION_SUBTYPE_ANY, NULL);
+    TEST_ASSERT_NOT_NULL(p);
+    TEST_ASSERT_EQUAL(p->address, 0x10000);
+    TEST_ASSERT_EQUAL(p->subtype, ESP_PARTITION_SUBTYPE_APP_FACTORY);
+
+    esp_partition_iterator_t it = esp_partition_find(ESP_PARTITION_TYPE_DATA, ESP_PARTITION_SUBTYPE_ANY, NULL);
+    TEST_ASSERT_NOT_NULL(it);
+    int count = 0;
+    for (; it != NULL; it = esp_partition_next(it)) {
+        const esp_partition_t *p = esp_partition_get(it);
+        TEST_ASSERT_NOT_NULL(p);
+        ++count;
+    }
+    esp_partition_iterator_release(it);
+    TEST_ASSERT_EQUAL(count, 2);
+
+    printf("%d\n", __builtin_clz(count));
+}
+
+TEST_CASE("Can write, read, mmap partition", "[partition]")
+{
+    const esp_partition_t *p = esp_partition_find_first(ESP_PARTITION_TYPE_DATA, ESP_PARTITION_SUBTYPE_ANY, NULL);
+    TEST_ASSERT_NOT_NULL(p);
+    const size_t max_size = 2 * SPI_FLASH_SEC_SIZE;
+    uint8_t *data = (uint8_t *) malloc(max_size);
+    TEST_ASSERT_NOT_NULL(data);
+
+    TEST_ASSERT_EQUAL(ESP_OK, esp_partition_erase_range(p, 0, p->size));
+
+    srand(0);
+    size_t block_size;
+    for (size_t offset = 0; offset < p->size; offset += block_size) {
+        block_size = ((rand() + 4) % max_size) & (~0x3);
+        size_t left = p->size - offset;
+        if (block_size > left) {
+            block_size = left;
+        }
+        for (size_t i = 0; i < block_size / 4; ++i) {
+            ((uint32_t *) (data))[i] = rand();
+            if (i == 0 && offset == 0) {
+                printf("write: %08x\n", ((uint32_t *) (data))[i]);
+            }
+        }
+        TEST_ASSERT_EQUAL(ESP_OK, esp_partition_write(p, offset, data, block_size));
+    }
+
+    srand(0);
+    for (size_t offset = 0; offset < p->size; offset += block_size) {
+        block_size = ((rand() + 4) % max_size) & (~0x3);
+        size_t left = p->size - offset;
+        if (block_size > left) {
+            block_size = left;
+        }
+        TEST_ASSERT_EQUAL(ESP_OK, esp_partition_read(p, offset, data, block_size));
+        for (size_t i = 0; i < block_size / 4; ++i) {
+            TEST_ASSERT_EQUAL(rand(), ((uint32_t *) data)[i]);
+        }
+    }
+
+    free(data);
+
+    const uint32_t *mmap_data;
+    spi_flash_mmap_handle_t mmap_handle;
+    size_t begin = 3000;
+    size_t size = 12000;
+    TEST_ASSERT_EQUAL(ESP_OK, esp_partition_mmap(p, begin, size, SPI_FLASH_MMAP_DATA,
+                      (const void **)&mmap_data, &mmap_handle));
+    srand(0);
+    for (size_t offset = 0; offset < p->size; offset += block_size) {
+        block_size = ((rand() + 4) % max_size) & (~0x3);
+        size_t left = p->size - offset;
+        if (block_size > left) {
+            block_size = left;
+        }
+        for (size_t i = 0; i < block_size / 4; ++i) {
+            size_t pos = offset + i * 4;
+            uint32_t expected = rand();
+            if (pos < begin || pos >= (begin + size)) {
+                continue;
+            }
+            TEST_ASSERT_EQUAL(expected, mmap_data[(pos - begin) / 4]);
+        }
+    }
+
+    spi_flash_munmap(mmap_handle);
+}